title
Java Full Course In 12 Hours | Java Tutorial for Beginners | Java Online Training | Edureka

description
🔥𝐄𝐝𝐮𝐫𝐞𝐤𝐚 𝐉𝐚𝐯𝐚 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠: https://www.edureka.co/java-j2ee-training-course (Use code "𝐘𝐎𝐔𝐓𝐔𝐁𝐄𝟐𝟎") This Edureka Java Full Course will help you in understanding the various fundamentals of Java programming in detail with examples. Below are the topics covered in this Java Full Course video: 00:00:00 Introduction 00:01:08 Agenda 00:02:23 What is Java 00:03:52 History of java 00:04:25 Features of Java 00:07:44 Installation of Java 00:15:57 First program in Java 00:16:51 Variables in Java 00:18:21 Data types in Java 00:19:11 Operators in Java 00:31:16 Control Statement in Java 00:39:40 Object oriented programming in Java 00:58:02 Method Overriding 01:00:10 Why you should learn Java 01:27:40 Loops in Java 01:40:40 OOPS Concept in Java 02:43:21 Inheritence in Java 03:02:31 Polymorphism in Java 03:35:41 Arrays in Java 04:42:53 ArrayList in Java 04:58:50 Java Strings 05:34:04 Java Interface 05:48:10 Data Structure in Java 06:06:40 LinkedList in Java 06:25:46 HashMap in Java 06:37:21 Generics in java 07:01:57 Object serialization in Java 07:16:48 Java Threads 07:43:23 Multithreading in Java 07:58:17 Regular Expression in Java 08:24:30 Socket programming in Java 08:36:15 Design patterns in Java 08:59:10 Java Projects 09:2407 Top Java Developer skills 09:34:40 Top 10 Java Framework 09:53:17 Top 10 Books to learn Java 10:04:11 Java Interview Question and Answers 🔴 Subscribe to our channel to get video updates. Hit the subscribe button above: https://goo.gl/6ohpTV 🔴 Check out Java Tutorial Playlist: https://goo.gl/ES3dI3 🔴 𝐄𝐝𝐮𝐫𝐞𝐤𝐚 𝐎𝐧𝐥𝐢𝐧𝐞 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐚𝐧𝐝 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 🔵 DevOps Online Training: http://bit.ly/3VkBRUT 🌕 AWS Online Training: http://bit.ly/3ADYwDY 🔵 React Online Training: http://bit.ly/3Vc4yDw 🌕 Tableau Online Training: http://bit.ly/3guTe6J 🔵 Power BI Online Training: http://bit.ly/3VntjMY 🌕 Selenium Online Training: http://bit.ly/3EVDtis 🔵 PMP Online Training: http://bit.ly/3XugO44 🌕 Salesforce Online Training: http://bit.ly/3OsAXDH 🔵 Cybersecurity Online Training: http://bit.ly/3tXgw8t 🌕 Java Online Training: http://bit.ly/3tRxghg 🔵 Big Data Online Training: http://bit.ly/3EvUqP5 🌕 RPA Online Training: http://bit.ly/3GFHKYB 🔵 Python Online Training: http://bit.ly/3Oubt8M 🌕 Azure Online Training: http://bit.ly/3i4P85F 🔵 GCP Online Training: http://bit.ly/3VkCzS3 🌕 Microservices Online Training: http://bit.ly/3gxYqqv 🔵 Data Science Online Training: http://bit.ly/3V3nLrc 🌕 CEHv12 Online Training: http://bit.ly/3Vhq8Hj 🔵 Angular Online Training: http://bit.ly/3EYcCTe 🔴 𝐄𝐝𝐮𝐫𝐞𝐤𝐚 𝐑𝐨𝐥𝐞-𝐁𝐚𝐬𝐞𝐝 𝐂𝐨𝐮𝐫𝐬𝐞𝐬 🔵 DevOps Engineer Masters Program: http://bit.ly/3Oud9PC 🌕 Cloud Architect Masters Program: http://bit.ly/3OvueZy 🔵 Data Scientist Masters Program: http://bit.ly/3tUAOiT 🌕 Big Data Architect Masters Program: http://bit.ly/3tTWT0V 🔵 Machine Learning Engineer Masters Program: http://bit.ly/3AEq4c4 🌕 Business Intelligence Masters Program: http://bit.ly/3UZPqJz 🔵 Python Developer Masters Program: http://bit.ly/3EV6kDv 🌕 RPA Developer Masters Program: http://bit.ly/3OteYfP 🔵 Web Development Masters Program: http://bit.ly/3U9R5va 🌕 Computer Science Bootcamp Program : http://bit.ly/3UZxPBy 🔵 Cyber Security Masters Program: http://bit.ly/3U25rNR 🌕 Full Stack Developer Masters Program : http://bit.ly/3tWCE2S 🔵 Automation Testing Engineer Masters Program : http://bit.ly/3AGXg2J 🌕 Python Developer Masters Program : https://bit.ly/3EV6kDv 🔵 Azure Cloud Engineer Masters Program: http://bit.ly/3AEBHzH 🔴 𝐄𝐝𝐮𝐫𝐞𝐤𝐚 𝐔𝐧𝐢𝐯𝐞𝐫𝐬𝐢𝐭𝐲 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐬 🌕 Professional Certificate Program in DevOps with Purdue University: https://bit.ly/3Ov52lT 🔵 Advanced Certificate Program in Data Science with E&ICT Academy, IIT Guwahati: http://bit.ly/3V7ffrh 🌕 Artificial and Machine Learning PGD with E&ICT Academy NIT Warangal: http://bit.ly/3OuZ3xs 📢📢 𝐓𝐨𝐩 𝟏𝟎 𝐓𝐫𝐞𝐧𝐝𝐢𝐧𝐠 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐭𝐨 𝐋𝐞𝐚𝐫𝐧 𝐢𝐧 2023 𝐒𝐞𝐫𝐢𝐞𝐬 📢📢 ⏩ NEW Top 10 Technologies To Learn In 2023 - https://youtu.be/udD_GQVDt5g 📌𝐓𝐞𝐥𝐞𝐠𝐫𝐚𝐦: https://t.me/edurekaupdates 📌𝐓𝐰𝐢𝐭𝐭𝐞𝐫: https://twitter.com/edurekain 📌𝐋𝐢𝐧𝐤𝐞𝐝𝐈𝐧: https://www.linkedin.com/company/edureka 📌𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦: https://www.instagram.com/edureka_learning/ 📌𝐅𝐚𝐜𝐞𝐛𝐨𝐨𝐤: https://www.facebook.com/edurekaIN/ 📌𝐒𝐥𝐢𝐝𝐞𝐒𝐡𝐚𝐫𝐞: https://www.slideshare.net/EdurekaIN 📌𝐂𝐚𝐬𝐭𝐛𝐨𝐱: https://castbox.fm/networks/505?country=IN 📌𝐌𝐞𝐞𝐭𝐮𝐩: https://www.meetup.com/edureka/ 📌𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐭𝐲: https://www.edureka.co/community/ Got a question on the topic? Please share it in the comment section below and our experts will answer it for you. Please write back to us at sales@edureka.co or call us at IND: 9606058406 / US: 18338555775 (toll-free) for more information.

detail
{'title': 'Java Full Course In 12 Hours | Java Tutorial for Beginners | Java Online Training | Edureka', 'heatmap': [{'end': 2957.299, 'start': 2104.311, 'weight': 0.833}], 'summary': "This 12-hour java tutorial for beginners covers java's industry relevance, programming fundamentals, object-oriented programming, exception handling, polymorphism, arrays, data structures, file handling, design patterns, projects, developer skills, frameworks, servlets, web development, and database integration with insights on salary trends and popular java frameworks.", 'chapters': [{'end': 456.971, 'segs': [{'end': 296.712, 'src': 'embed', 'start': 266.751, 'weight': 0, 'content': [{'end': 270.873, 'text': 'Java since its birth till today is an open source product.', 'start': 266.751, 'duration': 4.122}, {'end': 279.678, 'text': 'There are many speculations that say Java is not free anymore, but to be sure Java is still free.', 'start': 271.694, 'duration': 7.984}, {'end': 285.622, 'text': 'and the open JDK and Oracle JDK are completely similar to each other.', 'start': 280.558, 'duration': 5.064}, {'end': 296.712, 'text': 'That means you can type your code using Oracle JDK and execute it in open JDK and the JDK versions are also available for all the types of operating systems,', 'start': 286.123, 'duration': 10.589}], 'summary': 'Java is an open source product, still free, and available for all operating systems.', 'duration': 29.961, 'max_score': 266.751, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz0266751.jpg'}, {'end': 430.8, 'src': 'embed', 'start': 405.831, 'weight': 1, 'content': [{'end': 410.916, 'text': 'any machine with Java runtime environment can run Java programs.', 'start': 405.831, 'duration': 5.085}, {'end': 412.037, 'text': 'followed by this.', 'start': 410.916, 'duration': 1.121}, {'end': 414.94, 'text': 'the next feature is portability.', 'start': 412.037, 'duration': 2.903}, {'end': 418.603, 'text': 'the cross-platform feature enables the Java code to be highly portable.', 'start': 414.94, 'duration': 3.663}, {'end': 425.259, 'text': 'In Java, everything is an object which has some data and behavior.', 'start': 419.398, 'duration': 5.861}, {'end': 430.8, 'text': 'Java can be easily extended as it is based on object-oriented programming model.', 'start': 425.259, 'duration': 5.541}], 'summary': 'Java programs are portable and extensible, operating on any machine with java runtime environment, as it is based on object-oriented programming model.', 'duration': 24.969, 'max_score': 405.831, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz0405831.jpg'}], 'start': 6.539, 'title': "Java's features and industry relevance", 'summary': "Delves into java's promising future, popularity, software development environment, basics, oops concepts, technical aspects, data structures, core concepts, projects, career aspects, and its relevance in industry applications and tech giants' usage. it also explores java's key features such as its open-source nature, high performance, multi-threading capabilities, security features, platform independence, portability, and robust error handling.", 'chapters': [{'end': 265.911, 'start': 6.539, 'title': 'Java: the in-demand programming language', 'summary': "Discusses the promising future of java, its popularity, thriving software development environment, and the comprehensive coverage of java basics, oops concepts, technical aspects, data structures, core concepts, projects, and career aspects, emphasizing its relevance in industry applications and major tech giants' usage.", 'duration': 259.372, 'highlights': ["Java remains one of the most in-demand programming languages even today Java's enduring popularity is evidenced by its in-demand status in the programming language landscape.", "Java is the base of all data frames storage and parts of every single major application, used in tech giants' applications and websites Java's integral role in data storage, major applications, and tech giants' usage demonstrates its significance in the software development industry.", "Java is used in multiple domains such as social media, big data and Hadoop, Android, application development, data science and artificial intelligence, data security, software testing, and data analytics The versatility of Java's applications spans across various domains including social media, big data, Android, data science, data security, and more, showcasing its wide-ranging utility."]}, {'end': 456.971, 'start': 266.751, 'title': 'Features of java programming', 'summary': 'Discusses the key features of java programming, including its open-source nature, high performance with just-in-time compiler, multi-threading capabilities, security features, platform independence, portability, and robust error handling.', 'duration': 190.22, 'highlights': ["Platform Independence Java's bytecode is platform independent, allowing it to run on any machine, enhancing security and portability.", 'Robust Error Handling Java emphasizes compile time and runtime error checking, with improvements in memory management and exception handling, including automatic garbage collection.', "Multi-threading Java's multi-threading feature allows for simultaneous execution of tasks, utilizing the same memory and resources, enhancing performance.", 'Security Java enables the development of virus-free and tamper-free systems, running in a secure Java runtime environment with minimal interaction with the host operating system.']}], 'duration': 450.432, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz06539.jpg', 'highlights': ["Java's enduring popularity is evidenced by its in-demand status in the programming language landscape.", "Java's integral role in data storage, major applications, and tech giants' usage demonstrates its significance in the software development industry.", "The versatility of Java's applications spans across various domains including social media, big data, Android, data science, data security, and more, showcasing its wide-ranging utility.", "Java's bytecode is platform independent, allowing it to run on any machine, enhancing security and portability.", 'Java emphasizes compile time and runtime error checking, with improvements in memory management and exception handling, including automatic garbage collection.', "Java's multi-threading feature allows for simultaneous execution of tasks, utilizing the same memory and resources, enhancing performance.", 'Java enables the development of virus-free and tamper-free systems, running in a secure Java runtime environment with minimal interaction with the host operating system.']}, {'end': 2364.115, 'segs': [{'end': 680.901, 'src': 'embed', 'start': 651.124, 'weight': 4, 'content': [{'end': 656.007, 'text': 'copy this path and paste in the edit environment variable path file.', 'start': 651.124, 'duration': 4.883}, {'end': 668.732, 'text': 'as you can see, I have my JDK path already set, which is C program files Java JDK, when after this, just select OK, as I have already set my path.', 'start': 656.007, 'duration': 12.725}, {'end': 675.317, 'text': 'I would prefer to select cancel, but you have to select OK once after your path is set.', 'start': 669.232, 'duration': 6.085}, {'end': 680.901, 'text': 'select OK and close the edit environment variables, properties or your system properties.', 'start': 675.317, 'duration': 5.584}], 'summary': 'Set jdk path in the environment variables to c program files java jdk and close the properties.', 'duration': 29.777, 'max_score': 651.124, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz0651124.jpg'}, {'end': 824.967, 'src': 'embed', 'start': 741.707, 'weight': 0, 'content': [{'end': 742.927, 'text': 'To execute our programs.', 'start': 741.707, 'duration': 1.22}, {'end': 747.728, 'text': 'We shall select Eclipse IDE to install Eclipse into a local system.', 'start': 743.187, 'duration': 4.541}, {'end': 750.669, 'text': 'Just type in Eclipse download on Google.', 'start': 748.169, 'duration': 2.5}, {'end': 761.672, 'text': 'Once, after you type in and enter Eclipse download, you will be redirected to a new web page where you will find many links,', 'start': 754.41, 'duration': 7.262}, {'end': 766.213, 'text': 'and you should select the first link, which will redirect you into the Eclipse Foundation.', 'start': 761.672, 'duration': 4.541}, {'end': 772.917, 'text': 'and in here is supposed to download Eclipse IDE 2019 12 installer file.', 'start': 767.032, 'duration': 5.885}, {'end': 780.683, 'text': 'And you can see your installer file is getting downloaded.', 'start': 777.821, 'duration': 2.862}, {'end': 793.534, 'text': 'You can see that Eclipse installation file has been successfully downloaded into your local system.', 'start': 788.55, 'duration': 4.984}, {'end': 795.856, 'text': 'Now, you just need to open the file.', 'start': 794.074, 'duration': 1.782}, {'end': 824.967, 'text': 'Now you can see multiple options of Eclipse IDE, such as Eclipse IDE for Java developers, ID for Enterprise Java developers,', 'start': 815.583, 'duration': 9.384}], 'summary': 'Install eclipse ide 2019 12 by downloading it from eclipse foundation website.', 'duration': 83.26, 'max_score': 741.707, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz0741707.jpg'}, {'end': 1297.242, 'src': 'embed', 'start': 1265.878, 'weight': 10, 'content': [{'end': 1269.159, 'text': 'Now, let us try to execute a program and see the output.', 'start': 1265.878, 'duration': 3.281}, {'end': 1277.301, 'text': 'You can see the output has been successfully generated now followed by this.', 'start': 1272.36, 'duration': 4.941}, {'end': 1281.342, 'text': 'Let us move ahead and understand the automatic operator.', 'start': 1277.841, 'duration': 3.501}, {'end': 1288.897, 'text': 'Java automatic operators are used to perform addition, subtraction, multiplication and division.', 'start': 1282.333, 'duration': 6.564}, {'end': 1292.359, 'text': 'They act as basic mathematic operations.', 'start': 1289.758, 'duration': 2.601}, {'end': 1297.242, 'text': 'Now, let us see a basic example for automatic operators.', 'start': 1293.34, 'duration': 3.902}], 'summary': 'Executing program, generating output, and learning java automatic operators.', 'duration': 31.364, 'max_score': 1265.878, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz01265878.jpg'}, {'end': 1359.587, 'src': 'embed', 'start': 1330.931, 'weight': 12, 'content': [{'end': 1332.892, 'text': 'Let us execute this and see the output.', 'start': 1330.931, 'duration': 1.961}, {'end': 1342.796, 'text': 'You can see all the automatic operations have been successfully executed and the output is also generated.', 'start': 1337.113, 'duration': 5.683}, {'end': 1353.883, 'text': 'So you can see the addition is 15 subtraction is 5 multiplication is 50 division is 2 and modulus is 0.', 'start': 1342.816, 'duration': 11.067}, {'end': 1359.587, 'text': 'Now with this let us move ahead into the next type of operators which are none other than the shift operators.', 'start': 1353.883, 'duration': 5.704}], 'summary': 'Successful execution of automatic operations: addition 15, subtraction 5, multiplication 50, division 2, modulus 0.', 'duration': 28.656, 'max_score': 1330.931, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz01330931.jpg'}, {'end': 1769.438, 'src': 'embed', 'start': 1741.306, 'weight': 13, 'content': [{'end': 1746.668, 'text': 'You can see that we have two different values which are A and B.', 'start': 1741.306, 'duration': 5.362}, {'end': 1748.669, 'text': 'A has two and B has five.', 'start': 1746.668, 'duration': 2.001}, {'end': 1753.795, 'text': 'So the technically operator is this particular statement here.', 'start': 1749.474, 'duration': 4.321}, {'end': 1759.016, 'text': 'We have also allocated a new variable which is of integer type, which is minimum.', 'start': 1754.275, 'duration': 4.741}, {'end': 1769.438, 'text': 'So minimum is equals to a less than B if a is less than B then minimum is a and else B is equals to minimum.', 'start': 1759.856, 'duration': 9.582}], 'summary': 'A has a value of 2, b has a value of 5. a comparison operator is used to assign the minimum value between a and b to a new variable.', 'duration': 28.132, 'max_score': 1741.306, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz01741306.jpg'}, {'end': 2189.302, 'src': 'embed', 'start': 2153.128, 'weight': 5, 'content': [{'end': 2155.189, 'text': 'Now, let us try to execute this and see the output.', 'start': 2153.128, 'duration': 2.061}, {'end': 2162.974, 'text': 'You can see that the while loop has been successfully executed.', 'start': 2159.732, 'duration': 3.242}, {'end': 2172.493, 'text': 'The value 20 is printed only for once because the value of I which we declared was 20 and it is true according to the condition.', 'start': 2163.809, 'duration': 8.684}, {'end': 2175.015, 'text': 'So the control got terminated.', 'start': 2173.574, 'duration': 1.441}, {'end': 2179.677, 'text': 'Let us move ahead and understand the next type of loop, which is the for loop.', 'start': 2175.795, 'duration': 3.882}, {'end': 2189.302, 'text': 'The for loop in Java is used to iterate and evaluate a code multiple times when the number of iterations is known by the user.', 'start': 2180.737, 'duration': 8.565}], 'summary': 'A while loop with value 20 executed successfully. exploring for loop in java for multiple iterations.', 'duration': 36.174, 'max_score': 2153.128, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz02153128.jpg'}], 'start': 457.971, 'title': 'Java programming fundamentals', 'summary': 'Details java se 13 installation on windows, java version checking, eclipse ide installation, covers java variables, data types, and operators, and provides an overview of java operators, control statements, and their functionalities including sample programs.', 'chapters': [{'end': 680.901, 'start': 457.971, 'title': 'Java installation on windows', 'summary': 'Details the process of installing java se downloads version 13 for windows, including downloading, setting up environment variables, and setting the java path in a step-by-step guide.', 'duration': 222.93, 'highlights': ['The process involves downloading Java SE downloads version 13 for Windows by selecting the Oracle JDK platform 13, accepting the license agreement, and downloading the JDK. The chapter outlines the steps for downloading Java SE downloads version 13 for Windows, including selecting the Oracle JDK platform 13, accepting the license agreement, and initiating the download process.', "Setting up the Java home variable involves creating a new variable and adding the location of the Java's bin file, followed by saving the changes. The process of setting up the Java home variable is explained, which involves creating a new variable, adding the location of the Java's bin file, and saving the changes.", 'The next step is to set the Java path by selecting the path option from the environment variables, editing the path to the Java file, and saving the changes. The chapter covers the procedure for setting the Java path, which includes selecting the path option, editing the path to the Java file, and saving the changes.']}, {'end': 1004.307, 'start': 681.832, 'title': 'Checking java version and installing eclipse ide', 'summary': 'Covers the process of checking the existing java version on a local system, confirming java installation, and installing eclipse ide for java developers, with notably the version installed being java 1.8, and the process of creating a new java project and class in eclipse ide.', 'duration': 322.475, 'highlights': ['The Java version installed into our local system is Java 1.8, confirming successful installation.', "The process of installing Eclipse IDE for Java developers involves downloading the installer file from the Eclipse Foundation, selecting 'install' option, and creating a new Java project and class within the IDE.", 'Executing a simple hello world program in Eclipse IDE to confirm the functionality of Java and Eclipse integration.', "The steps to create a new Java project and class in Eclipse IDE involve selecting 'file', 'new', 'new Java project', entering the project name, creating a new package with the default project name, and creating a new class.", "The process of installing Eclipse IDE for Java developers includes selecting the installer file, choosing the preferred IDE version, and completing the installation by selecting 'install' option."]}, {'end': 1458.087, 'start': 1004.307, 'title': 'Java variables, data types, and operators', 'summary': 'Introduces variables in java and explains the types of variables, data types, and various operators, including their functionalities and examples, emphasizing the importance of understanding these fundamental concepts for java programming.', 'duration': 453.78, 'highlights': ['Java supports 2 bytes for integer data type, 4 bytes for float data type, 8 bytes for double and long, 2 bytes for character type, 1 byte for short, byte, and boolean, known as primitive data types. Java supports various primitive data types with specific memory allocation for each type, including integers, floats, doubles, longs, characters, shorts, bytes, and booleans.', 'The chapter explains various operators in Java such as unary, arithmetic, shift, relational, bitwise, logical, ternary, and assignment operators, providing detailed insights into their functionalities. The chapter covers a comprehensive explanation of different operators in Java, highlighting their specific roles and functionalities in programming.', 'The chapter includes detailed explanations and examples of unary operators, such as post-increment, pre-increment, post-decrement, and pre-decrement operators, with a focus on their practical application. The chapter provides detailed examples and explanations of unary operators, showcasing their practical implementation through post-increment, pre-increment, post-decrement, and pre-decrement operators.']}, {'end': 1787.982, 'start': 1458.547, 'title': 'Java operators overview', 'summary': 'Provides an overview of java operators, including relational, logical, bitwise, and ternary operators, with examples and explanations of their functionalities such as comparing operands, performing logical operations, applying bitwise operations, and reducing code length.', 'duration': 329.435, 'highlights': ['The Java relational operator is used to compare the operands on both sides and judge whether one operand is greater, lesser, equal, or not equal to the other operator. It compares the operands on both sides to determine the relationship, aiding in decision-making processes. For example, comparing A=5 and B=10 results in A being smaller than B, returning false.', "The chapter explains the logical operators 'and', 'or', and 'not', and their functionalities in Java programming language, including producing boolean results and negating existing values. It delves into the logical operators supported in Java programming language, highlighting their role in producing boolean results and negating existing values. For instance, 'and' requires both operands to be true, 'or' requires either operand to be true, and 'not' negates the existing value.", 'The chapter introduces the concept of ternary operator, a powerful operator used in Java programming language to reduce code length to one line, with a sample program demonstrating its functionality. It introduces the ternary operator as a powerful tool for reducing code length to a single line, showcasing a sample program that utilizes the operator to compare two values and assign the minimum value to another variable based on the comparison.', 'The chapter provides an overview of the bitwise operators applied on bits, with a sample program demonstrating the conversion of numbers into binary format and the application of bitwise operations. It outlines the application of bitwise operators on bits, demonstrating how numbers are converted into binary format and bitwise operations are performed. A sample program execution is showcased, highlighting the impact of bitwise operations on variable values.']}, {'end': 2364.115, 'start': 1790.243, 'title': 'Java operators and control statements', 'summary': 'Covers the concept of assignment operators and control statements in java, including if-else, while loop, do-while loop, for loop, and switch case. it also includes sample programs demonstrating the use of these concepts.', 'duration': 573.872, 'highlights': ['The chapter covers the concept of assignment operators and control statements in Java It discusses the basic assignment operators and the various control statements such as if-else, while loop, do-while loop, for loop, and switch case.', 'Sample program demonstrating the use of assignment operators The program demonstrates the use of assignment operators to add and decrement values, resulting in A=14 and B=16.', 'Explanation and demonstration of if-else control statements The chapter explains the if-else control statement and provides an example program where the condition is evaluated and the corresponding printf statements are executed.', 'Explanation and demonstration of while loop It explains the while loop and provides an example program where the loop iterates until the condition is false, printing values from 5 to 15 with an increment of 2.', 'Explanation and demonstration of do-while loop The chapter explains the do-while loop, highlighting that the loop is executed at least once and provides a program to demonstrate this.', 'Explanation and demonstration of for loop It explains the for loop and provides a sample program to iterate and evaluate a code multiple times when the number of iterations is known.', 'Explanation and demonstration of switch case statement The chapter explains the switch case statement and provides a sample program to demonstrate its use to select an instrument and generate the output.']}], 'duration': 1906.144, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz0457971.jpg', 'highlights': ['The process involves downloading Java SE downloads version 13 for Windows by selecting the Oracle JDK platform 13, accepting the license agreement, and downloading the JDK.', "Setting up the Java home variable involves creating a new variable and adding the location of the Java's bin file, followed by saving the changes.", 'The next step is to set the Java path by selecting the path option from the environment variables, editing the path to the Java file, and saving the changes.', "The process of installing Eclipse IDE for Java developers involves downloading the installer file from the Eclipse Foundation, selecting 'install' option, and creating a new Java project and class within the IDE.", 'Java supports 2 bytes for integer data type, 4 bytes for float data type, 8 bytes for double and long, 2 bytes for character type, 1 byte for short, byte, and boolean, known as primitive data types.', 'The chapter explains various operators in Java such as unary, arithmetic, shift, relational, bitwise, logical, ternary, and assignment operators, providing detailed insights into their functionalities.', 'The Java relational operator is used to compare the operands on both sides and judge whether one operand is greater, lesser, equal, or not equal to the other operator.', "The chapter explains the logical operators 'and', 'or', and 'not', and their functionalities in Java programming language, including producing boolean results and negating existing values.", 'The chapter introduces the concept of ternary operator, a powerful operator used in Java programming language to reduce code length to one line, with a sample program demonstrating its functionality.', 'The chapter provides an overview of the bitwise operators applied on bits, with a sample program demonstrating the conversion of numbers into binary format and the application of bitwise operations.', 'The chapter covers the concept of assignment operators and control statements in Java.', 'Sample program demonstrating the use of assignment operators The program demonstrates the use of assignment operators to add and decrement values, resulting in A=14 and B=16.', 'Explanation and demonstration of if-else control statements The chapter explains the if-else control statement and provides an example program where the condition is evaluated and the corresponding printf statements are executed.', 'Explanation and demonstration of while loop It explains the while loop and provides an example program where the loop iterates until the condition is false, printing values from 5 to 15 with an increment of 2.', 'Explanation and demonstration of do-while loop The chapter explains the do-while loop, highlighting that the loop is executed at least once and provides a program to demonstrate this.', 'Explanation and demonstration of for loop It explains the for loop and provides a sample program to iterate and evaluate a code multiple times when the number of iterations is known.', 'Explanation and demonstration of switch case statement The chapter explains the switch case statement and provides a sample program to demonstrate its use to select an instrument and generate the output.']}, {'end': 3643.239, 'segs': [{'end': 2550.525, 'src': 'embed', 'start': 2523.73, 'weight': 0, 'content': [{'end': 2532.676, 'text': 'Whereas the class was properties are inherited is known as the parent class inheritance in Java is further classified into four types.', 'start': 2523.73, 'duration': 8.946}, {'end': 2545.423, 'text': 'They are single inheritance, multi-level inheritance, hierarchical inheritance and, lastly, the hybrid inheritance, the first one single inheritance.', 'start': 2533.437, 'duration': 11.986}, {'end': 2550.525, 'text': 'in single inheritance, one class inherits the properties of another.', 'start': 2545.423, 'duration': 5.102}], 'summary': 'Java inheritance has four types: single, multi-level, hierarchical, and hybrid.', 'duration': 26.795, 'max_score': 2523.73, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz02523730.jpg'}, {'end': 2673.406, 'src': 'embed', 'start': 2646.92, 'weight': 1, 'content': [{'end': 2651.521, 'text': 'Followed by that the last type of inheritance is called the hybrid inheritance.', 'start': 2646.92, 'duration': 4.601}, {'end': 2662.684, 'text': 'The hybrid inheritance is a combination of multiple inheritance and multi-level inheritance since multiple inheritance is not supported in Java.', 'start': 2652.421, 'duration': 10.263}, {'end': 2665.384, 'text': 'It leads to ambiguity.', 'start': 2663.104, 'duration': 2.28}, {'end': 2673.406, 'text': 'this type of inheritance can be only achieved through interfaces which will execute examples for each one of the type of inheritances.', 'start': 2665.384, 'duration': 8.022}], 'summary': 'Hybrid inheritance combines multiple and multi-level inheritance to address the lack of support for multiple inheritance in java, achieved through interfaces.', 'duration': 26.486, 'max_score': 2646.92, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz02646920.jpg'}, {'end': 2809.673, 'src': 'embed', 'start': 2784.517, 'weight': 9, 'content': [{'end': 2791.001, 'text': 'You can see that the program has been successfully executed and the output has been generated which says edureka happy learning.', 'start': 2784.517, 'duration': 6.484}, {'end': 2800.707, 'text': 'Now we have discussed all the three inheritances, which are single level inheritance, multi-level inheritance and hierarchical inheritance.', 'start': 2791.882, 'duration': 8.825}, {'end': 2809.673, 'text': 'the last type of inheritance, which happens to be multiple inheritance or hybrid inheritance, happens to be not supported in Java to make this happen.', 'start': 2800.707, 'duration': 8.966}], 'summary': 'Program executed successfully, covering single, multi-level, and hierarchical inheritance in java.', 'duration': 25.156, 'max_score': 2784.517, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz02784517.jpg'}, {'end': 3369.769, 'src': 'embed', 'start': 3344.028, 'weight': 7, 'content': [{'end': 3349.052, 'text': 'firstly, call by value means calling a method or a function with the parameter as value.', 'start': 3344.028, 'duration': 5.024}, {'end': 3355.325, 'text': 'Through this method, the argument value is passed to the parameter, while, on the other hand,', 'start': 3349.884, 'duration': 5.441}, {'end': 3360.847, 'text': 'call by reference means calling a method with a parameter as a reference, which is the address of the value.', 'start': 3355.325, 'duration': 5.522}, {'end': 3365.028, 'text': 'Let us execute one example each to understand them in a better way.', 'start': 3361.487, 'duration': 3.541}, {'end': 3369.769, 'text': 'So this particular example is based on call by value method here.', 'start': 3365.868, 'duration': 3.901}], 'summary': 'Call by value passes argument value to parameter, call by reference passes parameter as reference (address of value).', 'duration': 25.741, 'max_score': 3344.028, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz03344028.jpg'}, {'end': 3498.705, 'src': 'embed', 'start': 3471.111, 'weight': 3, 'content': [{'end': 3475.553, 'text': 'You can see both the functions have been executed and the sum has been displayed in the output console here.', 'start': 3471.111, 'duration': 4.442}, {'end': 3477.835, 'text': 'So this was method overloading.', 'start': 3476.354, 'duration': 1.481}, {'end': 3481.177, 'text': 'Now, let us move ahead and understand method overriding in Java.', 'start': 3478.235, 'duration': 2.942}, {'end': 3484.338, 'text': 'In any object-oriented programming language,', 'start': 3482.077, 'duration': 2.261}, {'end': 3494.443, 'text': 'overriding is a feature that allows a subclass or a child class to provide a specific implementation of a method that is already provided by one of its super classes or parent classes method.', 'start': 3484.338, 'duration': 10.105}, {'end': 3498.705, 'text': 'overriding is one of the major way in which Java can achieve runtime polymorphism.', 'start': 3494.443, 'duration': 4.262}], 'summary': 'The transcript discusses method overloading and method overriding in java, illustrating their execution and significance in achieving runtime polymorphism.', 'duration': 27.594, 'max_score': 3471.111, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz03471111.jpg'}], 'start': 2366.436, 'title': 'Java object-oriented programming', 'summary': 'Introduces java object-oriented programming, covering encapsulation, inheritance, abstraction, interfaces, and advanced concepts, emphasizing their significance in the programming industry and certification training.', 'chapters': [{'end': 2459.21, 'start': 2366.436, 'title': 'Object-oriented programming in java', 'summary': 'Introduces the object-oriented programming style in java, highlighting the importance of encapsulation and explaining its mechanism and benefits, which is crucial for java as it is one of the most sought-after skills in the programming industry.', 'duration': 92.774, 'highlights': ["Encapsulation is a mechanism where you bind your data and code together as a single unit, ensuring the safety of data from any modification, and is crucial in Java which is one of the most sought-after skills. Importance of encapsulation in binding data and code, ensuring data safety, and its relevance to Java's popularity.", 'Object-oriented programming is associated with concepts such as inheritance, polymorphism, abstraction, and encapsulation, and is widely followed in popular programming languages like Java, C++, and Ruby. Association of object-oriented programming with key concepts and its prevalence in popular programming languages.', 'Object-based application in Java involves declaring classes, creating objects, and interactions between these objects. Overview of object-based application in Java involving class declaration, object creation, and object interactions.']}, {'end': 2981.368, 'start': 2459.65, 'title': 'Encapsulation, inheritance, and abstraction in java', 'summary': "Covers encapsulation with ravi's account details, inheritance types including single, multi-level, hierarchical, and hybrid, and abstraction through abstract classes and interfaces in java, with successful program executions and output.", 'duration': 521.718, 'highlights': ["The program has successfully executed and displayed Ravi's account details, including his name, account number, email, and balance amount. The program successfully executed and displayed Ravi's account details, including his name, account number, email, and balance amount.", 'The chapter explains single inheritance, multi-level inheritance, and hierarchical inheritance in Java, with successful program executions demonstrating inheritance types. The chapter explains single inheritance, multi-level inheritance, and hierarchical inheritance in Java, with successful program executions demonstrating inheritance types.', "Java's lack of support for multiple inheritance is addressed with a discussion on interfaces, with plans to discuss Java interfaces in the future chapters. Java's lack of support for multiple inheritance is addressed with a discussion on interfaces, with plans to discuss Java interfaces in the future chapters.", 'The chapter introduces abstraction in Java, explaining its role in reducing code complexity and its implementation through abstract classes and interfaces. The chapter introduces abstraction in Java, explaining its role in reducing code complexity and its implementation through abstract classes and interfaces.']}, {'end': 3159.923, 'start': 2982.348, 'title': 'Java interfaces and polymorphism', 'summary': 'Explains the concept of interfaces in java and demonstrates a program implementing basic calculating functions, as well as detailing the types of polymorphism in java - runtime and compile time, with examples.', 'duration': 177.575, 'highlights': ['The program demonstrates the implementation of a Java interface for basic calculating functions such as addition, subtraction, multiplication, and division, with specific input-output examples like 10+20=30, 10-5=5, 10*20=200, and 20/5=4.', 'Polymorphism in Java is explained as the ability of a variable, function, or object to take on multiple forms, with details on two types - runtime polymorphism, resolved at runtime, and compile time polymorphism, resolved at compile time, with examples of method overriding and method overloading provided.', 'The concept of method overloading in Java is explained as a feature that allows a class to have two or more methods with the same name but different arguments, with details on the differences in arguments such as number, data types, and sequence, provided.', 'Method overriding in Java is highlighted as an example of runtime polymorphism, where a call to an overridden method is resolved at runtime rather than at compile time, providing a reference variable used to call an overridden method of a superclass at runtime.', 'The program demonstrates the functionality of the implemented Java interface with specific input-output examples for addition, subtraction, multiplication, and division, showcasing the successful execution of the program and the generation of correct results.']}, {'end': 3643.239, 'start': 3159.923, 'title': 'Advanced java concepts overview', 'summary': "Covers advanced java concepts including exception handling, multi-threading, call by value and call by reference, method overloading, and method overriding, alongside details about edureka's java certification training.", 'duration': 483.316, 'highlights': ['Edureka offers Java, J2EE and SOA certification training with 42 hours of online live instructor-led classes, real-life case studies, assignments, lifetime access to the learning management system, 24/7 expert support, and certification as an SOA Java developer. Edureka offers comprehensive Java certification training with 42 hours of online live classes and various support features.', 'The chapter covers advanced Java concepts including exception handling, multi-threading, call by value and call by reference, method overloading, and method overriding. The chapter provides an overview of advanced Java concepts such as exception handling, multi-threading, and method overloading.', 'Method overloading is a feature that allows a class to have more than one method having the same name if their arguments lists are different. Method overloading allows a class to have multiple methods with the same name but different argument lists.']}], 'duration': 1276.803, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz02366436.jpg', 'highlights': ["Importance of encapsulation in binding data and code, ensuring data safety, and its relevance to Java's popularity.", 'Association of object-oriented programming with key concepts and its prevalence in popular programming languages.', 'Overview of object-based application in Java involving class declaration, object creation, and object interactions.', "The program successfully executed and displayed Ravi's account details, including his name, account number, email, and balance amount.", 'The chapter explains single inheritance, multi-level inheritance, and hierarchical inheritance in Java, with successful program executions demonstrating inheritance types.', "Java's lack of support for multiple inheritance is addressed with a discussion on interfaces, with plans to discuss Java interfaces in the future chapters.", 'The chapter introduces abstraction in Java, explaining its role in reducing code complexity and its implementation through abstract classes and interfaces.', 'The program demonstrates the implementation of a Java interface for basic calculating functions such as addition, subtraction, multiplication, and division, with specific input-output examples like 10+20=30, 10-5=5, 10*20=200, and 20/5=4.', 'Polymorphism in Java is explained as the ability of a variable, function, or object to take on multiple forms, with details on two types - runtime polymorphism, resolved at runtime, and compile time polymorphism, resolved at compile time, with examples of method overriding and method overloading provided.', 'The concept of method overloading in Java is explained as a feature that allows a class to have two or more methods with the same name but different arguments, with details on the differences in arguments such as number, data types, and sequence, provided.', 'Method overriding in Java is highlighted as an example of runtime polymorphism, where a call to an overridden method is resolved at runtime rather than at compile time, providing a reference variable used to call an overridden method of a superclass at runtime.', 'Edureka offers comprehensive Java certification training with 42 hours of online live classes and various support features.', 'The chapter provides an overview of advanced Java concepts such as exception handling, multi-threading, and method overloading.', 'Method overloading allows a class to have multiple methods with the same name but different argument lists.']}, {'end': 6026.338, 'segs': [{'end': 4167.072, 'src': 'embed', 'start': 4146.452, 'weight': 1, 'content': [{'end': 4157.818, 'text': 'Everything is an object which has some data and behavior Java can be easily extended as it is based on an object model and the last feature is robust.', 'start': 4146.452, 'duration': 11.366}, {'end': 4167.072, 'text': 'Java makes an effort to eliminate error-prone codes by emphasizing mainly on compile time, error checking and runtime checking.', 'start': 4158.725, 'duration': 8.347}], 'summary': 'Java is based on an object model, easily extended, and emphasizes compile time and runtime error checking.', 'duration': 20.62, 'max_score': 4146.452, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz04146452.jpg'}, {'end': 5036.858, 'src': 'embed', 'start': 5007.095, 'weight': 6, 'content': [{'end': 5010.499, 'text': 'greatest is equals to n1, else it should print.', 'start': 5007.095, 'duration': 3.404}, {'end': 5012.621, 'text': 'greatest is equals to n3.', 'start': 5010.499, 'duration': 2.122}, {'end': 5018.766, 'text': 'after the completion of the if condition, if neither of the statements which are provided in the if condition are true,', 'start': 5012.621, 'duration': 6.145}, {'end': 5022.088, 'text': 'then the control will flow into the else condition.', 'start': 5018.766, 'duration': 3.322}, {'end': 5032.577, 'text': 'inside the else condition we have an if condition which states if n2 is greater than or equal to n3, then it should print n2, else it should print n3.', 'start': 5022.088, 'duration': 10.489}, {'end': 5036.858, 'text': 'Now the final output will be generated along with a message.', 'start': 5033.676, 'duration': 3.182}], 'summary': 'Find greatest number among n1, n2, n3 and print the result.', 'duration': 29.763, 'max_score': 5007.095, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz05007095.jpg'}, {'end': 5186.171, 'src': 'embed', 'start': 5158.428, 'weight': 0, 'content': [{'end': 5162.931, 'text': 'Similarly, if the input value is 12, then it will execute December.', 'start': 5158.428, 'duration': 4.503}, {'end': 5171.217, 'text': 'And if neither of the cases match to the input, which I provide, then it will execute a default message, which will be invalid input.', 'start': 5163.431, 'duration': 7.786}, {'end': 5177.522, 'text': 'now let us try to execute this program and see how does it work.', 'start': 5171.756, 'duration': 5.766}, {'end': 5183.609, 'text': 'as you can see, the program has been successfully executed and it is asking me to enter any month.', 'start': 5177.522, 'duration': 6.087}, {'end': 5186.171, 'text': 'let us try to input three.', 'start': 5183.609, 'duration': 2.562}], 'summary': 'Program executed successfully, handling input values 12 and default message for invalid inputs.', 'duration': 27.743, 'max_score': 5158.428, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz05158428.jpg'}], 'start': 3643.72, 'title': 'Evolution, dominance, and demand of java', 'summary': 'Covers the evolution and relevance of java, its dominance in major companies, misconceptions, demand for java developers, salary trends, and essential skills, along with coverage of control statements and types of loops in java.', 'chapters': [{'end': 3755.328, 'start': 3643.72, 'title': 'Evolution of java programming language', 'summary': 'Discusses the evolution and relevance of java programming language, highlighting its usage in major big data frameworks, operating systems like android, and upgrades to address common reasons for disliking java, such as verbosity and code length.', 'duration': 111.608, 'highlights': ['Java is a powerful and dominant programming language, used in major big data frameworks like Hadoop, Spark, and Scala, as well as in operating systems like Android.', 'Upgrades in Java, such as the record method and long book function, address issues of verbosity and code length, allowing for more concise and readable code.', "Java's evolution is evident in its understanding of developers' needs and its ability to compress hundreds of lines of code into a minimal number."]}, {'end': 4195.738, 'start': 3756.048, 'title': 'Java: a dominant language', 'summary': 'Highlights the misconceptions about java being slow and heavy, its usage in major companies like airbnb and google, its dominance in data analytics, its features such as open-source, high-performance, security, platform independency, portability, object-oriented programming, and robustness, and its evolution through various versions from jdk 7 to jdk 13.', 'duration': 439.69, 'highlights': ["Java's usage in major companies like Airbnb and Google Major companies like Airbnb, Uber, Netflix, Spotify, Google, Instagram, and Facebook use Java, demonstrating its widespread industry adoption.", "Java's dominance in data analytics Java is utilized in big data analytics with popular frameworks like Spark, Flink, Hive, and Hadoop, making it a dominant language in the data analytics field.", "Java's features such as open-source, high-performance, security, platform independency, portability, object-oriented programming, and robustness Java is open-source, offers high performance with the just-in-time compiler, supports multithreading, provides security features, ensures platform independency and portability, follows object-oriented programming, and emphasizes robustness.", "Java's evolution through various versions from JDK 7 to JDK 13 Java has evolved through various versions from JDK 7 to JDK 13, showcasing its continuous improvement and updates over the years."]}, {'end': 4594.189, 'start': 4196.778, 'title': 'Java developer: demand, salary, and skills', 'summary': "Highlights the high demand for java developers, with salary trends ranging from 4 lakhs to 25 lakhs per annum in india, 25,000 pounds to 80,000 pounds per year in the uk, and 55,000 us dollars to 1 lakh 25,000 us dollars per annum in the usa, along with the essential beginner and advanced skills required for java developers in 2020 and the advantages for freshers, emphasizing java's ease of learning, object-oriented nature, and platform independence.", 'duration': 397.411, 'highlights': ['Java developers are in high demand, with salary trends ranging from 4 lakhs to 25 lakhs per annum in India, 25,000 pounds to 80,000 pounds per year in the UK, and 55,000 US dollars to 1 lakh 25,000 US dollars per annum in the USA. The demand for Java developers is high, with India offering salaries ranging from 4 lakhs to 25 lakhs per annum, the UK offering 25,000 pounds to 80,000 pounds per year, and the USA offering 55,000 US dollars to 1 lakh 25,000 US dollars per annum.', 'Essential beginner and advanced skills required for Java developers in 2020 are outlined, including knowledge of GSP servlets, object-oriented programming, design patterns, abstract classes, interfaces, constructors, file input/output operations, serialization collections, access specifiers, exception handling, generics, DevOps, microservices, and Spring Boot. Java developers in 2020 need to acquire essential beginner and advanced skills such as knowledge of GSP servlets, object-oriented programming, design patterns, abstract classes, interfaces, constructors, file input/output operations, serialization collections, access specifiers, exception handling, generics, DevOps, microservices, and Spring Boot.', 'Java offers advantages for freshers, including ease of learning, object-oriented nature, and platform independence, enabling seamless transition to other object-oriented programming languages like C++, C#, and Python. Java provides advantages for freshers, such as its ease of learning, object-oriented nature, and platform independence, facilitating a smooth transition to other object-oriented programming languages like C++, C#, and Python.']}, {'end': 5345.602, 'start': 4594.855, 'title': 'Java control statements', 'summary': 'Covers the usage and execution of various control statements in java, including if-else conditions, else if ladder, nested if conditions, ternary operator, switch conditional statements, and break statements, along with demonstrations and outputs for each.', 'duration': 750.747, 'highlights': ['The chapter includes examples of if-else conditions, else if ladder, nested if conditions, ternary operator, switch conditional statements, and break statements in Java. It covers the usage and execution of various control statements.', 'Demonstrates the usage of if-else conditions with examples of checking for positive/negative numbers, even/odd numbers, and leap year determination. It showcases the practical application of if-else conditions for different scenarios.', 'Illustrates the implementation of else if ladder with examples of selecting vehicle types based on user input. It demonstrates the usage of else if ladder for multiple conditional checks.', 'Explains the concept of nested if conditions with an example of finding the greatest number among three input values. It provides a clear demonstration of nested if conditions and their practical use case.', 'Showcases the usage of ternary operator to determine the greater number between two input values. It demonstrates the implementation and output of the ternary operator for conditional checks.', 'Demonstrates the application of switch conditional statements for executing different actions based on user input, with a default case for invalid inputs. It provides examples and outputs for switch conditional statements and their default case.', 'Illustrates the usage of break statements to terminate a loop based on a specific condition, with a practical example of array printing. It showcases the application of break statements for controlling loop execution.', 'Explains the concept and execution of for loop in Java, including the flow diagram and a practical example. It provides a detailed explanation and demonstration of for loop usage in Java.']}, {'end': 6026.338, 'start': 5346.229, 'title': 'Types of loops in programming', 'summary': 'Discusses for loop, enhanced for loop, nested for loop, while loop, do while loop, and infinite loop, showcasing examples and control flow diagrams to explain their functioning.', 'duration': 680.109, 'highlights': ['The chapter discusses the use of for loop, enhanced for loop, and nested for loop with examples and control flow diagrams. It explains the for loop, enhanced for loop, and nested for loop with examples and control flow diagrams.', 'It also covers the while loop, do while loop, and infinite loop with examples and control flow diagrams. The transcript covers the while loop, do while loop, and infinite loop with examples and control flow diagrams.', 'An example of using a for loop to display the names of employees is provided, with the loop successfully executing and displaying the output. An example of using a for loop to display employee names with successful execution is given.']}], 'duration': 2382.618, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz03643720.jpg', 'highlights': ["Java's dominance in major companies like Airbnb, Uber, Netflix, Spotify, Google, Instagram, and Facebook demonstrates its widespread industry adoption.", "Java's evolution through various versions from JDK 7 to JDK 13 showcases its continuous improvement and updates over the years.", 'The demand for Java developers is high, with India offering salaries ranging from 4 lakhs to 25 lakhs per annum, the UK offering 25,000 pounds to 80,000 pounds per year, and the USA offering 55,000 US dollars to 1 lakh 25,000 US dollars per annum.', 'Java developers in 2020 need to acquire essential beginner and advanced skills such as knowledge of GSP servlets, object-oriented programming, design patterns, abstract classes, interfaces, constructors, file input/output operations, serialization collections, access specifiers, exception handling, generics, DevOps, microservices, and Spring Boot.', 'Java provides advantages for freshers, such as its ease of learning, object-oriented nature, and platform independence, facilitating a smooth transition to other object-oriented programming languages like C++, C#, and Python.', 'The chapter includes examples of if-else conditions, else if ladder, nested if conditions, ternary operator, switch conditional statements, and break statements in Java, covering the usage and execution of various control statements.', 'The chapter discusses the use of for loop, enhanced for loop, and nested for loop with examples and control flow diagrams, as well as the while loop, do while loop, and infinite loop with examples and control flow diagrams.']}, {'end': 8397.072, 'segs': [{'end': 6862.402, 'src': 'embed', 'start': 6831.802, 'weight': 4, 'content': [{'end': 6835.765, 'text': 'and this guy reference variable is giving you this 7852E922..', 'start': 6831.802, 'duration': 3.963}, {'end': 6843.172, 'text': 'So we get 7 8 5 2 e 9 2 2 as a hash code.', 'start': 6838.089, 'duration': 5.083}, {'end': 6846.033, 'text': 'Now, this might vary from system to system, right?', 'start': 6843.752, 'duration': 2.281}, {'end': 6850.496, 'text': 'So we say product is a reference variable, right?', 'start': 6847.294, 'duration': 3.202}, {'end': 6855.598, 'text': 'So product is a reference variable, not an object.', 'start': 6851.156, 'duration': 4.442}, {'end': 6858.86, 'text': 'It is pointing to the object which is created in the memory in the heat.', 'start': 6855.718, 'duration': 3.142}, {'end': 6862.402, 'text': 'So next is writing data in object.', 'start': 6859.38, 'duration': 3.022}], 'summary': 'Reference variable 7852e922 is a hash code. product is a reference variable pointing to the object in memory.', 'duration': 30.6, 'max_score': 6831.802, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz06831802.jpg'}, {'end': 6995.263, 'src': 'embed', 'start': 6966.818, 'weight': 2, 'content': [{'end': 6973.339, 'text': "Product 2 dot price is let's say 5000.", 'start': 6966.818, 'duration': 6.521}, {'end': 6975.44, 'text': 'So this is writing the data directly.', 'start': 6973.339, 'duration': 2.101}, {'end': 6976.718, 'text': 'Sorry my bad.', 'start': 6976.038, 'duration': 0.68}, {'end': 6978.539, 'text': 'So this is integer.', 'start': 6976.738, 'duration': 1.801}, {'end': 6983.78, 'text': 'So you will say product to dot show the product details.', 'start': 6979.019, 'duration': 4.761}, {'end': 6988.862, 'text': 'So just gonna do an empty print line here for the correct output.', 'start': 6984.52, 'duration': 4.342}, {'end': 6991.942, 'text': 'So what you see is product object constructed.', 'start': 6989.602, 'duration': 2.34}, {'end': 6995.263, 'text': 'We are not writing the data using any method.', 'start': 6992.483, 'duration': 2.78}], 'summary': 'Product 2 price: 5000, direct data writing, integer, product details displayed.', 'duration': 28.445, 'max_score': 6966.818, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz06966818.jpg'}, {'end': 7527.239, 'src': 'embed', 'start': 7460.615, 'weight': 0, 'content': [{'end': 7464.236, 'text': 'that is inherited into the child and now in the child.', 'start': 7460.615, 'duration': 3.621}, {'end': 7467.798, 'text': 'we have the same method coming up again.', 'start': 7464.236, 'duration': 3.562}, {'end': 7469.238, 'text': 'why we did this?', 'start': 7467.798, 'duration': 1.44}, {'end': 7472.92, 'text': 'because we wanted to set the data for the additional attributes.', 'start': 7469.238, 'duration': 3.682}, {'end': 7483.024, 'text': 'So this is known as method over loading same method name with different inputs.', 'start': 7473.56, 'duration': 9.464}, {'end': 7488.402, 'text': 'So what I can do now is why to access the parents method here.', 'start': 7484.318, 'duration': 4.084}, {'end': 7495.328, 'text': 'I can have my own method mobile dot set the product details with the PID.', 'start': 7488.982, 'duration': 6.346}, {'end': 7498.07, 'text': "Let's say 301 name.", 'start': 7495.488, 'duration': 2.582}, {'end': 7501.433, 'text': "Let's say iPhone X price.", 'start': 7498.13, 'duration': 3.303}, {'end': 7503.935, 'text': "Let's say 70,000 OS.", 'start': 7501.493, 'duration': 2.442}, {'end': 7506.517, 'text': "Let's say iOS RAM.", 'start': 7504.235, 'duration': 2.282}, {'end': 7509.159, 'text': "Let's say for SD card size.", 'start': 7506.557, 'duration': 2.602}, {'end': 7511.832, 'text': "Let's see 128.", 'start': 7509.28, 'duration': 2.552}, {'end': 7516.334, 'text': "And thereafter I'm going to say mobile dot, show the product details.", 'start': 7511.832, 'duration': 4.502}, {'end': 7521.597, 'text': 'now, when you run this code, guys, what we see is it says data written in product object.', 'start': 7516.334, 'duration': 5.263}, {'end': 7527.239, 'text': 'So what I can do is I can just manipulate this and I can say data written in mobile object.', 'start': 7521.997, 'duration': 5.242}], 'summary': 'Demonstrating method overloading with different inputs to set product details.', 'duration': 66.624, 'max_score': 7460.615, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz07460615.jpg'}, {'end': 7594.344, 'src': 'embed', 'start': 7559.301, 'weight': 3, 'content': [{'end': 7574.9, 'text': 'But here we have same inputs Two methods, one from parent, one in child, and we have same signatures.', 'start': 7559.301, 'duration': 15.599}, {'end': 7579.481, 'text': 'When I say same signatures, it means they have same input details.', 'start': 7576.4, 'duration': 3.081}, {'end': 7582.842, 'text': "So what I'll do is I'll extend the data here.", 'start': 7580.301, 'duration': 2.541}, {'end': 7588.183, 'text': "So we'll have OS, we'll have RAM, and we'll have SD card.", 'start': 7583.642, 'duration': 4.541}, {'end': 7594.344, 'text': "So we'll have this OS, RAM, and SD card size.", 'start': 7588.983, 'duration': 5.361}], 'summary': 'Two methods with same input details, extending data with os, ram, and sd card size.', 'duration': 35.043, 'max_score': 7559.301, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz07559301.jpg'}], 'start': 6027.799, 'title': 'Object-oriented programming concepts', 'summary': 'Explains object-oriented programming fundamentals, inheritance, and reusability, with a focus on key concepts such as encapsulation, abstraction, polymorphism, and inheritance, and practical examples in java abstract classes.', 'chapters': [{'end': 6391.091, 'start': 6027.799, 'title': 'Object-oriented programming fundamentals', 'summary': 'Explains the fundamentals of object-oriented programming, highlighting the concepts of objects, classes, properties, behavior, differences from procedural programming, and the four major building blocks: encapsulation, abstraction, polymorphism, and inheritance.', 'duration': 363.292, 'highlights': ['The chapter explains the fundamentals of object-oriented programming It provides an overview of the fundamentals of object-oriented programming, emphasizing the importance of objects, classes, and the core principles.', 'The concept of objects and classes is described It defines objects as real-world entities with state and behavior, and classes as blueprints that define the structure and behavior of objects. It also illustrates the relationship between objects and classes.', 'The differences between object-oriented and procedural programming are outlined It compares object-oriented programming with procedural programming, highlighting differences in the approach, modularization, access modifiers, and security features.', 'The four major building blocks of object-oriented programming are introduced It introduces the four fundamental concepts of encapsulation, abstraction, polymorphism, and inheritance, emphasizing their significance as the pillars of object-oriented programming.', 'Inheritance is explained as a key concept in object-oriented programming It elaborates on inheritance as a mechanism for acquiring properties of one object by another, establishing a parent-child relationship and demonstrating the concept through the example of animal classification.']}, {'end': 6995.263, 'start': 6391.912, 'title': 'Object inheritance and reusability', 'summary': 'Explains the concept of object inheritance and reusability in object-oriented programming, demonstrating the benefits of extending classes and reusing common attributes, with a demonstration of creating and manipulating objects in java.', 'duration': 603.351, 'highlights': ['The chapter explains the concept of object inheritance and reusability in object-oriented programming. Object inheritance and reusability, demonstration of extending classes and reusing common attributes.', 'The benefits of extending classes and reusing common attributes are demonstrated using an example of an e-commerce solution, with products like LED TV and mobile. Demonstration of extending classes and reusing common attributes in an e-commerce solution, example of LED TV and mobile products.', 'The process of creating and manipulating objects in Java is demonstrated, showcasing the use of constructors, methods, and attributes. Demonstration of creating and manipulating objects in Java, use of constructors, methods, and attributes.']}, {'end': 7392.184, 'start': 6995.463, 'title': 'Inheritance in oop', 'summary': 'Discusses the concept of inheritance in object-oriented programming, emphasizing the use of private attributes, setters, and getters to restrict direct access to data, and demonstrates the construction and access of parent and child objects, highlighting the flow of data and the acquisition of attributes from the parent to the child.', 'duration': 396.721, 'highlights': ["The chapter emphasizes the use of private attributes to restrict direct data access, exemplified by marking the product ID as private, leading to an error when attempting to access it directly. The discussion highlights the importance of using private attributes to limit direct data access, illustrated by the error encountered when attempting to access the private attribute 'product ID' directly.", 'The concept of setters and getters is explained, showcasing their role in providing an indirect way to access private attributes, facilitating the setting and retrieval of the product ID using the setPID and getPID methods. The chapter elaborates on the purpose of setters and getters, demonstrating their role in enabling indirect access to private attributes, specifically showcasing the setPID and getPID methods for setting and retrieving the product ID.', 'The construction and access of parent and child objects in inheritance are demonstrated, emphasizing the rule that the parent object is constructed before the child object, and showcasing the acquisition of attributes from the parent to the child. The transcript details the construction and access of parent and child objects in inheritance, highlighting the sequence where the parent object is constructed before the child object, and showcasing the acquisition of attributes from the parent to the child.']}, {'end': 7979.206, 'start': 7392.244, 'title': 'Oops concepts overview', 'summary': 'Explains the concepts of inheritance, method overloading, method overriding, polymorphism, abstraction, and encapsulation in object-oriented programming, emphasizing key points such as inheritance types, polymorphism forms, and encapsulation benefits.', 'duration': 586.962, 'highlights': ['The chapter introduces the concepts of inheritance, method overloading, method overriding, polymorphism, abstraction, and encapsulation in object-oriented programming. It covers fundamental concepts essential for understanding OOP.', 'The chapter explains the different types of inheritance, including single level, multi-level, and hierarchical inheritance, and emphasizes that multiple inheritance is not supported in Java. It provides a comprehensive overview of inheritance types and their limitations in Java.', 'The chapter discusses polymorphism, both compile-time (overloading) and runtime (overriding), and uses the analogy of mothers handling various roles as an example of polymorphism. It clarifies the concept of polymorphism with relatable examples and differentiates between compile-time and runtime polymorphism.', 'The chapter explains abstraction using abstract classes and interfaces and highlights that an interface enables multiple inheritance and loose coupling. It elucidates the role of abstract classes and interfaces in achieving abstraction and design flexibility.', "The chapter emphasizes encapsulation's role in privatizing data and achieving data hiding for security purposes, requiring the use of getters and setters to access private data. It underscores the importance of encapsulation in ensuring data security and the need for access control methods like getters and setters."]}, {'end': 8397.072, 'start': 7985.09, 'title': 'Java abstract classes', 'summary': 'Discusses abstract classes in java, covering their purpose, rules for usage, and syntax, and provides practical examples to illustrate their implementation and differences from interfaces.', 'duration': 411.982, 'highlights': ['abstract classes are designed to provide a default functionality of the defined method for all the subclasses Abstract classes provide default functionality for defined methods for all subclasses.', 'abstract classes provide a template for future specific classes and allow code reusability Abstract classes provide a template for future specific classes and enable code reusability.', 'abstract classes help achieve loose coupling between class members and methods and support dynamic method resolution Abstract classes aid in achieving loose coupling and dynamic method resolution.', 'Rules for using abstract classes include: cannot be instantiated, can accommodate final methods, must be declared using the abstract keyword, can have both abstract and non-abstract methods, constructors, and static methods Rules for using abstract classes: cannot be instantiated, can accommodate final methods, must be declared with the abstract keyword, can have both abstract and non-abstract methods, constructors, and static methods.', 'The syntax for declaring an abstract class and method in Java is discussed, along with practical examples illustrating the implementation and differences from interfaces Discussed the syntax for declaring abstract classes and methods in Java, along with practical examples demonstrating their implementation and differences from interfaces.']}], 'duration': 2369.273, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz06027799.jpg', 'highlights': ['The chapter introduces the concepts of inheritance, method overloading, method overriding, polymorphism, abstraction, and encapsulation in object-oriented programming.', "The chapter emphasizes encapsulation's role in privatizing data and achieving data hiding for security purposes, requiring the use of getters and setters to access private data.", 'The chapter explains the different types of inheritance, including single level, multi-level, and hierarchical inheritance, and emphasizes that multiple inheritance is not supported in Java.', 'The chapter explains abstraction using abstract classes and interfaces and highlights that an interface enables multiple inheritance and loose coupling.', 'The chapter discusses polymorphism, both compile-time (overloading) and runtime (overriding), and uses the analogy of mothers handling various roles as an example of polymorphism.']}, {'end': 9505.203, 'segs': [{'end': 9510.427, 'src': 'embed', 'start': 9484.13, 'weight': 0, 'content': [{'end': 9488.612, 'text': 'final is used to apply restrictions on class methods and variables,', 'start': 9484.13, 'duration': 4.482}, {'end': 9497.438, 'text': 'but finally is used to place an important code and finalize is used to perform cleanup processing just before the object is garbage collected.', 'start': 9488.612, 'duration': 8.826}, {'end': 9505.203, 'text': 'coming to final, the final class cannot be inherited and the final method cannot be overridden and the final variable cannot be changed.', 'start': 9497.438, 'duration': 7.765}, {'end': 9510.427, 'text': 'Coming to finally it will be executed whether the exception is handled or not.', 'start': 9505.825, 'duration': 4.602}], 'summary': 'Final, finally, and finalize are used for different purposes in java, with final preventing inheritance and overriding, finally executing regardless of exception handling.', 'duration': 26.297, 'max_score': 9484.13, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz09484130.jpg'}], 'start': 8397.572, 'title': 'Java exception handling', 'summary': "Covers java exception handling, including differences between errors and exceptions, exception hierarchy, java virtual machine's handling of exceptions, and types of exceptions in java. it also discusses methods of exceptions in java, covering try, nested try, catch, multi-catch, finally, throw, and throws, highlighting their usage and differences, along with examples of nested try and multi-catch blocks, and the distinction between throw and throws.", 'chapters': [{'end': 8493.825, 'start': 8397.572, 'title': 'Abstract class vs interface differences', 'summary': 'Discusses the differences between abstract classes and interfaces, highlighting that abstract classes can include both abstract and non-abstract methods, while interfaces can only have abstract methods. it also covers differences in variable types, implementation, extending, and member visibility.', 'duration': 96.253, 'highlights': ['The first difference between abstract class and interface is abstract class can include abstract as well as non-abstract methods, while interface can have only abstract methods.', 'Abstract class includes non-final variables, while interface can include only final variables.', 'Abstract classes can include static, non-static, final and non-final variables, whereas interfaces can include only static and final variables.', 'Abstract classes can implement an interface, while interface cannot implement an abstract class.', 'Abstract classes can extend Java classes and interfaces, while interface can extend only an interface.']}, {'end': 8990.119, 'start': 8494.364, 'title': 'Java exception handling', 'summary': "Introduces java exception handling mechanism, highlighting the difference between errors and exceptions, exception hierarchy, java virtual machine's handling of exceptions, and the types of exceptions in java.", 'duration': 495.755, 'highlights': ['Java virtual machine handles exceptions by creating an exception object and handing it off to the runtime system, containing name, description, and current program state, and using try-catch-finally methods to handle them. Whenever inside a method, if an exception has occurred, then the method creates an object known as exception object and hands it off to the runtime system, and this exception object contains name and description of the exception and also the current state of the program where exception has occurred, and creating the exception object and handling it to the runtime system is called throwing an exception then using try catch finally methods. These exceptions can be handled.', 'Built-in exceptions in Java libraries include arithmetic exception, array index out-of-bounds exception, class not found exception, IO exception, runtime exception, and number format exception, suitable to explain certain error situations. These are the exceptions which are available in Java libraries and they are suitable to explain certain error situations like arithmetic exception array index. out-of-bound exception class not found. IO exception runtime. exception number format, Etc.', 'Errors are impossible to recover, while exceptions can be recovered by handling them, and errors are caused by the environment on which the application is running, whereas exceptions are caused by the application itself. Errors are impossible to recover, but exception can be recovered by handling them. Whereas errors are caused by the environment on which the application is running. So these are the key points of difference between errors and exceptions.', 'Checked exceptions happen at compile time and cannot be ignored, while unchecked exceptions are runtime exceptions and are built-in exceptions in Java. Simple terms, Exceptions that happen at compile time are checked.exceptions like IO exceptions, Etc and runtime exceptions are called unchecked exceptions, like divide by 0, array out of bound, null pointer exception, Etc.']}, {'end': 9505.203, 'start': 8990.84, 'title': 'Java exceptions overview', 'summary': 'Discusses the methods of exceptions in java, covering try, nested try, catch, multi-catch, finally, throw, and throws, highlighting their usage and differences, along with examples of nested try and multi-catch blocks, and the distinction between throw and throws.', 'duration': 514.363, 'highlights': ['The chapter covers the methods of exceptions in Java, including try, nested try, catch, multi-catch, finally, throw, and throws. It explains the various methods of exceptions, such as try, nested try, catch, multi-catch, finally, throw, and throws.', 'Examples of nested try and multi-catch blocks are provided, demonstrating their usage in handling exceptions. It provides examples of nested try and multi-catch blocks, demonstrating their usage in handling exceptions.', 'The distinction between throw and throws is explained, highlighting that throw is used to throw an exception explicitly, while throws is used to declare an exception. It explains the difference between throw and throws, highlighting that throw is used to throw an exception explicitly, while throws is used to declare an exception.']}], 'duration': 1107.631, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz08397572.jpg', 'highlights': ['Java virtual machine handles exceptions by creating an exception object and handing it off to the runtime system, containing name, description, and current program state, and using try-catch-finally methods to handle them.', 'Built-in exceptions in Java libraries include arithmetic exception, array index out-of-bounds exception, class not found exception, IO exception, runtime exception, and number format exception, suitable to explain certain error situations.', 'Checked exceptions happen at compile time and cannot be ignored, while unchecked exceptions are runtime exceptions and are built-in exceptions in Java.', 'The chapter covers the methods of exceptions in Java, including try, nested try, catch, multi-catch, finally, throw, and throws.', 'Examples of nested try and multi-catch blocks are provided, demonstrating their usage in handling exceptions.', 'The distinction between throw and throws is explained, highlighting that throw is used to throw an exception explicitly, while throws is used to declare an exception.']}, {'end': 11262.945, 'segs': [{'end': 9862.01, 'src': 'embed', 'start': 9835.837, 'weight': 0, 'content': [{'end': 9841.76, 'text': 'The functionalities defined for a dial watch are display date, display day and display time.', 'start': 9835.837, 'duration': 5.923}, {'end': 9847.301, 'text': 'Similarly, let us get into the advanced version of the watch which would be our digital watch.', 'start': 9842.538, 'duration': 4.763}, {'end': 9850.923, 'text': 'The functionalities required for the digital watch are as follows.', 'start': 9847.861, 'duration': 3.062}, {'end': 9857.527, 'text': 'Display day, display date, display time, light, set alarm and set timer.', 'start': 9851.504, 'duration': 6.023}, {'end': 9862.01, 'text': 'As you can see three functions from the dial watch are repeating here.', 'start': 9858.368, 'duration': 3.642}], 'summary': 'Functions for digital watch: display day, date, time, light, alarm, timer.', 'duration': 26.173, 'max_score': 9835.837, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz09835837.jpg'}, {'end': 10283.124, 'src': 'embed', 'start': 10251.576, 'weight': 2, 'content': [{'end': 10260.919, 'text': 'Hierarchical inheritance is a procedure where we will be having multiple child classes and all the child classes will be inheriting the properties from the major parent class.', 'start': 10251.576, 'duration': 9.343}, {'end': 10264.14, 'text': 'Here let us assume an example of a restaurant.', 'start': 10261.639, 'duration': 2.501}, {'end': 10266.48, 'text': 'We shall have four different restaurants here.', 'start': 10264.54, 'duration': 1.94}, {'end': 10273.642, 'text': 'The first one would be a parent restaurant and the other three will be Chinese restaurant, Italian restaurant and Mexican restaurant.', 'start': 10266.84, 'duration': 6.802}, {'end': 10280.204, 'text': 'The parent restaurant will be having various types of ingredients which the child classes might need in their dishes as well.', 'start': 10274.282, 'duration': 5.922}, {'end': 10283.124, 'text': 'Let us see this practically to understand this in a better way.', 'start': 10280.782, 'duration': 2.342}], 'summary': 'Hierarchical inheritance involves multiple child classes inheriting properties from a parent class, exemplified with a restaurant scenario.', 'duration': 31.548, 'max_score': 10251.576, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz010251576.jpg'}, {'end': 10356.471, 'src': 'embed', 'start': 10328.513, 'weight': 1, 'content': [{'end': 10330.774, 'text': 'they might require cheese and vegetable stew.', 'start': 10328.513, 'duration': 2.261}, {'end': 10335.355, 'text': 'So how does all these three restaurants get their ingredients from? Simple.', 'start': 10331.394, 'duration': 3.961}, {'end': 10341.441, 'text': 'They apply hierarchical inheritance and inherit all the properties from the parent class and cook their special dishes.', 'start': 10335.737, 'duration': 5.704}, {'end': 10344.463, 'text': 'Now, let us run this program and see how does it work.', 'start': 10342.041, 'duration': 2.422}, {'end': 10353.969, 'text': 'As you can see all the child classes have successfully inherited their parent and the data is also been displayed.', 'start': 10349.046, 'duration': 4.923}, {'end': 10356.471, 'text': 'The first one is the Italian restaurant.', 'start': 10354.53, 'duration': 1.941}], 'summary': 'Restaurants use hierarchical inheritance to get ingredients and cook dishes.', 'duration': 27.958, 'max_score': 10328.513, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz010328513.jpg'}], 'start': 9505.825, 'title': 'Java exception handling, inheritance, and polymorphism', 'summary': 'Covers java exception handling, including user-defined exceptions and inheritance, highlighting the importance of inheritance in reducing code redundancy and improving functionality. it also discusses different types of inheritance, method overloading, and method overriding, demonstrating practical examples and code demonstrations.', 'chapters': [{'end': 10014.254, 'start': 9505.825, 'title': 'Java exception handling and inheritance', 'summary': 'Covers the creation of user-defined exceptions, handling exceptions using catch blocks, and passing exceptions in java. it also explains the concept of inheritance and its importance in reducing code redundancy and improving code functionality.', 'duration': 508.429, 'highlights': ['The chapter covers the creation of user-defined exceptions, handling exceptions using catch blocks, and passing exceptions in Java. It explains the process of creating user-defined exceptions, throwing and handling exceptions using catch blocks, and passing exceptions in Java programs.', 'It also explains the concept of inheritance and its importance in reducing code redundancy and improving code functionality. The importance of inheritance in reducing code redundancy, improving code functionality, and the theoretical understanding of inheritance is explained.']}, {'end': 10528.601, 'start': 10015.074, 'title': 'Java inheritance types', 'summary': 'Discusses single, multi-level, hierarchical, and hybrid inheritance in java, explaining each with practical examples and code demonstrations, highlighting the concept of inheritance and interface, and covering method overloading and overriding.', 'duration': 513.527, 'highlights': ['Java supports four types of inheritance: single, multi-level, hierarchical, and hybrid inheritance. Java supports four types of inheritance: single, multi-level, hierarchical, and hybrid inheritance.', "Single inheritance involves one child class inheriting from one parent class, demonstrated through a 'person' and 'employee' class example. Single inheritance involves one child class inheriting from one parent class, demonstrated through a 'person' and 'employee' class example.", "Multi-level inheritance allows multiple child classes to inherit properties from preceding parent classes, demonstrated through a 'calculator', 'advanced', and 'area' class example. Multi-level inheritance allows multiple child classes to inherit properties from preceding parent classes, demonstrated through a 'calculator', 'advanced', and 'area' class example.", "Hierarchical inheritance involves multiple child classes inheriting properties from a major parent class, exemplified using a 'restaurant' and its child classes example. Hierarchical inheritance involves multiple child classes inheriting properties from a major parent class, exemplified using a 'restaurant' and its child classes example.", 'Hybrid inheritance is a combination of other inheritances, such as multi-level and hierarchical inheritance. Hybrid inheritance is a combination of other inheritances, such as multi-level and hierarchical inheritance.', 'Java does not support multiple inheritance directly but can achieve similar behavior through interfaces. Java does not support multiple inheritance directly but can achieve similar behavior through interfaces.', "The chapter covers the concepts of 'is a' and 'has a' relationships in inheritance and interface, demonstrated using a BMW car example. The chapter covers the concepts of 'is a' and 'has a' relationships in inheritance and interface, demonstrated using a BMW car example.", 'The chapter also discusses method overloading and method overriding in Java. The chapter also discusses method overloading and method overriding in Java.']}, {'end': 10768.659, 'start': 10529.522, 'title': 'Method overloading in java', 'summary': 'Explains method overloading in java, covering different types of overloading and practical examples, demonstrating the execution and type promotion, with no promotion in case of matching attributes.', 'duration': 239.137, 'highlights': ['The chapter explains three types of method overloading in Java, including different number of parameters, different types of data types, and variation in the sequence of parameters, with practical examples. (Relevance: 5)', 'Practical examples are provided for each type of method overloading, demonstrating the inheritance of methods from parent classes, execution of programs, and successful display of data. (Relevance: 4)', 'The concept of type promotion is illustrated, where the interpreter implicitly promotes the data type of the object from float to double, with a practical example demonstrating the execution of the program. (Relevance: 3)', 'The absence of type promotion is demonstrated through an example where the display function with matching attributes does not accept promotion, and the output reflects no type promotion. (Relevance: 2)']}, {'end': 11262.945, 'start': 10768.659, 'title': 'Method overriding in java', 'summary': 'Discusses method overriding, with rules and practical examples, covering the concept of polymorphism in java and two types of polymorphism, static and dynamic, with relevant code examples.', 'duration': 494.286, 'highlights': ['The chapter discusses method overriding, with rules and practical examples Method overriding is explained with rules and practical examples, including the matching of argument lists and the less restrictive access modifiers in the child class compared to the parent class.', 'The concept of polymorphism in Java and practical examples The concept of polymorphism is illustrated using real-world examples such as a chameleon changing its color and a person playing various roles, showcasing the ability of Java objects to take multiple forms.', 'Two types of polymorphism, static and dynamic, explained with relevant code examples The two types of polymorphism, static and dynamic, are discussed, with method overloading presented as an example of compile-time polymorphism through code examples.']}], 'duration': 1757.12, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz09505825.jpg', 'highlights': ['The chapter covers the creation of user-defined exceptions, handling exceptions using catch blocks, and passing exceptions in Java.', 'Java supports four types of inheritance: single, multi-level, hierarchical, and hybrid inheritance.', 'The chapter explains three types of method overloading in Java, including different number of parameters, different types of data types, and variation in the sequence of parameters, with practical examples.', 'The chapter discusses method overriding, with rules and practical examples Method overriding is explained with rules and practical examples, including the matching of argument lists and the less restrictive access modifiers in the child class compared to the parent class.']}, {'end': 12637.747, 'segs': [{'end': 12107.596, 'src': 'embed', 'start': 12080.513, 'weight': 2, 'content': [{'end': 12086.838, 'text': 'I have declared a new package by the name definition and, followed by that, have declared my first enum, which is bike,', 'start': 12080.513, 'duration': 6.325}, {'end': 12092.223, 'text': 'and this bike variable is storing three different values, which is per charge, KTM and Yamaha.', 'start': 12086.838, 'duration': 5.385}, {'end': 12097.968, 'text': 'So all these three values which are stored in this variable bike will be constant and will not be changed.', 'start': 12092.623, 'duration': 5.345}, {'end': 12102.892, 'text': 'But you can also add in some new values into your enum which will not create much difference.', 'start': 12098.308, 'duration': 4.584}, {'end': 12107.596, 'text': 'But if you try to remove any values, then you might have a compilation error.', 'start': 12103.032, 'duration': 4.564}], 'summary': "Declared 'definition' package with 'bike' enum storing 3 constant values: per charge, ktm, and yamaha. adding new values allowed, but removal may cause compilation error.", 'duration': 27.083, 'max_score': 12080.513, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz012080513.jpg'}, {'end': 12512.809, 'src': 'embed', 'start': 12468.757, 'weight': 0, 'content': [{'end': 12473.199, 'text': 'Now with this let us execute the last method of enums which happens to be ordinal method.', 'start': 12468.757, 'duration': 4.442}, {'end': 12482.449, 'text': 'The Java interpreter adds the ordinal method internally when it creates an enum the ordinal method returns the index of the enum value.', 'start': 12475.1, 'duration': 7.349}, {'end': 12487.795, 'text': 'This is completely similar to the values method yet, which will execute one more example to understand this.', 'start': 12482.829, 'duration': 4.966}, {'end': 12491.625, 'text': 'So this particular example is based on ordinal method,', 'start': 12488.604, 'duration': 3.021}, {'end': 12497.666, 'text': "and here I've defined two different enums the first enum happens to be fruits and the second enum happens to be vegetables.", 'start': 12491.625, 'duration': 6.041}, {'end': 12502.487, 'text': 'So both these enums have different values stored in them and from my main method.', 'start': 12498.066, 'duration': 4.421}, {'end': 12507.367, 'text': "I'll be trying to access all the elements present in the first enum, which is fruit,", 'start': 12502.787, 'duration': 4.58}, {'end': 12512.809, 'text': "and after that I'll be trying to detect the position of Apple present in the first enum, which is fruits.", 'start': 12507.367, 'duration': 5.442}], 'summary': 'The ordinal method in java enums returns the index of enum values.', 'duration': 44.052, 'max_score': 12468.757, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz012468757.jpg'}], 'start': 11264.206, 'title': 'Dynamic polymorphism, method overriding, and enum advantages', 'summary': 'Covers dynamic polymorphism, method overriding, and enum advantages in java, demonstrating a sample program for successful execution, discussing subclass-specific methods and characteristics, and explaining enum basics, syntax, use cases, and practical examples, including a rock-paper-scissors game implementation.', 'chapters': [{'end': 11372.201, 'start': 11264.206, 'title': 'Dynamic polymorphism and method overriding', 'summary': 'Covers dynamic polymorphism, explaining how method overriding enables it, and demonstrates a sample program where a parent class method and a child class method are called, resulting in successful execution of both methods.', 'duration': 107.995, 'highlights': ['Dynamic polymorphism, achieved through method overriding, allows a subclass to provide specific implementation of a method from its super class.', "The program demonstrates the successful execution of both the parent class method 'move' (displaying the message 'animals can move') and the child class method 'move' (displaying the message 'dogs can walk and run').", 'Dynamic polymorphism is a process where a call to an overridden method is resolved at runtime, and is often referred to as runtime polymorphism.']}, {'end': 12410.483, 'start': 11372.781, 'title': 'Advantages of dynamic polymorphism and enum in java', 'summary': 'Discusses the advantages of dynamic polymorphism, including method overriding and subclass-specific methods, as well as various characteristics of polymorphism in java such as coercion, operator overloading, and polymorphic parameters. it also covers the usage and benefits of enum in java, including its syntax, practical examples, and methods like values and values of.', 'duration': 1037.702, 'highlights': ['Advantages of Dynamic Polymorphism The chapter discusses the advantages of dynamic polymorphism, including method overriding and subclass-specific methods. It highlights how dynamic polymorphism allows Java to support method overriding, which is central for runtime polymorphism, and it also enables subclasses to define specific implementation for methods.', "Characteristics of Polymorphism in Java The chapter covers various characteristics of polymorphism in Java, including coercion, operator overloading, and polymorphic parameters. It explains how polymorphic coercion deals with implicit type conversion, and operator overloading refers to the polymorphic characteristic of the same symbol having different meanings depending on the context. Additionally, it discusses polymorphic parameters and the associated problems like variable hiding and the use of the 'this' keyword.", 'Usage and Benefits of Enum in Java The chapter explores the usage and benefits of enum in Java, including its syntax, practical examples, and methods like values and values of. It explains how enum provides a way to define a fixed set of constants or variables that do not tend to change, and it demonstrates practical examples of defining enum, using enum in switch case, inheritance with enum, enum with customized values, and enum with if-else statements. Furthermore, it details the methods available for enum, such as values and values of.']}, {'end': 12637.747, 'start': 12411.511, 'title': 'Enums in java: basics and use cases', 'summary': 'Covers the basics of enums in java, including examples of using the values and ordinal methods, advantages of using enums, and a use case of implementing a rock-paper-scissors game. it also includes cost data for different mobiles and detailed explanations of the methods.', 'duration': 226.236, 'highlights': ['The cost of Samsung phone is $1099, Apple has $1250, and Google has $1325. The values and cost of different mobiles are provided, with Samsung priced at $1099, Apple at $1250, and Google at $1325.', 'The ordinal method returns the index of the enum value. The ordinal method in enums returns the index of the enum value, demonstrating the internal behavior of enums in Java.', 'Enum in Java improves type safety, is easily usable in switch cases, and can implement interfaces. The major advantages of using enums in Java are highlighted, including improved type safety, easy usability in switch cases, and the ability to implement interfaces.', 'Implementation of a rock-paper-scissors game using enum for hand signs. A use case of implementing a rock-paper-scissors game using enums is demonstrated, including the evaluation of choices and declaration of the winner.']}], 'duration': 1373.541, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz011264206.jpg', 'highlights': ['Dynamic polymorphism allows a subclass to provide specific implementation of a method from its super class.', "The program demonstrates the successful execution of both the parent class method 'move' and the child class method 'move'.", 'Dynamic polymorphism is a process where a call to an overridden method is resolved at runtime.']}, {'end': 14303.733, 'segs': [{'end': 13178.094, 'src': 'embed', 'start': 13140.217, 'weight': 2, 'content': [{'end': 13144.538, 'text': 'Now we got this guy called population.', 'start': 13140.217, 'duration': 4.321}, {'end': 13152.281, 'text': "So if you see this state population, so I'll not use the term state population, rather I'll say country population.", 'start': 13144.918, 'duration': 7.363}, {'end': 13154.983, 'text': 'So this guy contains 785E922.', 'start': 13153.702, 'duration': 1.281}, {'end': 13168.872, 'text': 'Right so country population is containing some hexadecimal over here.', 'start': 13160.049, 'duration': 8.823}, {'end': 13178.094, 'text': '7852922 So it can be any number which is coming for us over here because it is not generated by us now in the heap area.', 'start': 13168.892, 'duration': 9.202}], 'summary': 'Country population is 785e922, represented in hexadecimal format.', 'duration': 37.877, 'max_score': 13140.217, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz013140217.jpg'}, {'end': 13562.792, 'src': 'embed', 'start': 13532.113, 'weight': 0, 'content': [{'end': 13540.999, 'text': 'So now this write operation has become the update operation, so we can use 1d array anytime.', 'start': 13532.113, 'duration': 8.886}, {'end': 13547.264, 'text': 'with the help of indexes we can perform a read operation on a single element.', 'start': 13540.999, 'duration': 6.265}, {'end': 13550.226, 'text': 'We can perform read on all the elements.', 'start': 13547.384, 'duration': 2.842}, {'end': 13558.409, 'text': 'We can even perform a write or update operation, but everything happens with the help of indexing right?', 'start': 13550.865, 'duration': 7.544}, {'end': 13562.792, 'text': 'So there is one more way to read the array in Java.', 'start': 13558.75, 'duration': 4.042}], 'summary': 'In java, arrays can be read and updated using indexes.', 'duration': 30.679, 'max_score': 13532.113, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz013532113.jpg'}, {'end': 14303.733, 'src': 'embed', 'start': 14279.751, 'weight': 1, 'content': [{'end': 14287.794, 'text': 'So here, if you will try to read this guy, so if you try to read ARR, so any guesses, guys, what will be the output when you read ARR?', 'start': 14279.751, 'duration': 8.043}, {'end': 14292.276, 'text': 'So what do you think, what will be the output for the ARR?', 'start': 14287.814, 'duration': 4.462}, {'end': 14295.497, 'text': 'right?. So output for the ARR would be all zeros.', 'start': 14292.276, 'duration': 3.221}, {'end': 14303.733, 'text': "Right? So when you give the sizes you get the default values as 0 and when you don't give the sizes you give the default values.", 'start': 14296.107, 'duration': 7.626}], 'summary': 'Reading arr results in all zeros; default values are 0 when sizes not given.', 'duration': 23.982, 'max_score': 14279.751, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz014279751.jpg'}], 'start': 12638.127, 'title': 'Understanding arrays and their applications', 'summary': 'Delves into the concept of arrays, covering 1d and 2d arrays, their creation, indexing, read, write, update operations, and use cases in software design and image processing. it also demonstrates the advantages of using arrays for storing and accessing multiple values, emphasizing the reduction in development effort for handling a large number of states.', 'chapters': [{'end': 12859.118, 'start': 12638.127, 'title': 'Understanding arrays in software design', 'summary': 'Discusses the concept of arrays, a data structure to store multiple values, including 1d and 2d arrays, and their use cases in software design and image processing.', 'duration': 220.991, 'highlights': ['The chapter introduces the concept of arrays as a data structure to store multiple values, with a specific example of using arrays to store the population data of different states in a country.', 'The chapter explains the concept of 1D arrays, highlighting their use in storing elements in a continuous row, and the requirement for type safety, allowing only elements of the same type to be stored in the array.', 'The chapter delves into the concept of 2D arrays, illustrating their use as a collection of collections to store population data for different countries and states, and expands on the concept of multi-dimensional arrays for complex data processing tasks such as image processing.', 'The chapter provides a basic overview of creating a 1D array, emphasizing its fundamental nature in software design.']}, {'end': 13671.013, 'start': 12859.499, 'title': '1d arrays in java', 'summary': 'Explains the creation, indexing, read, write, update operations, and enhanced for loop usage for 1d arrays in java. it also demonstrates the advantages of using arrays for storing and accessing multiple values, and the reduction in development effort for handling a large number of states.', 'duration': 811.514, 'highlights': ['Arrays can be created in Java using a reference variable with the new operator and specifying the size, such as a new integer with 5 elements, to create an array of 5 integers. Demonstrates the syntax and method for creating arrays in Java, with a quantifiable example of creating an array of 5 integers.', 'Array elements are accessible through indexing, such as accessing the 0th index with myArray[0] to assign a value, and accessing specific elements by mentioning the index in square brackets. Explains the method of accessing and assigning values to array elements using indexing, with quantifiable examples of accessing and updating specific elements.', 'Demonstrates the use of 1D arrays for storing and accessing population counts of different states, highlighting the advantage of using arrays as multi-value containers and the reduction in development effort for handling a large number of states. Illustrates the practical application of 1D arrays for storing population counts of different states, emphasizing the advantages of using arrays as multi-value containers and reducing development effort for handling multiple states.']}, {'end': 14303.733, 'start': 13671.694, 'title': 'Working with 2d arrays', 'summary': 'Discusses the concept of 2d arrays, representing a matrix using 2d arrays, accessing and updating elements, and printing the entire 2d array, demonstrating the power of array of arrays in handling large amounts of data.', 'duration': 632.039, 'highlights': ['Demonstrating the concept of 2D arrays by representing a matrix using 2D arrays and accessing elements. The chapter explains how to represent a matrix using 2D arrays and demonstrates how to access elements within the array.', 'Printing the entire 2D array to showcase the power of array of arrays in handling large amounts of data. The chapter shows an example of printing the entire 2D array to illustrate the capabilities of array of arrays in managing significant data.', 'Discussing the default values of the array elements when sizes are specified and when they are not. The transcript discusses the output of reading an array when sizes are specified and when they are not, highlighting the default values of the elements in each case.']}], 'duration': 1665.606, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz012638127.jpg', 'highlights': ['The chapter delves into the concept of 2D arrays, illustrating their use as a collection of collections to store population data for different countries and states, and expands on the concept of multi-dimensional arrays for complex data processing tasks such as image processing.', 'Demonstrates the use of 1D arrays for storing and accessing population counts of different states, highlighting the advantage of using arrays as multi-value containers and the reduction in development effort for handling a large number of states.', 'Arrays can be created in Java using a reference variable with the new operator and specifying the size, such as a new integer with 5 elements, to create an array of 5 integers. Demonstrates the syntax and method for creating arrays in Java, with a quantifiable example of creating an array of 5 integers.', 'Array elements are accessible through indexing, such as accessing the 0th index with myArray[0] to assign a value, and accessing specific elements by mentioning the index in square brackets. Explains the method of accessing and assigning values to array elements using indexing, with quantifiable examples of accessing and updating specific elements.', 'Printing the entire 2D array to showcase the power of array of arrays in handling large amounts of data. The chapter shows an example of printing the entire 2D array to illustrate the capabilities of array of arrays in managing significant data.']}, {'end': 16957.741, 'segs': [{'end': 14340.285, 'src': 'embed', 'start': 14303.793, 'weight': 9, 'content': [{'end': 14314.562, 'text': "So it's just the basic conclusion to understand the arrays, right? So giving size is we need to put the data later.", 'start': 14303.793, 'duration': 10.769}, {'end': 14321.108, 'text': 'Hence data initially would be 0.', 'start': 14315.043, 'duration': 6.065}, {'end': 14331.862, 'text': 'So this is how we are understanding this guy array, right? So giving data first we need not to give any size.', 'start': 14321.108, 'duration': 10.754}, {'end': 14340.285, 'text': "So that's like the thumb room and guys explore enhanced for loop on 2d arrays.", 'start': 14331.962, 'duration': 8.323}], 'summary': 'Understanding arrays: size needed for data, initial data is 0, exploring enhanced for loop on 2d arrays.', 'duration': 36.492, 'max_score': 14303.793, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz014303793.jpg'}, {'end': 14560.921, 'src': 'embed', 'start': 14529.944, 'weight': 7, 'content': [{'end': 14534.107, 'text': 'So you get to see that the matrix three is coming as all threes.', 'start': 14529.944, 'duration': 4.163}, {'end': 14535.568, 'text': 'So here we are.', 'start': 14535.008, 'duration': 0.56}, {'end': 14544.95, 'text': "So one basic mathematical operation on matrices guys, right? We'll see sorting and searching in arrays.", 'start': 14536.784, 'duration': 8.166}, {'end': 14551.835, 'text': 'So there are various different algorithms through which we can sort the elements in an array and same way.', 'start': 14545.35, 'duration': 6.485}, {'end': 14560.921, 'text': "We can even do searching now typically when you are in an e-commerce shopping website, let's say Amazon or any other e-commerce.", 'start': 14551.895, 'duration': 9.026}], 'summary': 'Matrix 3 is repeated, and a discussion about sorting and searching in arrays.', 'duration': 30.977, 'max_score': 14529.944, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz014529944.jpg'}, {'end': 14691.384, 'src': 'embed', 'start': 14664.958, 'weight': 1, 'content': [{'end': 14668.999, 'text': 'So 4 and 10 will pass because 4 is lesser than 10.', 'start': 14664.958, 'duration': 4.041}, {'end': 14671.439, 'text': "Then we'll move on to the next adjacent elements.", 'start': 14668.999, 'duration': 2.44}, {'end': 14673.48, 'text': "That's like 10 and minus 3.", 'start': 14671.479, 'duration': 2.001}, {'end': 14677.541, 'text': 'So when we compared them, we found that minus 3 is a smaller one.', 'start': 14673.48, 'duration': 4.061}, {'end': 14681.362, 'text': 'So we swap them and same way when we compare 10 and 12.', 'start': 14677.581, 'duration': 3.781}, {'end': 14682.782, 'text': "So it's perfectly fine.", 'start': 14681.362, 'duration': 1.42}, {'end': 14685.343, 'text': "So let's pass now in the next iteration.", 'start': 14682.822, 'duration': 2.521}, {'end': 14691.384, 'text': "So we'll again begin and we'll now start from the next index of the ith loop.", 'start': 14685.743, 'duration': 5.641}], 'summary': 'Sorting algorithm compares and swaps elements based on their values.', 'duration': 26.426, 'max_score': 14664.958, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz014664958.jpg'}, {'end': 14831.164, 'src': 'embed', 'start': 14797.677, 'weight': 10, 'content': [{'end': 14810.505, 'text': "So this is let's say the outer loop which starts from 0 and this loop shall go till less than your length minus 1 and thereafter.", 'start': 14797.677, 'duration': 12.828}, {'end': 14817.169, 'text': "I'll say an I plus plus so it means that this loop will go from 0.", 'start': 14810.585, 'duration': 6.584}, {'end': 14824.981, 'text': 'So this I loops gonna work from the 0 index, then one, then two, and then three.', 'start': 14817.169, 'duration': 7.812}, {'end': 14827.682, 'text': 'right, not the last one, right?', 'start': 14824.981, 'duration': 2.701}, {'end': 14831.164, 'text': "So it's less than length minus one, right?", 'start': 14827.702, 'duration': 3.462}], 'summary': 'The outer loop starts from 0 and goes till length-1, incrementing by 1.', 'duration': 33.487, 'max_score': 14797.677, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz014797677.jpg'}, {'end': 15179.139, 'src': 'embed', 'start': 15122.474, 'weight': 2, 'content': [{'end': 15125.254, 'text': "So I'll create a similar sort method.", 'start': 15122.474, 'duration': 2.78}, {'end': 15126.995, 'text': 'So let me copy this.', 'start': 15125.814, 'duration': 1.181}, {'end': 15134.796, 'text': "So we'll have a similar method where we gonna sort the data, right? So the structure begins in the same way.", 'start': 15128.615, 'duration': 6.181}, {'end': 15140.537, 'text': 'So the thing is we need to come up and iterate for the same structure.', 'start': 15135.116, 'duration': 5.421}, {'end': 15144.113, 'text': 'We gonna iterate from 0 to length minus 1.', 'start': 15140.717, 'duration': 3.396}, {'end': 15146.115, 'text': 'So the internal structure.', 'start': 15144.113, 'duration': 2.002}, {'end': 15148.457, 'text': "it's gonna be a bit different now, right?", 'start': 15146.115, 'duration': 2.342}, {'end': 15161.708, 'text': "So what I'll do is I'll first of all assume that the minimum element or you can say that minimum element on the index is the element at the is index right?", 'start': 15149.258, 'duration': 12.45}, {'end': 15164.09, 'text': 'So the minimum element right?', 'start': 15162.289, 'duration': 1.801}, {'end': 15165.692, 'text': "So I'll just write here", 'start': 15164.491, 'duration': 1.201}, {'end': 15171.392, 'text': 'So as you mean Minimum element is at ith index.', 'start': 15165.872, 'duration': 5.52}, {'end': 15179.139, 'text': "So we're assuming this partner right and will now look for any element who is a minimum than this.", 'start': 15171.913, 'duration': 7.226}], 'summary': 'Creating a similar sort method with iteration and assumption of minimum element at ith index.', 'duration': 56.665, 'max_score': 15122.474, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz015122474.jpg'}, {'end': 15819.934, 'src': 'embed', 'start': 15792.983, 'weight': 0, 'content': [{'end': 15801.06, 'text': 'So what we will be doing is we will be reswaping your number nine and four and then increment I.', 'start': 15792.983, 'duration': 8.077}, {'end': 15806.369, 'text': 'Now again six and one there compared, and we see that one is less.', 'start': 15801.727, 'duration': 4.642}, {'end': 15809.49, 'text': 'so you again swap, but seven is greater.', 'start': 15806.369, 'duration': 3.121}, {'end': 15814.332, 'text': "you don't swap, but two is what which we know is lesser.", 'start': 15809.49, 'duration': 4.842}, {'end': 15819.934, 'text': "So what we're going to do is we're going to swap your two with the nine so on and so forth.", 'start': 15814.852, 'duration': 5.082}], 'summary': 'Swapping numbers to increment, comparing values for swaps.', 'duration': 26.951, 'max_score': 15792.983, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz015792983.jpg'}], 'start': 14303.793, 'title': 'Array operations and sorting algorithms', 'summary': "Covers understanding 2d arrays, matrix operations, sorting algorithms such as bubble sort, selection sort, insertion sort, quick sort, merge sort, and search algorithms. it includes practical applications, basic coding implementation, and examples of the algorithms' effectiveness.", 'chapters': [{'end': 14529.884, 'start': 14303.793, 'title': 'Understanding 2d arrays and matrix operations', 'summary': 'Covers the basics of understanding arrays, exploring enhanced for loop on 2d arrays, and solving matrices problem by adding two 3x3 arrays.', 'duration': 226.091, 'highlights': ['Exploring enhanced for loop on 2D arrays The chapter explains how to convert nested for loop into enhanced for loop to explore 2D arrays, facilitating easier data manipulation.', 'Solving matrices problem by adding two 3x3 arrays The transcript demonstrates the process of adding two 3x3 arrays (A and B) to create a new matrix C, providing a practical application of matrix operations.', 'Basic conclusion to understand arrays The discussion emphasizes the importance of understanding the basics of arrays, particularly focusing on the concept of giving size and data initialization.']}, {'end': 14894.093, 'start': 14529.944, 'title': 'Sorting algorithms in matrices', 'summary': 'Discusses sorting algorithms like bubble sort, selection sort, insertion sort, quick sort, and merge sort for arrays, explaining the process, practical applications, and basic coding implementation.', 'duration': 364.149, 'highlights': ['The chapter discusses sorting algorithms like bubble sort, selection sort, insertion sort, quick sort, and merge sort for arrays. This is the main topic of the chapter and provides an overview of the algorithms being discussed.', 'The practical application of sorting algorithms in e-commerce websites, such as Amazon, to sort items based on price in ascending or descending order. Provides a real-world example of the application of sorting algorithms.', 'Explanation of the bubble sort algorithm, including the process of swapping adjacent elements to sort the array. Detailed explanation of the bubble sort algorithm and its process.', 'Coding implementation of the bubble sort algorithm using a small program with detailed explanation of the logic and loops. Provides a detailed example of coding implementation of the bubble sort algorithm.']}, {'end': 15945.651, 'start': 14894.093, 'title': 'Sorting algorithms overview', 'summary': 'Provides an overview of bubble sort, selection sort, insertion sort, and quicksort. bubble sort compares adjacent elements and swaps them, resulting in a sorted arrangement; selection sort finds and places the minimum element at the beginning of the array in each iteration; insertion sort picks and inserts elements into a sorted sequence; and quicksort employs a divide and conquer algorithm to partition the array and sort its elements.', 'duration': 1051.558, 'highlights': ['Bubble sort compares adjacent elements and swaps them, resulting in a sorted arrangement. Bubble sort compares adjacent elements and swaps them, resulting in a sorted arrangement of elements like -3, 1, 4, 10, and 12.', 'Selection sort finds and places the minimum element at the beginning of the array in each iteration. Selection sort iteratively finds and places the minimum element at the beginning of the array, such as -3, 1, 4, 10, and 12.', 'Insertion sort picks and inserts elements into a sorted sequence. Insertion sort picks and inserts elements into a sorted sequence, resulting in a sorted array of elements like -3, 1, 4, 10, and 12.', 'Quicksort employs a divide and conquer algorithm to partition the array and sort its elements. Quicksort employs a divide and conquer algorithm to partition the array and sort its elements, ensuring that elements to the left of the pivot are less or equal, and those to the right are greater.']}, {'end': 16361.51, 'start': 15946.311, 'title': 'Merge sort algorithm', 'summary': 'Discusses the merge sort algorithm, a divide and conquer approach that divides the array into subarrays, sorts them, and then merges them, aiming to achieve a sorted outcome. it explains the process of dividing the array, merging the elements, and the recursive nature of the sorting process.', 'duration': 415.199, 'highlights': ['The merge sort algorithm divides the array into subarrays and then merges them to achieve a sorted outcome. It discusses the process of dividing the array, merging the elements, and the recursive nature of the sorting process.', 'The recursive nature of the sorting process is emphasized, as the method is called repeatedly until a certain condition is met. It explains the recursive call of the sorting method until a specified condition is satisfied.', 'The merging process involves comparing and copying elements from the left and right subarrays to the merged subarray, ultimately achieving the sorted outcome. It details the process of comparing and copying elements from the left and right subarrays to the merged subarray to achieve a sorted outcome.']}, {'end': 16957.741, 'start': 16362.469, 'title': 'Searching in arrays', 'summary': 'Discusses the linear search and binary search algorithms, providing examples of their implementation and showcasing their effectiveness by finding elements in arrays and returning their respective indices.', 'duration': 595.272, 'highlights': ['The linear search algorithm, beginning from the 0 index and iterating till the last index, efficiently returns the index of the found element. Efficiently returns the index of the found element', 'The binary search algorithm, optimized for time complexity, divides the array into sub-arrays to efficiently locate the element. Optimized for time complexity, efficiently locate the element', 'In the example, the linear search successfully finds the element 10 at the second index, and the binary search accurately locates the element 12 at the fourth index. The linear search finds the element 10 at the second index, the binary search locates the element 12 at the fourth index']}], 'duration': 2653.948, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz014303793.jpg', 'highlights': ['The practical application of sorting algorithms in e-commerce websites, such as Amazon, to sort items based on price in ascending or descending order. Provides a real-world example of the application of sorting algorithms.', 'Coding implementation of the bubble sort algorithm using a small program with detailed explanation of the logic and loops. Provides a detailed example of coding implementation of the bubble sort algorithm.', 'The chapter discusses sorting algorithms like bubble sort, selection sort, insertion sort, quick sort, and merge sort for arrays. This is the main topic of the chapter and provides an overview of the algorithms being discussed.', 'Quicksort employs a divide and conquer algorithm to partition the array and sort its elements. Quicksort employs a divide and conquer algorithm to partition the array and sort its elements, ensuring that elements to the left of the pivot are less or equal, and those to the right are greater.', 'The merge sort algorithm divides the array into subarrays and then merges them to achieve a sorted outcome. It discusses the process of dividing the array, merging the elements, and the recursive nature of the sorting process.', 'The recursive nature of the sorting process is emphasized, as the method is called repeatedly until a certain condition is met. It explains the recursive call of the sorting method until a specified condition is satisfied.', 'The merging process involves comparing and copying elements from the left and right subarrays to the merged subarray, ultimately achieving the sorted outcome. It details the process of comparing and copying elements from the left and right subarrays to the merged subarray to achieve a sorted outcome.', 'The linear search algorithm, beginning from the 0 index and iterating till the last index, efficiently returns the index of the found element. Efficiently returns the index of the found element', 'The binary search algorithm, optimized for time complexity, divides the array into sub-arrays to efficiently locate the element. Optimized for time complexity, efficiently locate the element', 'In the example, the linear search successfully finds the element 10 at the second index, and the binary search accurately locates the element 12 at the fourth index. The linear search finds the element 10 at the second index, the binary search locates the element 12 at the fourth index', 'Exploring enhanced for loop on 2D arrays The chapter explains how to convert nested for loop into enhanced for loop to explore 2D arrays, facilitating easier data manipulation.', 'Solving matrices problem by adding two 3x3 arrays The transcript demonstrates the process of adding two 3x3 arrays (A and B) to create a new matrix C, providing a practical application of matrix operations.', 'Basic conclusion to understand arrays The discussion emphasizes the importance of understanding the basics of arrays, particularly focusing on the concept of giving size and data initialization.']}, {'end': 19817.273, 'segs': [{'end': 17060.11, 'src': 'embed', 'start': 17029.369, 'weight': 5, 'content': [{'end': 17032.412, 'text': 'Also the size of the list is increased dynamically.', 'start': 17029.369, 'duration': 3.043}, {'end': 17037.898, 'text': 'If the elements are added more than the initial size, though it may be slower than the standard arrays,', 'start': 17032.672, 'duration': 5.226}, {'end': 17042.303, 'text': 'but can be very helpful in programs where lots of manipulation in the array is required.', 'start': 17037.898, 'duration': 4.405}, {'end': 17046.865, 'text': 'Some key points to note here ArrayList is initialized by a size.', 'start': 17043.064, 'duration': 3.801}, {'end': 17052.727, 'text': 'However, the size can increase if the collection grows or shrunk if the objects are removed from the collection.', 'start': 17047.065, 'duration': 5.662}, {'end': 17060.11, 'text': 'next, ArrayList allows us to randomly access the list, and ArrayList cannot be used for primitive types like int, char, etc.', 'start': 17052.727, 'duration': 7.383}], 'summary': 'Arraylist dynamically grows, allows random access, not for primitive types.', 'duration': 30.741, 'max_score': 17029.369, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz017029369.jpg'}, {'end': 17098.507, 'src': 'embed', 'start': 17067.993, 'weight': 11, 'content': [{'end': 17071.154, 'text': 'We create an empty array and then go on adding the elements.', 'start': 17067.993, 'duration': 3.161}, {'end': 17079.502, 'text': 'Once the size of the array is full, that is, if the size of the current elements is greater than the maximum size of the array,', 'start': 17072, 'duration': 7.502}, {'end': 17082.103, 'text': 'then we have to increase the size of the array.', 'start': 17079.502, 'duration': 2.601}, {'end': 17085.084, 'text': 'but the size of the array cannot be increased dynamically.', 'start': 17082.103, 'duration': 2.981}, {'end': 17091.185, 'text': 'So what happens internally is a new array is created and the old array is copied to the new array.', 'start': 17085.424, 'duration': 5.761}, {'end': 17098.507, 'text': 'So by this automatically the size will be doubled and it will be increased so you can go on adding the elements how much you require.', 'start': 17091.565, 'duration': 6.942}], 'summary': 'Array size doubles when full, allowing dynamic element addition.', 'duration': 30.514, 'max_score': 17067.993, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz017067993.jpg'}, {'end': 17383.994, 'src': 'embed', 'start': 17354.182, 'weight': 0, 'content': [{'end': 17359.464, 'text': 'We will demonstrate and see all the methods of ArrayList in Eclipse after knowing the concepts of them.', 'start': 17354.182, 'duration': 5.282}, {'end': 17361.855, 'text': 'Next, clear method.', 'start': 17360.254, 'duration': 1.601}, {'end': 17365.258, 'text': 'this method is used to remove all the elements from the list.', 'start': 17361.855, 'duration': 3.403}, {'end': 17370.963, 'text': 'that is, you can just use clear method to remove all the elements present in the list.', 'start': 17365.258, 'duration': 5.705}, {'end': 17372.905, 'text': 'next, trim to size.', 'start': 17370.963, 'duration': 1.942}, {'end': 17377.228, 'text': "this method trims the capacity of an ArrayList instance to the list's current size.", 'start': 17372.905, 'duration': 4.323}, {'end': 17383.994, 'text': 'That is, if you are creating an ArrayList of size 9 and if you are adding only three elements to that.', 'start': 17377.829, 'duration': 6.165}], 'summary': 'Demonstration of arraylist methods in eclipse, including clear and trimtosize.', 'duration': 29.812, 'max_score': 17354.182, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz017354182.jpg'}, {'end': 17460.646, 'src': 'embed', 'start': 17422.61, 'weight': 3, 'content': [{'end': 17426.992, 'text': 'that does, it returns minus 1 if the list does not contain the particular element.', 'start': 17422.61, 'duration': 4.382}, {'end': 17428.733, 'text': 'next object clone.', 'start': 17426.992, 'duration': 1.741}, {'end': 17431.835, 'text': 'this method is used to return a copy of the ArrayList.', 'start': 17428.733, 'duration': 3.102}, {'end': 17433.696, 'text': 'that is, on calling this method.', 'start': 17431.835, 'duration': 1.861}, {'end': 17435.417, 'text': 'it clones entire ArrayList.', 'start': 17433.696, 'duration': 1.721}, {'end': 17442.781, 'text': "So, for example, if you are adding two elements in the array and you're cloning the entire thing, then again, after clone list,", 'start': 17436.057, 'duration': 6.724}, {'end': 17445.102, 'text': 'it will return the whole element present in the ArrayList.', 'start': 17442.781, 'duration': 2.321}, {'end': 17452.604, 'text': 'Next object to array this method is used to return an array containing of all the elements in the list in the current order.', 'start': 17445.862, 'duration': 6.742}, {'end': 17459.046, 'text': 'For example, if you have all the elements in the list, then it will return all the elements in the list in the correct order.', 'start': 17453.044, 'duration': 6.002}, {'end': 17460.646, 'text': 'next remove method.', 'start': 17459.046, 'duration': 1.6}], 'summary': 'Arraylist methods: clone returns copy, toarray returns array, remove deletes element', 'duration': 38.036, 'max_score': 17422.61, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz017422610.jpg'}, {'end': 17507.388, 'src': 'embed', 'start': 17481.652, 'weight': 10, 'content': [{'end': 17486.054, 'text': 'say we have added four elements, then it returns the size of the ArrayList as 4.', 'start': 17481.652, 'duration': 4.402}, {'end': 17490.056, 'text': "now let's demonstrate all the methods and see how it works and how it is used.", 'start': 17486.054, 'duration': 4.002}, {'end': 17493.538, 'text': "I'll create one more class called ArrayList.", 'start': 17491.697, 'duration': 1.841}, {'end': 17497.619, 'text': "Now in this example, we'll see how to add the elements.", 'start': 17494.978, 'duration': 2.641}, {'end': 17507.388, 'text': "We'll create the ArrayList of type AL that is a reference and we'll go on adding the elements into this.", 'start': 17500.621, 'duration': 6.767}], 'summary': 'Demonstrating arraylist methods, adding 4 elements, and creating a new class.', 'duration': 25.736, 'max_score': 17481.652, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz017481652.jpg'}, {'end': 18186.84, 'src': 'embed', 'start': 18159.522, 'weight': 6, 'content': [{'end': 18166.769, 'text': 'For example a method called compare to can compare one string with the other string whether they are equal or not.', 'start': 18159.522, 'duration': 7.247}, {'end': 18170.495, 'text': 'Then we got cache sequence interface guys.', 'start': 18167.634, 'duration': 2.861}, {'end': 18177.377, 'text': 'This is a readable sequence of characters and this is supposed to provide some read-only access.', 'start': 18170.535, 'duration': 6.842}, {'end': 18186.84, 'text': 'and the other thing is that cache sequence is basically parent to three classes right string, string buffer and string builder.', 'start': 18177.377, 'duration': 9.463}], 'summary': 'Explaining methods like compare to, cache sequence interface, and its relationship with string, string buffer, and string builder.', 'duration': 27.318, 'max_score': 18159.522, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz018159522.jpg'}, {'end': 18336.125, 'src': 'embed', 'start': 18310.248, 'weight': 8, 'content': [{'end': 18318.435, 'text': 'We call it an object, right? So let us have a quick look on how we create a string and how he and how the string pool comes into action.', 'start': 18310.248, 'duration': 8.187}, {'end': 18323.859, 'text': 'So, considering we are going to use literal to create a string.', 'start': 18319.016, 'duration': 4.843}, {'end': 18329.902, 'text': 'so guys, Java string literal is created by just writing the string literal in double quotes.', 'start': 18323.859, 'duration': 6.043}, {'end': 18334.264, 'text': 'So how you will do it? You will say string STR is at Eureka.', 'start': 18329.962, 'duration': 4.302}, {'end': 18336.125, 'text': 'You need to use this double quotes.', 'start': 18334.724, 'duration': 1.401}], 'summary': 'Creating java string literal using double quotes', 'duration': 25.877, 'max_score': 18310.248, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz018310248.jpg'}, {'end': 18389.918, 'src': 'embed', 'start': 18364.058, 'weight': 1, 'content': [{'end': 18369.062, 'text': "Let's say I want to write another string but that will also be a Dureka.", 'start': 18364.058, 'duration': 5.004}, {'end': 18378.768, 'text': 'So for that what happens so before creating a string literal, right? So first a lookup happens for the value in the string pool.', 'start': 18369.502, 'duration': 9.266}, {'end': 18383.834, 'text': 'If the same value is already available in the string pool right?', 'start': 18379.272, 'duration': 4.562}, {'end': 18385.976, 'text': 'So a new string will not be created.', 'start': 18383.915, 'duration': 2.061}, {'end': 18389.918, 'text': 'rather, the reference of that string will be returned for an instance.', 'start': 18385.976, 'duration': 3.942}], 'summary': 'String literals in java undergo a lookup in the string pool, preventing duplicate creation.', 'duration': 25.86, 'max_score': 18364.058, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz018364058.jpg'}, {'end': 19004.439, 'src': 'embed', 'start': 18970.631, 'weight': 4, 'content': [{'end': 18979.207, 'text': "It's not comparing the content, and we also saw that if we have a literal, if we create a string literal,", 'start': 18970.631, 'duration': 8.576}, {'end': 18984.249, 'text': 'so there we get to have the same reference for the same string.', 'start': 18979.207, 'duration': 5.042}, {'end': 18989.272, 'text': 'So str1 was compared but str3 and str4 were not compared.', 'start': 18984.269, 'duration': 5.003}, {'end': 18991.553, 'text': 'So how we should compare right?', 'start': 18989.832, 'duration': 1.721}, {'end': 18994.855, 'text': 'So how should we compare strings?', 'start': 18992.073, 'duration': 2.782}, {'end': 18997.176, 'text': 'There are two ways.', 'start': 18995.775, 'duration': 1.401}, {'end': 19004.439, 'text': "the first way, I'm going to write here that if str3 dot equals str4..", 'start': 18997.176, 'duration': 7.263}], 'summary': 'Comparing string literals yields same reference, different from other strings.', 'duration': 33.808, 'max_score': 18970.631, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz018970631.jpg'}, {'end': 19190.235, 'src': 'embed', 'start': 19158.531, 'weight': 12, 'content': [{'end': 19162.579, 'text': "So let's say STR is plus STR.", 'start': 19158.531, 'duration': 4.048}, {'end': 19163.959, 'text': "So I'm just going to print the string.", 'start': 19162.599, 'duration': 1.36}, {'end': 19168.062, 'text': 'So it says STR is John, Jenny, Jim, Jack and Joe.', 'start': 19164.36, 'duration': 3.702}, {'end': 19174.526, 'text': 'length is 28, the character at 0 is G and the character at length minus 1.', 'start': 19168.062, 'duration': 6.464}, {'end': 19178.028, 'text': 'that is 28 minus 127 is E.', 'start': 19174.526, 'duration': 3.502}, {'end': 19183.111, 'text': 'so strings starts with the 0 and goes till n, minus 1.', 'start': 19178.028, 'duration': 5.083}, {'end': 19185.252, 'text': "that's like length minus 1.", 'start': 19183.111, 'duration': 2.141}, {'end': 19190.235, 'text': 'now, considering, I will say STR dot to uppercase.', 'start': 19185.252, 'duration': 4.983}], 'summary': "String 'str' contains 'john, jenny, jim, jack and joe' with a length of 28, starting with 'g' and ending with 'e', and converted to uppercase.", 'duration': 31.704, 'max_score': 19158.531, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz019158531.jpg'}], 'start': 16957.821, 'title': 'Recursion in binary search, arraylist, and java strings', 'summary': 'Covers recursion in binary search, java arraylist, constructors, methods, java strings creation, manipulation, comparison, and usage, highlighting key concepts and methods including dynamic resizing, immutable objects, string comparison, manipulation, and validation.', 'chapters': [{'end': 17154.459, 'start': 16957.821, 'title': 'Recursion in binary search and java arraylist', 'summary': 'Discusses the recursion approach for solving the binary search problem and provides an overview of the java arraylist, highlighting its internal working, constructors, and key points such as dynamic resizing and random access.', 'duration': 196.638, 'highlights': ['The Java ArrayList is an implementation of the list interface, allowing dynamic addition or removal of elements and the capability for dynamic resizing.', 'The internal working of ArrayList involves creating a new array and doubling the size when the current array is full, enabling dynamic increase in size for adding elements.', 'The chapter explains various constructors supported by Java ArrayList, including the ones for building an empty ArrayList, adding elements from a specified collection, and initializing with a specific capacity.']}, {'end': 17926.882, 'start': 17154.559, 'title': 'Arraylist constructors and methods', 'summary': 'Discusses the usage of constructors in arraylist, demonstrates adding, removing, and cloning elements, and explains various methods such as add, clear, trim to size, index of, object clone, object to array, remove, and size, while highlighting the advantages of arraylist over arrays.', 'duration': 772.323, 'highlights': ['ArrayList is variable length and can grow and shrink dynamically, allowing modification of size and addition of any type of data, including duplicate elements. ArrayList is variable length, allowing dynamic growth and shrinkage, modification of size, addition of any data type, including duplicate elements, and traversal in both directions.', 'Demonstrating add, remove, and clone methods in ArrayList, including adding elements using add method and removing elements using remove method. Demonstrates adding elements using add method, removing elements using remove method, and cloning elements in ArrayList.', 'Explaining various methods supported by ArrayList such as add, clear, trim to size, index of, object clone, object to array, remove, and size. Explains methods like add, clear, trim to size, index of, object clone, object to array, remove, and size supported by ArrayList.', 'Usage of constructors in ArrayList, including initializing capacity, adding elements, and printing the elements using advanced for loop. Usage of constructors in ArrayList, including initializing capacity, adding elements, and printing the elements using an advanced for loop.']}, {'end': 18690.715, 'start': 17932.819, 'title': 'Java strings: creation, manipulation, and methods', 'summary': 'Explains the concept of java strings, highlighting that strings are immutable objects, stored in a string pool for memory optimization, and can be created using literals or the new keyword. it also explores the built-in methods for string manipulation, such as equals, length, uppercase, lowercase, replace, trim, contains, and more.', 'duration': 757.896, 'highlights': ['Java strings are immutable objects, and their data cannot be manipulated once created, which ensures data integrity and security. Immutable nature of Java strings ensures that once a string is created, its data cannot be changed, providing data integrity and security.', 'String pool in Java saves memory by storing string literals only once and sharing them, preventing redundant creation of identical string literals. String pool in Java saves memory by storing string literals only once and sharing them, preventing redundant creation of identical string literals and optimizing memory usage.', 'Strings can be created using literals or the new keyword, with literals being interned in the string pool and the new keyword creating new objects in the heap memory. Strings can be created using literals, which are interned in the string pool, or using the new keyword, which creates new objects in the heap memory.', 'The chapter introduces various built-in methods for string manipulation, such as equals, length, uppercase, lowercase, replace, trim, contains, toCharArray, isEmpty, endsWith, startsWith, and concat. The chapter introduces various built-in methods for string manipulation, such as equals, length, uppercase, lowercase, replace, trim, contains, toCharArray, isEmpty, endsWith, startsWith, and concat.']}, {'end': 19052.144, 'start': 18691.115, 'title': 'Java strings: comparison and usage', 'summary': "Demonstrates the comparison of string literals and string objects in java, emphasizing the difference in comparison results and the correct usage of comparison methods, showcasing that the 'equals' method compares the content within the strings, while the '==' operator compares the references.", 'duration': 361.029, 'highlights': ["The chapter highlights the comparison of string literals and string objects in Java, emphasizing the difference in comparison results based on whether the '==' operator or the 'equals' method is used, showcasing the significance of understanding the distinction for accurate string comparison.", "The demonstration showcases that the '==' operator compares the references of the string variables, which is evident when comparing string literals using this operator, leading to equal results for the same literal, but unequal results for different string objects with the same content, providing a clear understanding of reference comparison in string operations.", "The chapter provides a clear explanation of the correct usage of the 'equals' method for comparing string contents, highlighting its functionality in accurately comparing the content within the strings and emphasizing the importance of using this method for content-based comparison rather than the '==' operator, ensuring precise string comparison in Java programming."]}, {'end': 19817.273, 'start': 19052.164, 'title': 'String comparison and manipulation', 'summary': 'Explores string comparison, manipulation, and validation, covering methods like compare, length, touppercase, contains, substring, replace, split, and validations for email and phone number, while emphasizing the immutability of strings.', 'duration': 765.109, 'highlights': ['The chapter covers methods like compare, length, toUpperCase, contains, substring, replace, split, and validations for email and phone number. The chapter discusses various string methods such as compare, length, toUpperCase, contains, substring, replace, split, and validations for email and phone number.', 'Emphasizes the immutability of strings and the generation of a new string during manipulation. The chapter emphasizes the immutability of strings, stating that string manipulation generates a new string without modifying the original string.', 'Demonstrates the usage of string manipulation methods like replace and substring with specific examples. The chapter demonstrates the usage of string manipulation methods like replace and substring, providing specific examples for better understanding.', 'Provides validations for email and phone numbers, including checks for empty fields and length requirements. The chapter provides validations for email and phone numbers, including checks for empty fields and length requirements, ensuring the correctness of user-provided data.']}], 'duration': 2859.452, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz016957821.jpg', 'highlights': ['The Java ArrayList is an implementation of the list interface, allowing dynamic addition or removal of elements and the capability for dynamic resizing.', 'The internal working of ArrayList involves creating a new array and doubling the size when the current array is full, enabling dynamic increase in size for adding elements.', 'ArrayList is variable length and can grow and shrink dynamically, allowing modification of size and addition of any type of data, including duplicate elements.', 'Explaining various methods supported by ArrayList such as add, clear, trim to size, index of, object clone, object to array, remove, and size.', 'Java strings are immutable objects, and their data cannot be manipulated once created, which ensures data integrity and security.', 'String pool in Java saves memory by storing string literals only once and sharing them, preventing redundant creation of identical string literals and optimizing memory usage.', 'The chapter introduces various built-in methods for string manipulation, such as equals, length, uppercase, lowercase, replace, trim, contains, toCharArray, isEmpty, endsWith, startsWith, and concat.', "The chapter highlights the comparison of string literals and string objects in Java, emphasizing the difference in comparison results based on whether the '==' operator or the 'equals' method is used, showcasing the significance of understanding the distinction for accurate string comparison.", "The demonstration showcases that the '==' operator compares the references of the string variables, which is evident when comparing string literals using this operator, leading to equal results for the same literal, but unequal results for different string objects with the same content, providing a clear understanding of reference comparison in string operations.", "The chapter provides a clear explanation of the correct usage of the 'equals' method for comparing string contents, highlighting its functionality in accurately comparing the content within the strings and emphasizing the importance of using this method for content-based comparison rather than the '==' operator, ensuring precise string comparison in Java programming.", 'The chapter covers methods like compare, length, toUpperCase, contains, substring, replace, split, and validations for email and phone number.', 'Emphasizes the immutability of strings and the generation of a new string during manipulation.', 'Provides validations for email and phone numbers, including checks for empty fields and length requirements, ensuring the correctness of user-provided data.']}, {'end': 23795.463, 'segs': [{'end': 19894.805, 'src': 'embed', 'start': 19867.348, 'weight': 3, 'content': [{'end': 19877.334, 'text': 'So it is always a new string which will be constructed if you are going to do a concatenation now, we got a version called string buffer.', 'start': 19867.348, 'duration': 9.986}, {'end': 19882.497, 'text': "So here I'm going to say hello now buffer and strings.", 'start': 19878.055, 'duration': 4.442}, {'end': 19883.418, 'text': 'They are similar.', 'start': 19882.557, 'duration': 0.861}, {'end': 19894.805, 'text': "So we will use append instead of concat, right? So here I'll see world and now when you see see so buffer is plus the buffer.", 'start': 19883.922, 'duration': 10.883}], 'summary': 'String concatenation using stringbuffer and append method, to construct new strings efficiently.', 'duration': 27.457, 'max_score': 19867.348, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz019867348.jpg'}, {'end': 19986.898, 'src': 'embed', 'start': 19955.011, 'weight': 6, 'content': [{'end': 19958.092, 'text': 'So you see buffer and builder they work same way.', 'start': 19955.011, 'duration': 3.081}, {'end': 19962.334, 'text': 'The difference is that buffer is thread safe.', 'start': 19958.352, 'duration': 3.982}, {'end': 19967.222, 'text': 'Whereas this guy is Not thread safe.', 'start': 19962.694, 'duration': 4.528}, {'end': 19973.487, 'text': 'So guys all the three versions like string string buffer or string builder.', 'start': 19967.582, 'duration': 5.905}, {'end': 19978.451, 'text': 'So we are very well aware with the you see strings now.', 'start': 19973.968, 'duration': 4.483}, {'end': 19983.515, 'text': 'So we also understood what we need to do in case we need to use the mutable sequences.', 'start': 19978.932, 'duration': 4.583}, {'end': 19986.898, 'text': 'So all three they implement char sequence.', 'start': 19983.856, 'duration': 3.042}], 'summary': 'String, stringbuffer, and stringbuilder implement char sequence. stringbuffer is thread safe.', 'duration': 31.887, 'max_score': 19955.011, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz019955011.jpg'}, {'end': 20222.11, 'src': 'embed', 'start': 20172.826, 'weight': 1, 'content': [{'end': 20178.209, 'text': 'It is like building a commercial plane which takes both the passengers and cargo luggage.', 'start': 20172.826, 'duration': 5.383}, {'end': 20184.973, 'text': 'interface is like making a bigger plane which could do both the tasks without interfering with the components of one another,', 'start': 20178.209, 'duration': 6.764}, {'end': 20188.415, 'text': 'instead just borrowing the methods which are present in the interface class.', 'start': 20184.973, 'duration': 3.442}, {'end': 20192.194, 'text': 'Now, let us get practical first.', 'start': 20189.472, 'duration': 2.722}, {'end': 20196.616, 'text': 'Let us understand what was the problem in multiple inheritance here.', 'start': 20192.454, 'duration': 4.162}, {'end': 20204.741, 'text': 'I have defined the first class class A and then the next class which is class B and finally the class C here.', 'start': 20196.636, 'duration': 8.105}, {'end': 20211.945, 'text': "I'm trying to inherit the properties of class A and class B together in the class C by using extends keyword.", 'start': 20204.861, 'duration': 7.084}, {'end': 20219.445, 'text': 'As you can see the editor is throwing an error which says that it is not possible to inherit the properties of both the classes.', 'start': 20212.634, 'duration': 6.811}, {'end': 20222.11, 'text': 'Now, let us find the solution for this.', 'start': 20220.227, 'duration': 1.883}], 'summary': 'Illustrating the challenge of multiple inheritance in classes a, b, and c, and seeking a solution.', 'duration': 49.284, 'max_score': 20172.826, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz020172826.jpg'}, {'end': 21219.98, 'src': 'embed', 'start': 21194.237, 'weight': 12, 'content': [{'end': 21200.702, 'text': 'so what do you think will this element will be popped out first, or this element, obviously this element, right?', 'start': 21194.237, 'duration': 6.465}, {'end': 21204.145, 'text': "So now let's run and check for the output.", 'start': 21201.223, 'duration': 2.922}, {'end': 21214.374, 'text': 'So you can see first 10 was pushed into the stack, 20 was pushed, 30 was pushed into the stack and then 40, but when I used s.pop,', 'start': 21204.766, 'duration': 9.608}, {'end': 21216.856, 'text': 'the last element was popped out.', 'start': 21214.374, 'duration': 2.482}, {'end': 21219.98, 'text': "So if I don't have this element, I'll just save this.", 'start': 21217.498, 'duration': 2.482}], 'summary': 'Stack implementation: 10, 20, 30, 40 pushed, last element popped.', 'duration': 25.743, 'max_score': 21194.237, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz021194237.jpg'}, {'end': 21292.254, 'src': 'embed', 'start': 21267.385, 'weight': 4, 'content': [{'end': 21273.952, 'text': 'So if you insert an element it goes to the front and that can be popped out that is removed.', 'start': 21267.385, 'duration': 6.567}, {'end': 21277.837, 'text': 'But in case of stack it is last in first out in case of Q.', 'start': 21274.493, 'duration': 3.344}, {'end': 21279.318, 'text': 'It is first in first out.', 'start': 21277.837, 'duration': 1.481}, {'end': 21288.048, 'text': 'It supports two most fundamental set as NQ and DQ NQ means you have to insert the element at E that is at the rear of the queue.', 'start': 21279.819, 'duration': 8.229}, {'end': 21292.254, 'text': 'and DQ means remove and return the element from the front of the queue.', 'start': 21288.892, 'duration': 3.362}], 'summary': 'Queue: first in first out, supports nq and dq operations.', 'duration': 24.869, 'max_score': 21267.385, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz021267385.jpg'}, {'end': 21667.834, 'src': 'embed', 'start': 21634.611, 'weight': 0, 'content': [{'end': 21644.517, 'text': 'So if linked list is empty that is if list dot head is equal to null then make the new node as head that this new node is equal to head.', 'start': 21634.611, 'duration': 9.906}, {'end': 21653.242, 'text': 'Else traverse till the last node that is node last is equal to list dot head and then insert the new node.', 'start': 21645.097, 'duration': 8.145}, {'end': 21657.704, 'text': 'Again insert the new node at the last node.', 'start': 21655.002, 'duration': 2.702}, {'end': 21661.533, 'text': 'And finally you have to return the list by head.', 'start': 21658.752, 'duration': 2.781}, {'end': 21663.513, 'text': 'Okay now.', 'start': 21662.093, 'duration': 1.42}, {'end': 21667.834, 'text': 'This is a method to print the link list.', 'start': 21666.014, 'duration': 1.82}], 'summary': 'Insert new node at the end of a linked list and return the list by head.', 'duration': 33.223, 'max_score': 21634.611, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz021634611.jpg'}, {'end': 22829.731, 'src': 'embed', 'start': 22803.86, 'weight': 5, 'content': [{'end': 22811.827, 'text': "and here I'll be using the pop method to pop the last element which is pushed into the stack and after that I'll try to push a new element,", 'start': 22803.86, 'duration': 7.967}, {'end': 22816.391, 'text': "which is C, into the stack and finally we'll print the stack which is existing right now.", 'start': 22811.827, 'duration': 4.564}, {'end': 22818.313, 'text': 'Let us try to execute this program.', 'start': 22816.811, 'duration': 1.502}, {'end': 22829.731, 'text': 'As you can see, the last element which was pushed into the stack was B, and after popping it, we have the elements C and A,', 'start': 22821.829, 'duration': 7.902}], 'summary': 'Using pop method to remove last element from stack, pushing new element c, resulting in stack with elements c and a.', 'duration': 25.871, 'max_score': 22803.86, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz022803860.jpg'}], 'start': 19817.673, 'title': 'Data structures in java', 'summary': 'Explores string immutability, string buffer, and string builder, java interfaces, interface nesting, method implementation, linear data structures like stack, queue, linked list, binary tree, binary heap, and hash table, including their operations, applications, and java methods used, with practical examples and performance analysis.', 'chapters': [{'end': 20041.045, 'start': 19817.673, 'title': 'String, string buffer, and string builder', 'summary': 'Explores the immutability of strings, the use of string buffer and string builder for mutable sequences, and the difference between them, emphasizing their implementation of char sequence and runtime polymorphism.', 'duration': 223.372, 'highlights': ['The chapter highlights the immutability of strings, emphasizing that creating a new string is necessary for concatenation, leading to the introduction of string buffer and string builder as mutable alternatives.', 'It explains the functionality of string buffer and string builder, emphasizing that string buffer is thread-safe while string builder is not, with both working similarly and implementing char sequence for runtime polymorphism.', 'The chapter encourages further exploration of the numerous APIs available in string, string buffer, and string builder for a better understanding of their functionalities.']}, {'end': 20350.523, 'start': 20046.727, 'title': 'Java interface and multiple inheritance', 'summary': 'Explains java interfaces, multiple inheritance problem in java, and how interfaces solve the problem by allowing classes to implement behavior from multiple sources. it demonstrates the use of interfaces to achieve multiple inheritance and interface nesting through practical examples.', 'duration': 303.796, 'highlights': ['Java interfaces allow classes to implement behavior from multiple sources, solving the multiple inheritance problem in Java. Java interfaces enable classes to inherit properties and implement methods from different parent classes, addressing the limitation of multiple inheritance in Java.', 'An interface acts as a boundary for data exchange between components and can be used to achieve multiple inheritance by borrowing methods from different parent classes. Interfaces serve as boundaries for data exchange and enable classes to access methods from different parent classes, allowing for the implementation of behavior from multiple sources.', 'The chapter demonstrates practical examples of using interfaces to access methods from different parent classes and solve the multiple inheritance problem in Java. Practical examples illustrate how interfaces allow classes to access methods from different parent classes and resolve the limitations of multiple inheritance in Java.', 'Interface nesting is showcased through an example of nesting an inner interface inside another interface to generate a Fibonacci series. The chapter demonstrates interface nesting by showcasing the nesting of an inner interface inside another interface to generate a Fibonacci series using the inner method.']}, {'end': 20613.04, 'start': 20351.564, 'title': 'Nesting an interface in a class', 'summary': 'Covers nesting an interface inside a class, differences between class and interface, advantages and disadvantages of interfaces, and key points about java interfaces including instantiation, abstraction, and implementing an interface.', 'duration': 261.476, 'highlights': ['Java interfaces make the application slower when compared to the competitors, like python, which support multiple inheritance. Java interfaces may slow down applications compared to languages like Python due to their support for multiple inheritance.', 'We can achieve multiple inheritance in Java. Java interfaces allow for achieving multiple inheritance.', 'The major key advantage of interface is abstraction because none of the methods declare in an interface have a body. The major advantage of interfaces is abstraction, as none of the declared methods contain a body.', 'The first difference is multiple inheritance. interface was designed to provide multiple inheritance where, on the other hand, classes cannot. The primary difference highlighted is the support for multiple inheritance in interfaces, which is not available in classes.', 'interface is comprised of only methods which make them have only the signature methods in them, while, on the other hand, classes include both data members, which are also called as abstract members, as well as methods which are known as signature members. Interfaces only contain signature methods, while classes include both data members and methods, known as abstract and signature members, respectively.']}, {'end': 20909.814, 'start': 20613.04, 'title': 'Java interface implementation', 'summary': 'Presents the implementation of methods from two different interfaces, demonstrating the use of access modifiers and extending an interface in java, with practical examples and explanations of key points.', 'duration': 296.774, 'highlights': ['The class edureka2 implements both the methods from different interfaces successfully, confirming 3 as a prime number and 153 as an Armstrong number.', 'Access modifiers in an interface are discussed, stating that interface methods are by default abstract and public, and interface variables are public, static, and final, emphasizing the need for initialization at the time of declaration.', 'Extending an interface is explained, highlighting that a class can implement multiple interfaces with the same method, and the advantage of using an interface to resolve variable name conflicts is demonstrated practically.', 'Practical examples illustrate the ambiguity in accessing variables with the same name from different interfaces and the resolution using interface names, providing clear outputs.']}, {'end': 21403.196, 'start': 20910.612, 'title': 'Data structures: linear and hierarchical', 'summary': 'Explains linear data structures including stack and queue, emphasizing their operations and applications, with a detailed code example. it then covers the queue, highlighting its operations, usage in cpu scheduling, and a code example demonstrating its functionalities.', 'duration': 492.584, 'highlights': ['Stack: Operations and Example The chapter provides a detailed explanation of stack data structure, including its fundamental operations such as push, pop, and peek, and demonstrates its usage through a code example.', 'Queue: Operations and Usage The transcript explains the queue data structure, emphasizing its operations including enqueue and dequeue, and highlights its applications in CPU scheduling and resource sharing among multiple users.', 'Linear Data Structures: Introduction The chapter introduces linear data structures, highlighting their sequential and ordered nature, and categorizes them into stack, queue, and linked list.']}, {'end': 22778.259, 'start': 21403.596, 'title': 'Linear and hierarchical data structures', 'summary': 'Covers the operations on a queue and the concept and types of linked lists, followed by an overview of binary tree, binary heap, and hash table data structures, including their properties, applications, and methods in java.', 'duration': 1374.663, 'highlights': ['Linked list is a linear data structure with the collection of multiple nodes. Explains the concept of a linked list as a linear data structure.', 'Linked list has three types: singly linked list, doubly linked list, and circular linked list. Describes the types of linked lists and their characteristics.', 'Binary tree is a hierarchical tree data structure with root node, left subtree, and right subtree. Provides an overview of the binary tree data structure.', 'Binary heap is a complete binary tree with min heap and max heap properties. Explains the properties and applications of binary heap.', 'Hash table is a data structure implementing a dictionary ADT using an array and a hash function. Describes the concept and components of a hash table.']}, {'end': 23795.463, 'start': 22778.259, 'title': 'Linked list and hash map in java', 'summary': 'Demonstrates the implementation and operations of linked lists and hash maps in java, including methods such as push, pop, set, remove, size, conversion between array and linked list, as well as the internal structure, features, performance, and methods of hash maps, with a focus on hash map synchronization and complexity analysis. the chapter also covers the usage and methods of hash maps including clear, contains key, contains value, clone, is empty, get, key set, and size.', 'duration': 1017.204, 'highlights': ['The chapter demonstrates the implementation and operations of linked lists and hash maps in Java It covers the implementation and operations of linked lists and hash maps in Java, including methods such as push, pop, set, remove, size, conversion between array and linked list.', 'The output has been successfully generated and the elements which we have pushed into the stack are 100 200 and 300 It demonstrates the successful addition of elements (100, 200, 300) into the stack using the stack push method.', 'The elements before removing the element Apple are Apple banana grape and pineapple It shows the elements (Apple, banana, grape, pineapple) present before removing the element Apple from the linked list.', 'The important features of hash map are it is a part of Java util package. It extends an abstract class, that is, abstract map, which also provides an incomplete implementation of map interface. It highlights the important features of hash map, including its presence in the Java util package, extension of the abstract map class, and incomplete implementation of the map interface.', 'Hash map provides a constant time complexity for basic operations, that is, get and put if hash function is properly written, and it disperses the elements properly among the buckets. It explains the constant time complexity provided by hash map for basic operations like get and put, emphasizing the importance of a properly written hash function for efficient element dispersion among the buckets.']}], 'duration': 3977.79, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz019817673.jpg', 'highlights': ['Explores string immutability, string buffer, and string builder, java interfaces, interface nesting, method implementation, linear data structures like stack, queue, linked list, binary tree, binary heap, and hash table, including their operations, applications, and java methods used, with practical examples and performance analysis.', 'Java interfaces allow classes to implement behavior from multiple sources, solving the multiple inheritance problem in Java. Java interfaces enable classes to inherit properties and implement methods from different parent classes, addressing the limitation of multiple inheritance in Java.', 'The chapter demonstrates practical examples of using interfaces to access methods from different parent classes and solve the multiple inheritance problem in Java. Practical examples illustrate how interfaces allow classes to access methods from different parent classes and resolve the limitations of multiple inheritance in Java.', 'The class edureka2 implements both the methods from different interfaces successfully, confirming 3 as a prime number and 153 as an Armstrong number.', 'Stack: Operations and Example The chapter provides a detailed explanation of stack data structure, including its fundamental operations such as push, pop, and peek, and demonstrates its usage through a code example.', 'Queue: Operations and Usage The transcript explains the queue data structure, emphasizing its operations including enqueue and dequeue, and highlights its applications in CPU scheduling and resource sharing among multiple users.', 'Linked list is a linear data structure with the collection of multiple nodes. Explains the concept of a linked list as a linear data structure.', 'Binary tree is a hierarchical tree data structure with root node, left subtree, and right subtree. Provides an overview of the binary tree data structure.', 'Binary heap is a complete binary tree with min heap and max heap properties. Explains the properties and applications of binary heap.', 'Hash table is a data structure implementing a dictionary ADT using an array and a hash function. Describes the concept and components of a hash table.', 'The chapter demonstrates the implementation and operations of linked lists and hash maps in Java It covers the implementation and operations of linked lists and hash maps in Java, including methods such as push, pop, set, remove, size, conversion between array and linked list.', 'The important features of hash map are it is a part of Java util package. It extends an abstract class, that is, abstract map, which also provides an incomplete implementation of map interface. It highlights the important features of hash map, including its presence in the Java util package, extension of the abstract map class, and incomplete implementation of the map interface.', 'Hash map provides a constant time complexity for basic operations, that is, get and put if hash function is properly written, and it disperses the elements properly among the buckets. It explains the constant time complexity provided by hash map for basic operations like get and put, emphasizing the importance of a properly written hash function for efficient element dispersion among the buckets.']}, {'end': 25261.436, 'segs': [{'end': 24226.159, 'src': 'embed', 'start': 24200.69, 'weight': 0, 'content': [{'end': 24205.295, 'text': 'the constructor has the same name as the class and looks like how I have written in the code.', 'start': 24200.69, 'duration': 4.605}, {'end': 24212.434, 'text': 'So here in this example, dimension class constructor has a type information, as you can see that.', 'start': 24206.332, 'duration': 6.102}, {'end': 24217.716, 'text': 'so basically you can have an instance of dimension with all the attributes of a single type only.', 'start': 24212.434, 'duration': 5.282}, {'end': 24221.037, 'text': 'for example, you have a class dimension that is a for type T,', 'start': 24217.716, 'duration': 3.321}, {'end': 24226.159, 'text': 'and I have created three variables when I create a constructor for all these three values.', 'start': 24221.037, 'duration': 5.122}], 'summary': 'Constructor in dimension class defines type information and allows for single type attributes.', 'duration': 25.469, 'max_score': 24200.69, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz024200690.jpg'}, {'end': 24504.316, 'src': 'embed', 'start': 24472.555, 'weight': 2, 'content': [{'end': 24481.711, 'text': 'right?. So when I say get class dot, get name plus element, It will say the classes, this,', 'start': 24472.555, 'duration': 9.156}, {'end': 24485.818, 'text': 'and the name will be the integer type and the element will be the value.', 'start': 24481.711, 'duration': 4.107}, {'end': 24492.809, 'text': "Yes, let's execute and then you will understand what actually that statement does as I told you.", 'start': 24486.218, 'duration': 6.591}, {'end': 24495.489, 'text': 'element dot get.', 'start': 24493.647, 'duration': 1.842}, {'end': 24498.731, 'text': 'class dot get name is equal to element right?', 'start': 24495.489, 'duration': 3.242}, {'end': 24501.513, 'text': 'So element is Java dot.', 'start': 24499.091, 'duration': 2.422}, {'end': 24504.316, 'text': 'lang is a type of the class dot.', 'start': 24501.513, 'duration': 2.803}], 'summary': 'The code retrieves class name and element value in java.', 'duration': 31.761, 'max_score': 24472.555, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz024472555.jpg'}, {'end': 24639.988, 'src': 'embed', 'start': 24610.891, 'weight': 3, 'content': [{'end': 24615.234, 'text': 'because you can use all of them at once and all that refers to is an object.', 'start': 24610.891, 'duration': 4.343}, {'end': 24618.457, 'text': "So that's why I think typecasting is not required.", 'start': 24615.555, 'duration': 2.902}, {'end': 24621.518, 'text': 'Next implementing a non-generic algorithm.', 'start': 24618.917, 'duration': 2.601}, {'end': 24627.101, 'text': 'It can calculate the algorithm that works on various sort of items that are type safe as well.', 'start': 24622.059, 'duration': 5.042}, {'end': 24631.644, 'text': 'It can be a generic or non-generic no matter what it will implement everything.', 'start': 24627.462, 'duration': 4.182}, {'end': 24639.988, 'text': "Let's understand what is file handling in Java.", 'start': 24637.487, 'duration': 2.501}], 'summary': 'Java supports both generic and non-generic algorithms for file handling.', 'duration': 29.097, 'max_score': 24610.891, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz024610891.jpg'}, {'end': 24823.349, 'src': 'embed', 'start': 24797.067, 'weight': 1, 'content': [{'end': 24802.551, 'text': 'after that you have to write the information to the file and then you have to read the data from the file correct?', 'start': 24797.067, 'duration': 5.484}, {'end': 24807.576, 'text': "So now let's understand all these things in a much better way, have with the help of an example.", 'start': 24802.952, 'duration': 4.624}, {'end': 24813.183, 'text': 'First create a file in this case in order to create a file.', 'start': 24808.32, 'duration': 4.863}, {'end': 24815.164, 'text': 'You can use a create new file method.', 'start': 24813.223, 'duration': 1.941}, {'end': 24823.349, 'text': 'Okay, and this method returns true if the file was successfully created and it returns false if the file already exists, okay.', 'start': 24815.604, 'duration': 7.745}], 'summary': "Explains file creation using 'create new file' method, returning true for success and false for existing file.", 'duration': 26.282, 'max_score': 24797.067, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz024797067.jpg'}], 'start': 23796.295, 'title': 'Java generics, types, constructors, and file handling', 'summary': 'Explains widely used methods in hashmap, introduces the concept of generics in java, discusses the need for generics, describes different types of generics, and emphasizes benefits and examples. it also covers generic type constructors, functions, and file handling in java, emphasizing advantages like code reusability, type safety, and non-generic algorithm implementation. practical file operations and methods such as read, write, create, delete, and file information retrieval are also detailed with examples.', 'chapters': [{'end': 24163.887, 'start': 23796.295, 'title': 'Java generics and types explained', 'summary': 'Explains widely used methods in hashmap, introduces the concept of generics in java, discusses the need for generics, and describes the different types of generics in java, emphasizing the benefits and examples.', 'duration': 367.592, 'highlights': ['Generics in Java is a term that denotes a set of language features related to the definition and use of generic types and methods, forcing Java programmers to store specific types of objects. Introduces the concept of generics in Java and its impact on the storage of specific types of objects.', 'Java collections framework mostly utilizes classes that take parameter or argument of type object, which can be homogeneous or heterogeneous, impacting the code length and execution time. Describes the impact of using non-generic classes on code length and execution time in the Java collections framework.', 'Prior to generics, traditional approach involved conducting checks to assign the input to the variable of the right data type, leading to increased code length and execution time. Explains the drawbacks of the traditional approach and the resulting increase in code length and execution time.', 'Introduction of generics in Java automatically checks parameters at compile time and sets the data type by default, resulting in decreased execution time and code length. Emphasizes the benefits of using generics in terms of automatic parameter checks at compile time and reduced execution time and code length.', 'Four types of generics in Java are explained: generic type class, generic type interface, generic type method, and constructor first. Describes the different types of generics in Java, providing an overview of each type.']}, {'end': 24529.875, 'start': 24164.614, 'title': 'Generic type constructors', 'summary': 'Discussed how generic type constructors and functions work, including examples of defining and using generic constructors and functions with different types of arguments and the output displayed.', 'duration': 365.261, 'highlights': ['The chapter discussed how generic type constructors work and provided an example of creating a constructor for a class dimension with type information. The chapter explained the concept of generic type constructors and provided an example of creating a constructor for a class dimension with type information, showcasing how an instance of dimension can have attributes of a single type only.', 'The chapter explained an example of defining and using generic constructors with different types of arguments, such as strings and integers, and how the output displayed the elements based on the passed arguments. The chapter illustrated an example of defining and using generic constructors with different types of arguments, showing how the output displayed the elements based on the passed arguments, including examples of passing string and integer arguments and displaying the elements.', 'The chapter discussed generic functions and provided an example of a generic display method that can be called with different types of arguments, handling each of these methods based on the type of the arguments passed. The chapter explained generic functions and provided an example of a generic display method that can be called with different types of arguments, highlighting how the compiler handles each of these methods based on the type of the arguments passed.']}, {'end': 24723.903, 'start': 24530.295, 'title': 'Java generics and file handling', 'summary': 'Explains how java generics work, emphasizing the advantages including code reusability, type safety, and non-generic algorithm implementation, and also delves into file handling in java, covering file reading, writing, and the concept of streams.', 'duration': 193.608, 'highlights': ['Java generics allow for code reusability and type safety, enabling the composition of a strategy or interface once and use for any type, thus eliminating the need for individual typecasting. Java generics facilitate code reusability and type safety, eliminating the need for individual typecasting, thus enhancing efficiency and reducing type-related issues.', 'File handling in Java involves reading from and writing to files, utilizing the basic input output package for reading and writing streams, and necessitates the creation of a file object and specifying the file or directory name. File handling in Java encompasses reading from and writing to files, utilizing the basic input output package for reading and writing streams, and necessitates creating a file object and specifying the file or directory name.', 'The concept of streams in Java involves working with byte streams and character streams, with byte streams mainly incorporating byte data, while character streams incorporate characters, thus providing two types of streams. The concept of streams in Java encompasses working with byte streams and character streams, with each type handling specific data - byte streams for byte data and character streams for characters.']}, {'end': 25261.436, 'start': 24723.903, 'title': 'Java file methods and operations', 'summary': 'Covers various file methods like read, write, create new file, delete, exist, get name, get absolute path, length, list, and mkdir, used to perform java file operations. it also provides examples of creating, getting information from, writing to, and reading from a file, showcasing practical usage and output.', 'duration': 537.533, 'highlights': ['The chapter covers various file methods like read, write, create new file, delete, exist, get name, get absolute path, length, list, and mkdir, used to perform Java file operations. This provides an overview of the different file methods used for performing Java file operations, showcasing the variety of operations that can be performed.', 'It provides examples of creating, getting information from, writing to, and reading from a file, showcasing practical usage and output. The transcript includes practical examples of creating, getting information from, writing to, and reading from a file, demonstrating the application of the file methods in real-world scenarios.', "The method 'create new file' returns true if the file was successfully created and false if the file already exists. The 'create new file' method is explained, highlighting its return values and how it handles file creation scenarios.", "The process of writing to a file using the 'file writer' class and its write method is demonstrated, along with handling success and error scenarios. The process of writing to a file using the 'file writer' class and its write method is demonstrated, emphasizing the handling of success and error scenarios.", 'The Java program to read the data written into the file using the scanner and reader is showcased, detailing the reading process and output. The Java program to read the data written into the file using the scanner and reader is showcased, providing insights into the reading process and output.']}], 'duration': 1465.141, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz023796295.jpg', 'highlights': ['Java generics facilitate code reusability and type safety, eliminating the need for individual typecasting, thus enhancing efficiency and reducing type-related issues.', 'Introduction of generics in Java automatically checks parameters at compile time and sets the data type by default, resulting in decreased execution time and code length.', 'The chapter covers various file methods like read, write, create new file, delete, exist, get name, get absolute path, length, list, and mkdir, used to perform Java file operations.', 'The chapter explained an example of defining and using generic constructors with different types of arguments, such as strings and integers, and how the output displayed the elements based on the passed arguments.', 'The concept of streams in Java encompasses working with byte streams and character streams, with each type handling specific data - byte streams for byte data and character streams for characters.']}, {'end': 28657.079, 'segs': [{'end': 25802.078, 'src': 'embed', 'start': 25771.236, 'weight': 0, 'content': [{'end': 25774.177, 'text': 'Now, let us try to execute a program to understand this in a much better way.', 'start': 25771.236, 'duration': 2.941}, {'end': 25783.646, 'text': 'As you can see, this particular example is based on case 2, and this particular class is a superclass which is not serializable,', 'start': 25775.12, 'duration': 8.526}, {'end': 25789.47, 'text': 'and this particular class is a subclass which is implementing serializable interface manually.', 'start': 25783.646, 'duration': 5.824}, {'end': 25793.072, 'text': 'Now, let us try to execute this program and see how does it work.', 'start': 25790.23, 'duration': 2.842}, {'end': 25802.078, 'text': 'As you can see the program has been successfully executed and the output is been generated here.', 'start': 25797.995, 'duration': 4.083}], 'summary': 'Example program executed successfully, demonstrating serialization with superclass and subclass.', 'duration': 30.842, 'max_score': 25771.236, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz025771236.jpg'}, {'end': 25953.908, 'src': 'embed', 'start': 25925.955, 'weight': 13, 'content': [{'end': 25933.319, 'text': 'but the only difference is that it is capable to offer customized a serialization where you get to decide the objects to be stored in the stream.', 'start': 25925.955, 'duration': 7.364}, {'end': 25939.862, 'text': 'The externalizable interface is available in the java.io library and it provides two methods,', 'start': 25934.179, 'duration': 5.683}, {'end': 25948.267, 'text': 'which is public void write external method and public void read external methods, and both of them throw an exception.', 'start': 25939.862, 'duration': 8.405}, {'end': 25953.908, 'text': 'the key differences between serialization and externalizable interface are as follows.', 'start': 25948.267, 'duration': 5.641}], 'summary': 'The externalizable interface in java.io library provides customizable serialization, including write and read methods, with key differences from regular serialization.', 'duration': 27.953, 'max_score': 25925.955, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz025925955.jpg'}, {'end': 26082.648, 'src': 'embed', 'start': 26055.58, 'weight': 7, 'content': [{'end': 26058.861, 'text': 'Now, let us try to execute this program and see how does it work.', 'start': 26055.58, 'duration': 3.281}, {'end': 26064.464, 'text': 'As you can see,', 'start': 26063.863, 'duration': 0.601}, {'end': 26070.906, 'text': 'the process has been successfully executed and the objects have been serialized as well as DC realized using the externalizable interface.', 'start': 26064.464, 'duration': 6.442}, {'end': 26075.008, 'text': 'Now, let us move on to our next topic, which is transient keyword.', 'start': 26071.887, 'duration': 3.121}, {'end': 26078.364, 'text': 'The transient keyword is a reserved keyword in Java.', 'start': 26075.822, 'duration': 2.542}, {'end': 26082.648, 'text': 'It is used as a variable modifier at the time of serialization process.', 'start': 26079.005, 'duration': 3.643}], 'summary': 'Program successfully executed, objects serialized, and dc realized using externalizable interface. next topic: transient keyword.', 'duration': 27.068, 'max_score': 26055.58, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz026055580.jpg'}, {'end': 26151.078, 'src': 'embed', 'start': 26127.176, 'weight': 10, 'content': [{'end': 26134.7, 'text': 'After a hectic research the developers at Oracle found out few flaws in the design of serialization procedure which pose a threat to the data.', 'start': 26127.176, 'duration': 7.524}, {'end': 26141.563, 'text': 'In the year 1997 Mark Reynold states, we like to call serialization the gift that keeps on giving.', 'start': 26135.34, 'duration': 6.223}, {'end': 26146.197, 'text': 'The type of gift it keeps on giving is security vulnerabilities.', 'start': 26142.156, 'duration': 4.041}, {'end': 26151.078, 'text': 'Probably the third of all Java vulnerabilities have involved serialization.', 'start': 26146.817, 'duration': 4.261}], 'summary': 'Oracle developers found flaws in serialization, leading to 1/3 of java vulnerabilities by 1997.', 'duration': 23.902, 'max_score': 26127.176, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz026127176.jpg'}, {'end': 26552.67, 'src': 'embed', 'start': 26526.88, 'weight': 3, 'content': [{'end': 26531.406, 'text': 'Now the code in the main method is executed as a main thread itself, right?', 'start': 26526.88, 'duration': 4.526}, {'end': 26542.481, 'text': 'So main method will have the instructions written within it and all those instructions are being executed as a part of the main thread in a sequence,', 'start': 26531.827, 'duration': 10.654}, {'end': 26543.242, 'text': 'one after the other.', 'start': 26542.481, 'duration': 0.761}, {'end': 26550.169, 'text': 'Now, what will happen if you are going to do a long running operation within the main itself?', 'start': 26543.806, 'duration': 6.363}, {'end': 26552.67, 'text': 'it can take time, right?', 'start': 26550.169, 'duration': 2.501}], 'summary': 'Main method executes instructions sequentially as part of the main thread.', 'duration': 25.79, 'max_score': 26526.88, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz026526880.jpg'}, {'end': 26757.714, 'src': 'embed', 'start': 26719.87, 'weight': 6, 'content': [{'end': 26724.153, 'text': 'now, when we have this, uh, main method coming in.', 'start': 26719.87, 'duration': 4.283}, {'end': 26732.719, 'text': 'so guys, uh, we will come here and say that main method represents main thread.', 'start': 26724.153, 'duration': 8.566}, {'end': 26735.621, 'text': 'right, so main method represents main thread.', 'start': 26732.719, 'duration': 2.902}, {'end': 26753.133, 'text': 'so whatever we write in here will be executed by main thread and threads always execute the jobs in a sequence.', 'start': 26735.621, 'duration': 17.512}, {'end': 26757.714, 'text': "so whatever the job you're gonna give to the a thread, they're gonna execute in a sequence.", 'start': 26753.133, 'duration': 4.581}], 'summary': 'Main method represents main thread, executing jobs in sequence.', 'duration': 37.844, 'max_score': 26719.87, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz026719870.jpg'}, {'end': 26994.553, 'src': 'embed', 'start': 26963.274, 'weight': 2, 'content': [{'end': 26967.738, 'text': 'So my task is a new my task, right? and coming here.', 'start': 26963.274, 'duration': 4.464}, {'end': 26971.28, 'text': 'I will say task dot execute the task.', 'start': 26967.758, 'duration': 3.522}, {'end': 26972.861, 'text': 'If you will see now what we have done.', 'start': 26971.42, 'duration': 1.441}, {'end': 26982.966, 'text': 'We have made my task as job 2 and this guy has job 3 and this goes like job 4 now when I will run this code.', 'start': 26973.381, 'duration': 9.585}, {'end': 26988.83, 'text': 'What you will find is that application started printing of documents started.', 'start': 26983.247, 'duration': 5.583}, {'end': 26994.553, 'text': 'So printer 2 is in use and thereafter printer 1 is in use right?', 'start': 26989.05, 'duration': 5.503}], 'summary': 'Application prints documents using printers 1 and 2.', 'duration': 31.279, 'max_score': 26963.274, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz026963274.jpg'}, {'end': 27059.286, 'src': 'embed', 'start': 27031.441, 'weight': 11, 'content': [{'end': 27033.802, 'text': 'because of sequential operation here.', 'start': 27031.441, 'duration': 2.361}, {'end': 27035.022, 'text': 'right, so we are.', 'start': 27033.802, 'duration': 1.22}, {'end': 27037.063, 'text': 'we are seeing a sequential operation.', 'start': 27035.022, 'duration': 2.041}, {'end': 27049.447, 'text': 'so that is the reason till job 2 is not completed below mentioned instructions or the jobs they are waiting now in case job 2 is a long running operation,', 'start': 27037.063, 'duration': 12.384}, {'end': 27059.286, 'text': 'right. so in case job 2 is a long running operation, consider this guy is going to print several documents right.', 'start': 27049.447, 'duration': 9.839}], 'summary': 'Job 2 is not completed due to sequential operation, potentially long-running.', 'duration': 27.845, 'max_score': 27031.441, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz027031441.jpg'}, {'end': 27843.015, 'src': 'embed', 'start': 27816.382, 'weight': 8, 'content': [{'end': 27824.046, 'text': 'So how they want to work and what can be the you know scenarios which we can observe when they are executed.', 'start': 27816.382, 'duration': 7.664}, {'end': 27825.87, 'text': 'So what is multi-threading?', 'start': 27824.77, 'duration': 1.1}, {'end': 27832.692, 'text': 'So, guys, multi-threading is the ability of a program to execute more than one threads concurrently,', 'start': 27826.17, 'duration': 6.522}, {'end': 27837.174, 'text': 'where each thread is handling a different task at the same time, right?', 'start': 27832.692, 'duration': 4.482}, {'end': 27843.015, 'text': 'So that the available resources can be utilized in the most optimal manner.', 'start': 27837.494, 'duration': 5.521}], 'summary': 'Multithreading allows program to execute multiple tasks concurrently for optimal resource utilization.', 'duration': 26.633, 'max_score': 27816.382, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz027816382.jpg'}, {'end': 28136.995, 'src': 'embed', 'start': 28103.959, 'weight': 1, 'content': [{'end': 28107.061, 'text': "I'm going to have a reference to the printer in the constructor.", 'start': 28103.959, 'duration': 3.102}, {'end': 28113.404, 'text': 'So I will take printer P here and I will say Peter is P.', 'start': 28107.621, 'duration': 5.783}, {'end': 28119.427, 'text': 'So in the run method here, I will say Peter dot print the document.', 'start': 28113.404, 'duration': 6.023}, {'end': 28121.088, 'text': 'So I need 10 copies.', 'start': 28119.487, 'duration': 1.601}, {'end': 28124.709, 'text': "So this is like John's profile.", 'start': 28121.508, 'duration': 3.201}, {'end': 28128.171, 'text': "Let's see John's profile.", 'start': 28125.47, 'duration': 2.701}, {'end': 28129.01, 'text': 'is the name.', 'start': 28128.55, 'duration': 0.46}, {'end': 28136.995, 'text': "So now once I created the printer object, I'll create the object of my thread.", 'start': 28129.751, 'duration': 7.244}], 'summary': 'Using printer reference in constructor, printing 10 copies in run method', 'duration': 33.036, 'max_score': 28103.959, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz028103959.jpg'}, {'end': 28192.61, 'src': 'embed', 'start': 28167.258, 'weight': 14, 'content': [{'end': 28173.603, 'text': 'so since my thread is having reference to the printer object, so printer is copied to the pp,', 'start': 28167.258, 'duration': 6.345}, {'end': 28176.885, 'text': 'is copied the period and you are doing a print documents here.', 'start': 28173.603, 'duration': 3.282}, {'end': 28178.947, 'text': 'so i will say mref dot.', 'start': 28176.885, 'duration': 2.062}, {'end': 28182.167, 'text': 'Now what will be the benefit?', 'start': 28180.946, 'duration': 1.221}, {'end': 28186.608, 'text': 'The benefit is that printing is happening in a separate thread.', 'start': 28182.207, 'duration': 4.401}, {'end': 28187.928, 'text': "That's like my thread.", 'start': 28186.928, 'duration': 1}, {'end': 28192.61, 'text': 'So now when you run this code, you see application started, application finished.', 'start': 28188.248, 'duration': 4.362}], 'summary': 'Printer object is copied to pp, enabling printing in a separate thread.', 'duration': 25.352, 'max_score': 28167.258, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz028167258.jpg'}], 'start': 25261.436, 'title': 'Java file operations, serialization, and threads', 'summary': 'Covers java file operations, serialization process, advantages, and controversies, overview of java threads, including lifecycle and usage, differences between thread class and runnable interface, and concepts of multi-threading, thread synchronization, and thread pool management.', 'chapters': [{'end': 25309.095, 'start': 25261.436, 'title': 'File operations in java', 'summary': 'Explains the process to create, write, and read from a file in java, highlighting java as a prominent programming language and emphasizing the various file operations that can be performed.', 'duration': 47.659, 'highlights': ['Java is highlighted as the prominent programming language for file operations.', 'Explanation of how to read, write, and get information from a file in Java is provided.', 'The process to create a file and perform various file operations is explained.']}, {'end': 26189.723, 'start': 25315.336, 'title': 'Serialization in java: process, advantages, and examples', 'summary': 'Explains serialization in java, its process, advantages, and examples, highlighting its role in transferring object code between jvms, reasons for using serialization, and controversies surrounding its security vulnerabilities.', 'duration': 874.387, 'highlights': ['Serialization enables multiple computer systems to design, share, and execute objects simultaneously. Serialization allows multiple computer systems to design, share, and execute objects simultaneously, promoting communication and collaboration.', 'Serialization minimizes time consumption by caching giant objects and works across different JVMs running on different architectures or operating systems. Serialization minimizes time consumption by caching giant objects and works across different JVMs, promoting cross JVM synchronization.', 'Serialization is proven to be simple, easy to understand, and universally familiar to developers from different backgrounds. Serialization is proven to be simple, easy to understand, and universally familiar to developers from different backgrounds, ensuring ease of use and customization.', 'The major disadvantages of serialization in Java include objects becoming brittle during deserialization, inefficient memory utilization, and lack of fine-grained control to access objects. The major disadvantages of serialization in Java include objects becoming brittle during deserialization, inefficient memory utilization, and lack of fine-grained control to access objects, highlighting its limitations.', 'Serialization could be removed or replaced in upcoming updates of Java due to security vulnerabilities and may not be an idealistic option for beginners in Java projects. Serialization could be removed or replaced in upcoming updates of Java due to security vulnerabilities and may not be an idealistic option for beginners in Java projects, emphasizing its potential future changes and drawbacks for beginners.']}, {'end': 27259.645, 'start': 26190.604, 'title': 'Java threads overview', 'summary': 'Provides an overview of java threads, including their lifecycle, creation, and usage, emphasizing the importance of using threads for long running operations in order to prevent sluggish behavior and hanging of applications executed by the main thread.', 'duration': 1069.041, 'highlights': ['Java thread is a lightweight sub process in an application, and every Java program has at least one main thread. A Java thread is a lightweight sub process in an application, and every Java program will have at least one thread known as the main thread.', 'The lifecycle of a Java thread includes states such as new, runnable, running, waiting, and terminated, with each state representing different stages of execution. The lifecycle of a Java thread includes states such as new, runnable, running, waiting, and terminated, each representing different stages of execution.', 'Creating a separate thread is essential for long running operations to prevent blocking of the main thread, thereby avoiding sluggish behavior and application hanging. Creating a separate thread is essential for long running operations to prevent blocking of the main thread, thereby avoiding sluggish behavior and application hanging.', 'The main thread executes code sequentially, and long running operations within the main thread can lead to blocking and sluggish behavior in the application. The main thread executes code sequentially, and long running operations within the main thread can lead to blocking and sluggish behavior in the application.']}, {'end': 27948.825, 'start': 27260.025, 'title': 'Java threads and multi-threading', 'summary': 'Explains the concept of java threads, including the execution of parallel tasks, differences between thread class and the runnable interface, and the importance of the main thread. it also delves into the concept of multi-threading, highlighting the ability of a program to execute multiple threads concurrently and the optimal utilization of resources. the chapter concludes with a demonstration of multiple threads in action.', 'duration': 688.8, 'highlights': ['Java threads execute parallel tasks, demonstrating the independent execution of the main thread and child threads within the same process. The chapter explains the independent execution of the main thread and child threads, illustrating that they do not interfere with each other and can execute parallel tasks within the same process.', 'The differences between the thread class and the runnable interface are discussed, emphasizing the constraints of multiple inheritance and the benefits of loose coupling provided by the runnable interface. The discussion highlights the constraints of multiple inheritance in Java, the benefits of loose coupling provided by the runnable interface, and the scenarios where extending the thread class or implementing the runnable interface is appropriate.', 'The importance of the main thread in Java applications is emphasized, showcasing its role in executing and terminating the program, as well as its ability to spawn child threads. The chapter emphasizes the crucial role of the main thread in executing and terminating Java applications, along with its capability to spawn child threads and manage their execution.', 'Multi-threading is explained as the ability of a program to execute multiple threads concurrently, highlighting the optimal utilization of resources and the switching between threads to perform different tasks simultaneously. The chapter delves into the concept of multi-threading, highlighting its ability to execute multiple threads concurrently, optimize resource utilization, and enable switching between threads to perform different tasks simultaneously.', 'A demonstration of multiple threads in action is presented, showcasing the introduction of multiple threads and their concurrent execution to perform different tasks. The chapter concludes with a demonstration of multiple threads in action, showcasing their concurrent execution to perform different tasks and highlighting the practical application of multi-threading concepts.']}, {'end': 28657.079, 'start': 27948.825, 'title': 'Thread synchronization and thread pool', 'summary': 'Discusses the concept of thread synchronization and its importance in multi-threading, emphasizing the need for synchronization when multiple threads are working on the same single object. it also introduces the concept of thread pool, which manages a pool of worker threads and contains a queue for tasks waiting to be executed.', 'duration': 708.254, 'highlights': ['Thread Synchronization Importance It highlights the importance of synchronization when multiple threads are working on the same single object, emphasizing the need for synchronization in multi-threading operations.', 'Synchronized Method It explains the synchronized keyword, stating that it acquires a lock on the method, preventing other threads from accessing it until the lock is released, leading to the same output without the need for join method calls on each thread.', 'Thread Pool Concept It introduces the concept of a thread pool, which manages a pool of worker threads and contains a queue for tasks waiting to be executed, providing automation for thread execution.']}], 'duration': 3395.643, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz025261436.jpg', 'highlights': ['Java is prominent for file operations, including read, write, and file information retrieval.', 'Serialization enables simultaneous object design, sharing, and execution across multiple systems.', 'Serialization minimizes time consumption by caching giant objects and works across different JVMs.', 'Serialization is simple, easy to understand, and universally familiar to developers.', 'Major disadvantages of serialization include objects becoming brittle during deserialization and inefficient memory utilization.', 'Java thread is a lightweight sub process in an application, and every Java program has at least one main thread.', 'The lifecycle of a Java thread includes states such as new, runnable, running, waiting, and terminated.', 'Creating a separate thread is essential for preventing blocking of the main thread and avoiding sluggish behavior.', 'Java threads execute parallel tasks, demonstrating the independent execution of the main thread and child threads.', 'Differences between the thread class and the runnable interface are discussed, emphasizing the benefits of loose coupling provided by the runnable interface.', 'The importance of the main thread in Java applications is emphasized, showcasing its role in executing and terminating the program.', 'Multi-threading enables the program to execute multiple threads concurrently, optimizing resource utilization.', 'Thread Synchronization Importance It highlights the importance of synchronization when multiple threads are working on the same single object.', 'Synchronized Method It explains the synchronized keyword, stating that it acquires a lock on the method, preventing other threads from accessing it.', 'Thread Pool Concept It introduces the concept of a thread pool, which manages a pool of worker threads and contains a queue for tasks waiting to be executed.']}, {'end': 31307.197, 'segs': [{'end': 28825.252, 'src': 'embed', 'start': 28801.637, 'weight': 2, 'content': [{'end': 28811.287, 'text': 'What is Java regex? So a Java regex is an API which is used to define a pattern for searching or manipulating the strings.', 'start': 28801.637, 'duration': 9.65}, {'end': 28817.334, 'text': 'It is widely used to define the constraint on strings such as password and email validation.', 'start': 28811.888, 'duration': 5.446}, {'end': 28825.252, 'text': 'So you can see in this below GIF over here that it is trying to search for a regex that is a regular expression,', 'start': 28818.05, 'duration': 7.202}], 'summary': 'Java regex api defines patterns for string manipulation, widely used for password and email validation.', 'duration': 23.615, 'max_score': 28801.637, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz028801637.jpg'}, {'end': 30179.853, 'src': 'embed', 'start': 30144.703, 'weight': 0, 'content': [{'end': 30152.525, 'text': "if the result is true, then I'm using assert equals to true, and if the result is false, I'm giving assert is equal to false.", 'start': 30144.703, 'duration': 7.822}, {'end': 30155.326, 'text': "So let's check the output.", 'start': 30153.345, 'duration': 1.981}, {'end': 30161.798, 'text': "So I'm going to run it as a test ng test and let's check for the output.", 'start': 30157.856, 'duration': 3.942}, {'end': 30174.063, 'text': 'So you can see here first the valid email addresses.', 'start': 30169.281, 'duration': 4.782}, {'end': 30175.184, 'text': 'till here, right?', 'start': 30174.063, 'duration': 1.121}, {'end': 30179.853, 'text': "So these are the email addresses which are valid, and that's true.", 'start': 30176.55, 'duration': 3.303}], 'summary': 'Using assert equals to validate test ng output for valid email addresses.', 'duration': 35.15, 'max_score': 30144.703, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz030144703.jpg'}, {'end': 30240.159, 'src': 'embed', 'start': 30207.608, 'weight': 3, 'content': [{'end': 30209.589, 'text': 'the code was working perfectly fine.', 'start': 30207.608, 'duration': 1.981}, {'end': 30217.954, 'text': "And that's a reason so, even if I have to check the result of running class email validator test, you can check all these.", 'start': 30209.689, 'duration': 8.265}, {'end': 30219.955, 'text': 'the tests that was run was to.', 'start': 30217.954, 'duration': 2.001}, {'end': 30225.881, 'text': 'one is valid and one was invalid, and this is the class name which is followed by a package.', 'start': 30219.955, 'duration': 5.926}, {'end': 30232.029, 'text': 'On both the default suit and test, the test was run within these many seconds.', 'start': 30226.542, 'duration': 5.487}, {'end': 30240.159, 'text': 'Yes, so this is how you need to validate the given email address and check whether it is invalid or invalid.', 'start': 30232.77, 'duration': 7.389}], 'summary': 'Code ran valid and invalid email tests in seconds.', 'duration': 32.551, 'max_score': 30207.608, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz030207608.jpg'}, {'end': 30909.315, 'src': 'embed', 'start': 30882.579, 'weight': 1, 'content': [{'end': 30886.302, 'text': "It's telling connected and it is asking me to type whatever I want.", 'start': 30882.579, 'duration': 3.723}, {'end': 30891.266, 'text': "I'll go on typing even though I wrote so much it still did not display override.", 'start': 30886.842, 'duration': 4.424}, {'end': 30899.692, 'text': 'So it has the ability to enter as many number of lines and you can set as many number of requests that you want to the server right?', 'start': 30891.326, 'duration': 8.366}, {'end': 30904.412, 'text': "So now, when I check the server, it's telling client accepted.", 'start': 30900.35, 'duration': 4.062}, {'end': 30905.853, 'text': "It's displaying what all I wrote.", 'start': 30904.492, 'duration': 1.361}, {'end': 30907.554, 'text': "It's displaying like hi everyone.", 'start': 30905.893, 'duration': 1.661}, {'end': 30909.315, 'text': 'I welcome you to the YouTube channel.', 'start': 30907.594, 'duration': 1.721}], 'summary': "The server can accept many requests and display the typed content, including 'hi everyone' and a youtube channel welcome message.", 'duration': 26.736, 'max_score': 30882.579, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz030882579.jpg'}], 'start': 28657.119, 'title': 'Java regex, thread methods, and socket programming', 'summary': 'Covers the basics of regular expressions in java, including the definition, usage, and categories, along with explanations and examples of character class, quantifiers, and metacharacters. it also demonstrates the process of matching and validating email addresses, and discusses java socket programming, including connection-oriented and connectionless programming, socket and socket server classes, client-side and server-side programming, and an overview of java design patterns.', 'chapters': [{'end': 29346.888, 'start': 28657.119, 'title': 'Java regex and thread methods', 'summary': 'Covers the basics of regular expressions in java, including the definition, usage, and categories of regular expressions, and also explains the various methods of the matcher and pattern classes, demonstrating their functionality with code examples.', 'duration': 689.769, 'highlights': ['The chapter explains the basics of regular expressions in Java, including the definition, usage, and categories of regular expressions.', 'It provides an overview of the various methods of the Matcher class, such as Boolean matches, Boolean find, Boolean find in start, string group, int start, int end, and group count, and how they are used to perform match operations on a character sequence.', 'The transcript details the different methods of the Pattern class, such as static pattern compile, matcher match, static boolean matches, string split, and string pattern, and their respective functionalities.', 'The transcript includes code examples demonstrating the usage of the Matcher and Pattern classes to match input strings with regular expressions, displaying the boolean result of the matching process.', 'It covers the various categories of regular expressions, such as simple class, negation, range, union, intersection, subtraction, and provides examples to illustrate their functionality.']}, {'end': 29744.075, 'start': 29347.628, 'title': 'Regex: character class, quantifiers, metacharacters', 'summary': 'Explains character class, quantifiers and meta characters in regex, including examples and output, with detailed explanations on their functionality and usage.', 'duration': 396.447, 'highlights': ['The chapter explains character class, quantifiers and meta characters in regex The main topic of the chapter, encompassing the key areas of discussion.', 'Quantifier methods include X followed by a question mark, X plus, X with a star, X followed by an end within the curly braces, n with a comma, and Y comma Z Detailed explanation of various quantifier methods, providing a comprehensive understanding of their usage and syntax.', 'The example provides detailed explanations on the functionality and usage of quantifiers with corresponding output Demonstration of how quantifiers work with specific examples and corresponding output.', 'Meta characters such as dot, D, capital D, S, capital S, W, and capital B are explained, with examples and outputs demonstrating their usage Detailed explanation of various meta characters, including examples and outputs to illustrate their functionality and usage.']}, {'end': 30249.651, 'start': 29745.256, 'title': 'Regular expression demo and email validation', 'summary': 'Demonstrates how to use regular expressions to find patterns within a given string, including a demonstration of email validation, and explains the process of matching and validating email addresses using java classes and unit testing, with examples of valid and invalid email addresses.', 'duration': 504.395, 'highlights': ['The chapter demonstrates matching and validating email addresses using Java classes and unit testing, with examples of valid and invalid email addresses. It shows the process of matching and validating email addresses using Java classes and unit testing, with examples of valid and invalid email addresses.', 'The chapter explains how to use regular expressions to find patterns within a given string, including a demonstration of email validation. It explains how to use regular expressions to find patterns within a given string, including a demonstration of email validation.', "The chapter demonstrates a small demo of using regular expressions to find a given pattern within a string, with an example of matching the pattern 'YouTube channel' and explaining case sensitivity in pattern matching. It demonstrates a small demo of using regular expressions to find a given pattern within a string, with an example of matching the pattern 'YouTube channel' and explaining case sensitivity in pattern matching."]}, {'end': 30951.978, 'start': 30249.991, 'title': 'Java socket programming', 'summary': 'Discusses java socket programming, covering the different aspects of socket programming, including connection-oriented and connectionless programming, methods of socket and socket server classes, client-side programming, server-side programming, and a demo of establishing a connection.', 'duration': 701.987, 'highlights': ['Java socket programming is used for communication between applications running on different Java runtime environments, either connection oriented or connection less. Java socket programming enables communication between applications on different Java runtime environments, supporting both connection-oriented and connectionless modes.', 'Socket and server socket classes are used for connection-oriented socket programming, while datagram socket and datagram packet are used for connectionless programming. Socket and server socket classes support connection-oriented programming, while datagram socket and datagram packet are used for connectionless programming.', "The client in socket programming must have the IP address of the server and the port number to connect to the server and send a request. In socket programming, the client requires the server's IP address and port number to establish a connection and send requests.", 'The socket is bound to a port number so that the TCP layer can identify the application that data is destined to be sent to. Sockets are bound to port numbers to allow the TCP layer to identify the application to which data is destined to be sent.', 'The socket programming must establish a connection between the server and the client in order to process requests and send responses back to the client. Socket programming involves establishing a connection between the server and the client to process requests and send responses back.', 'Methods for socket class include get input stream, get output stream, and close, while socket server class includes accept and close methods. Socket class methods include get input stream, get output stream, and close, while socket server class methods include accept and close.', 'Client-side programming involves sending requests to the server, communicating with the server, using streams for input and output data, and closing the connection. Client-side programming entails sending requests to the server, communication using streams, and closing the connection.', 'Server-side programming involves waiting for client connections, communication using server socket, input and output streams, and closing the connection. Server-side programming includes waiting for client connections, communication using server socket, input and output streams, and closing the connection.', 'The demonstration illustrates the workings of the client and server programs, including establishing a connection, sending requests, accepting requests, and displaying responses. The demonstration showcases the client and server programs, demonstrating the process of establishing a connection, sending and accepting requests, and displaying responses.']}, {'end': 31307.197, 'start': 30952.218, 'title': 'Java design patterns overview', 'summary': 'Discusses client and server-side programming using sockets and java, followed by an introduction to java design patterns, including their structure and types, with a focus on creational design patterns and the practical application of the factory design pattern in java. it also covers the categories and template of design patterns as described by the original authors, and the types of java design patterns.', 'duration': 354.979, 'highlights': ['The chapter discusses the practical application of the factory design pattern in Java, including the UML diagram and the execution of the pattern to find the cost of each network for a specific number of minutes. The practical application of the factory design pattern in Java is discussed, demonstrating the UML diagram and execution of the pattern to calculate the cost of each network for a specific number of minutes.', 'The chapter provides an overview of the structure and types of Java design patterns, specifically focusing on creational design patterns and their classification, such as the factory design pattern, abstract factory pattern, singleton pattern, prototype pattern, builder pattern, and object pool pattern. An overview of the structure and types of Java design patterns, particularly emphasizing creational design patterns and their classification, is presented, including the different types of creational design patterns.', 'The chapter introduces the concept of client and server-side programming using sockets and Java, emphasizing the establishment of a connection using sockets and their interlinkage between programs running on the same network. An introduction to client and server-side programming using sockets and Java is provided, highlighting the establishment of a connection using sockets and their interlinkage between programs on the same network.']}], 'duration': 2650.078, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz028657119.jpg', 'highlights': ['The chapter provides an overview of the various methods of the Matcher class and the different methods of the Pattern class, along with code examples.', 'The chapter explains character class, quantifiers, and meta characters in regex, providing detailed explanations and examples of their functionality.', 'The chapter demonstrates matching and validating email addresses using Java classes and unit testing, with examples of valid and invalid email addresses.', 'Java socket programming enables communication between applications on different Java runtime environments, supporting both connection-oriented and connectionless modes.', 'The chapter discusses the practical application of the factory design pattern in Java, including the UML diagram and the execution of the pattern.']}, {'end': 32343.691, 'segs': [{'end': 31401.455, 'src': 'embed', 'start': 31372.916, 'weight': 1, 'content': [{'end': 31377.72, 'text': 'So this is a program for our JDBC connector, which will be connecting to our MySQL database.', 'start': 31372.916, 'duration': 4.804}, {'end': 31383.785, 'text': 'And this is a program for the operations, which we will be performing on our MySQL database.', 'start': 31378.501, 'duration': 5.284}, {'end': 31386.327, 'text': 'Now, if I execute this program,', 'start': 31384.445, 'duration': 1.882}, {'end': 31393.112, 'text': 'this program will throw an error because I have a virtual machine on my system which will be using all the virtual ports.', 'start': 31386.327, 'duration': 6.785}, {'end': 31397.015, 'text': 'So before I begin this program, I need to switch off all the VMware ports.', 'start': 31393.572, 'duration': 3.443}, {'end': 31401.455, 'text': "Here, you can see that I'm switching off all the VMware tasks.", 'start': 31398.354, 'duration': 3.101}], 'summary': 'Program for jdbc connector connecting to mysql database encounters errors due to vmware virtual ports.', 'duration': 28.539, 'max_score': 31372.916, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz031372916.jpg'}, {'end': 31729.322, 'src': 'embed', 'start': 31698.87, 'weight': 4, 'content': [{'end': 31700.774, 'text': 'Now let us execute this practically.', 'start': 31698.87, 'duration': 1.904}, {'end': 31706.656, 'text': 'So this particular segment of code deals with the bookholder ID, name, and account number.', 'start': 31701.434, 'duration': 5.222}, {'end': 31710.016, 'text': 'And the next one is related to the library card.', 'start': 31707.136, 'duration': 2.88}, {'end': 31718.759, 'text': 'And finally, this code will give us the details of libraries such as library name, bookholder name, bookholder ID, and many more.', 'start': 31710.437, 'duration': 8.322}, {'end': 31720.88, 'text': 'And finally, the adapter class.', 'start': 31719.319, 'duration': 1.561}, {'end': 31726.121, 'text': 'This class is going to interact with all the other classes and get the details which we need.', 'start': 31721.36, 'duration': 4.761}, {'end': 31729.322, 'text': 'Now, let us try to execute this code and see the output.', 'start': 31726.641, 'duration': 2.681}], 'summary': 'Code handles bookholder, library card, and library details. adapter class interacts with other classes.', 'duration': 30.452, 'max_score': 31698.87, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz031698870.jpg'}, {'end': 31936.398, 'src': 'embed', 'start': 31910.731, 'weight': 8, 'content': [{'end': 31918.216, 'text': 'The invoker objects, looks for an appropriate object which can handle this command and pass the command to the corresponding object,', 'start': 31910.731, 'duration': 7.485}, {'end': 31920.218, 'text': 'and that object executes the command.', 'start': 31918.216, 'duration': 2.002}, {'end': 31923.63, 'text': 'It is also known as action or transaction.', 'start': 31920.968, 'duration': 2.662}, {'end': 31932.195, 'text': 'The major advantage of command design pattern is it separates the object that invokes the operation with the object that actually performs the operation.', 'start': 31924.31, 'duration': 7.885}, {'end': 31936.398, 'text': 'Let us deal with an example to understand command design pattern in a better way.', 'start': 31932.816, 'duration': 3.582}], 'summary': 'Command design pattern separates object invocation from execution, providing better organization and clarity.', 'duration': 25.667, 'max_score': 31910.731, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz031910731.jpg'}, {'end': 32133.881, 'src': 'embed', 'start': 32105.617, 'weight': 5, 'content': [{'end': 32107.537, 'text': 'These patterns are widely used in Spring.', 'start': 32105.617, 'duration': 1.92}, {'end': 32111.098, 'text': 'JEE design patterns are further classified as below.', 'start': 32108.257, 'duration': 2.841}, {'end': 32113.619, 'text': 'They are MVC design pattern.', 'start': 32111.898, 'duration': 1.721}, {'end': 32115.499, 'text': 'dependency injection pattern.', 'start': 32113.619, 'duration': 1.88}, {'end': 32117.28, 'text': 'DAO design pattern.', 'start': 32115.499, 'duration': 1.781}, {'end': 32118.98, 'text': 'business delegate pattern.', 'start': 32117.28, 'duration': 1.7}, {'end': 32120.64, 'text': 'intercepting filter pattern.', 'start': 32118.98, 'duration': 1.66}, {'end': 32122.041, 'text': 'service locator pattern.', 'start': 32120.64, 'duration': 1.401}, {'end': 32123.301, 'text': 'transfer object pattern.', 'start': 32122.041, 'duration': 1.26}, {'end': 32127.716, 'text': 'Let us now discuss some of the important JEE design patterns practically.', 'start': 32124.053, 'duration': 3.663}, {'end': 32130.618, 'text': 'The first one would be MVC design pattern.', 'start': 32128.316, 'duration': 2.302}, {'end': 32133.881, 'text': 'The MVC design pattern is defined as follows.', 'start': 32131.199, 'duration': 2.682}], 'summary': 'Jee design patterns include mvc, dependency injection, dao, business delegate, intercepting filter, service locator, and transfer object patterns.', 'duration': 28.264, 'max_score': 32105.617, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz032105617.jpg'}, {'end': 32206.255, 'src': 'embed', 'start': 32174.013, 'weight': 3, 'content': [{'end': 32177.475, 'text': 'Let us deal with an example to understand MVC design pattern in a better way.', 'start': 32174.013, 'duration': 3.462}, {'end': 32183.137, 'text': 'We are going to use the MVC design pattern to set and print the data of the students of a particular school.', 'start': 32178.095, 'duration': 5.042}, {'end': 32186.799, 'text': 'So the UML diagram for this particular example is as follows.', 'start': 32183.778, 'duration': 3.021}, {'end': 32189.48, 'text': 'Let us try to execute this practically.', 'start': 32187.759, 'duration': 1.721}, {'end': 32197.104, 'text': 'As you can see this particular code segment is related to the student which has the role number and name of that particular student.', 'start': 32189.5, 'duration': 7.604}, {'end': 32206.255, 'text': 'Now, this particular code segment happens to be the view of the MVC design pattern and this particular code segment happens to be the controller part of the MVC design pattern.', 'start': 32198.032, 'duration': 8.223}], 'summary': 'Using mvc design pattern to set and print student data, demonstrated with a uml diagram and practical execution.', 'duration': 32.242, 'max_score': 32174.013, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz032174013.jpg'}, {'end': 32355.516, 'src': 'embed', 'start': 32325.005, 'weight': 0, 'content': [{'end': 32328.906, 'text': 'They furnish solutions that help to define system architecture with ease.', 'start': 32325.005, 'duration': 3.901}, {'end': 32333.568, 'text': 'Java design patterns are capable to capture the software engineering experiences.', 'start': 32329.606, 'duration': 3.962}, {'end': 32338.069, 'text': 'They provide transparency to the design of an application and, finally,', 'start': 32334.128, 'duration': 3.941}, {'end': 32343.691, 'text': 'Java design patterns provide clarity to the system architecture and provide the possibility of building a better system.', 'start': 32338.069, 'duration': 5.622}, {'end': 32355.516, 'text': 'we will be discussing three useful projects, which are based on core and advanced Java concepts.', 'start': 32349.554, 'duration': 5.962}], 'summary': 'Java design patterns provide clarity and transparency to system architecture, enabling better system building.', 'duration': 30.511, 'max_score': 32325.005, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz032325005.jpg'}], 'start': 31307.757, 'title': 'Design patterns in java', 'summary': 'Covers singleton design pattern, emphasizing single instance class, mysql database operations; structural design patterns including facade and adapter, with examples like franchise cost calculation and library card issuance; behavioral design patterns focusing on strategy, command, and observer, with a library card issuance example; jee design patterns like mvc and dao, with practical applications and advantages.', 'chapters': [{'end': 31512.219, 'start': 31307.757, 'title': 'Singleton design pattern example', 'summary': 'Discusses the singleton design pattern in java, emphasizing the principles of allowing only one instance of a class, saving memory, and reusing a single instance. an example of inserting, viewing, deleting, and updating data in a mysql database using singleton design pattern is demonstrated, with successful execution and display of the database operations.', 'duration': 204.462, 'highlights': ['The singleton design pattern allows only one instance of a class, saving memory and reusing a single instance for all other classes, providing a global point of access to it.', 'An example demonstrates inserting, viewing, deleting, and updating data in a MySQL database using singleton design pattern, with successful execution and display of the database operations.', 'The program successfully executes four different database operations: insertion, viewing, deletion, and updating, displaying the results for each operation.', 'The example includes starting MySQL and Apache, switching off VMware ports, and executing the program, resulting in successful insertion, viewing, deletion, and updating of data in the database.']}, {'end': 31752.073, 'start': 31513.02, 'title': 'Structural design patterns overview', 'summary': 'Introduces structural design patterns, such as facade and adapter design patterns, highlighting their advantages and providing practical examples, including a franchise cost calculation using the facade pattern and a library card issuance using the adapter pattern.', 'duration': 239.053, 'highlights': ['The chapter introduces structural design patterns, such as facade and adapter design patterns It provides an overview of the structural design patterns being discussed, setting the context for the subsequent detailed examples.', 'The major advantage of facade design pattern is it protects the end users from the complex subsystem components Highlights the key benefit of the facade design pattern, emphasizing its role in simplifying the usage of complex subsystems for end users.', 'The adapter pattern is also known as a wrapper Provides an alternative name for the adapter design pattern, adding to the understanding of its purpose.', 'The adapter design pattern provides an interface according to client requirement while using the services of a class with different interface Explains the objective of the adapter pattern, emphasizing its role in enabling interaction between previously incompatible objects.', 'The chapter includes practical examples, including a franchise cost calculation using the facade pattern and a library card issuance using the adapter pattern Summarizes the practical applications of the facade and adapter patterns, demonstrating their usage in real-world scenarios for franchise cost calculation and library card issuance.']}, {'end': 32081.897, 'start': 31756.252, 'title': 'Library card issuance and behavioral design patterns', 'summary': 'Discusses the issuance of a library card and introduces the behavioral design patterns, specifically focusing on strategy, command, and observer design patterns, including practical examples and uml diagrams.', 'duration': 325.645, 'highlights': ['The library card with account number 201907 has been successfully issued and authenticated for the MG library. Library card with account number 201907 issued and authenticated.', 'Introduces behavioral design patterns, specifically discussing strategy, command, and observer design patterns. Introduction to behavioral design patterns: strategy, command, and observer.', 'Detailed discussion and practical example of the strategy design pattern, including UML diagram and program execution with five different operations. Detailed discussion and practical example of the strategy design pattern, including UML diagram and program execution.', 'Explanation and example of the command design pattern, demonstrating the execution cycle with electronic devices and invoker object. Explanation and example of the command design pattern with electronic devices and invoker object.', 'Illustration and practical example of the observer design pattern to display current and average scores of a cricket match with UML diagram and program execution. Practical example of the observer design pattern to display cricket match scores with UML diagram and program execution.']}, {'end': 32343.691, 'start': 32082.077, 'title': 'Jee design patterns overview', 'summary': 'Discusses jee design patterns, including the mvc and dao patterns, and their practical applications, with a focus on java ee based software applications, providing a predictable score of 441 runs based on a run rate of 8.8, as well as practical examples and advantages of mvc and dao patterns.', 'duration': 261.614, 'highlights': ['The JEE design patterns are concerned with providing the solutions to the Java EE based software applications and frameworks, including MVC and DAO patterns. The chapter introduces JEE design patterns, specifically focusing on MVC and DAO patterns used in Java EE based software applications and frameworks.', 'The predictable score according to this run rate would be 441 runs. Based on the given run rate of 8.8, the predicted score for the game would be 441 runs.', 'The major advantage of MVC design pattern is it supports multiple views of a particular model. MVC design pattern is highlighted for its major advantage of supporting multiple views of a specific model, enhancing its flexibility and usability.', 'The major advantage of DAO design pattern is it uses common calls to retrieve the objects. The DAO design pattern is emphasized for its major advantage of employing common calls to retrieve objects, streamlining data retrieval and enhancing efficiency.', 'The Java design patterns are designed to be reusable in multiple projects, providing transparency to the design of an application and clarity to the system architecture. The chapter highlights the reusability of Java design patterns across multiple projects, emphasizing their role in providing transparency to application design and clarity to system architecture.']}], 'duration': 1035.934, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz031307757.jpg', 'highlights': ['The singleton design pattern allows only one instance of a class, saving memory and reusing a single instance for all other classes, providing a global point of access to it.', 'The major advantage of facade design pattern is it protects the end users from the complex subsystem components.', 'The adapter pattern is also known as a wrapper.', 'The library card with account number 201907 has been successfully issued and authenticated for the MG library.', 'Detailed discussion and practical example of the strategy design pattern, including UML diagram and program execution with five different operations.', 'The predictable score according to this run rate would be 441 runs.', 'The major advantage of MVC design pattern is it supports multiple views of a particular model.', 'The major advantage of DAO design pattern is it uses common calls to retrieve the objects.', 'The Java design patterns are designed to be reusable in multiple projects, providing transparency to the design of an application and clarity to the system architecture.']}, {'end': 34434.275, 'segs': [{'end': 33232.216, 'src': 'embed', 'start': 33208.917, 'weight': 0, 'content': [{'end': 33216.805, 'text': "and I'm adding the key listener for new adapter and then I'm using the focus listener to focus the event that was being captured.", 'start': 33208.917, 'duration': 7.888}, {'end': 33219.987, 'text': 'and similarly for text listener as well.', 'start': 33217.364, 'duration': 2.623}, {'end': 33223.53, 'text': 'if the value is changed, it has to say that the text is being changed.', 'start': 33219.987, 'duration': 3.543}, {'end': 33232.216, 'text': "and now you can see there's a text editor class which undoable text area has extended, and this I'm declaring few parameters, like frame file,", 'start': 33223.53, 'duration': 8.686}], 'summary': 'Adding key and focus listeners for new adapter, text listener for value change, and declaring parameters for text editor class.', 'duration': 23.299, 'max_score': 33208.917, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz033208917.jpg'}, {'end': 33925.576, 'src': 'embed', 'start': 33898.076, 'weight': 2, 'content': [{'end': 33904.24, 'text': 'The second stage requires you to complete an online or an offline course specializing in core and advanced Java.', 'start': 33898.076, 'duration': 6.164}, {'end': 33912.809, 'text': 'Trying out online examples is a good way to develop your specialization in Java and in the third stage, you need to get experienced.', 'start': 33904.904, 'duration': 7.905}, {'end': 33917.932, 'text': 'the third stage needs you to look for a placement or an internship program while studying.', 'start': 33912.809, 'duration': 5.123}, {'end': 33925.576, 'text': 'this will provide you with relevant experience, as well as guidance and mentorship from experienced software developers, and, finally,', 'start': 33917.932, 'duration': 7.644}], 'summary': 'Complete core and advanced java course. gain experience through placement or internship program.', 'duration': 27.5, 'max_score': 33898.076, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz033898076.jpg'}, {'end': 34050.907, 'src': 'embed', 'start': 34025.088, 'weight': 1, 'content': [{'end': 34030.51, 'text': 'The Java developers must be well-versed with DBMS, Hadoop, SQL and JDBC.', 'start': 34025.088, 'duration': 5.422}, {'end': 34033.311, 'text': 'next, we have Java EE components.', 'start': 34030.51, 'duration': 2.801}, {'end': 34041.734, 'text': 'the most important Java EE components are servlets, Java beans, Java server pages and finally the code version control, which is GitHub.', 'start': 34033.311, 'duration': 8.423}, {'end': 34042.981, 'text': "Don't worry.", 'start': 34042.461, 'duration': 0.52}, {'end': 34047.965, 'text': 'We shall discuss each and every one of them in detail for a better understanding in our next topic,', 'start': 34043.062, 'duration': 4.903}, {'end': 34050.907, 'text': 'which happens to be the skills required for a Java developer.', 'start': 34047.965, 'duration': 2.942}], 'summary': 'Java developers need dbms, hadoop, sql, jdbc, and java ee components like servlets, java beans, and java server pages. code version control is done through github.', 'duration': 25.819, 'max_score': 34025.088, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz034025088.jpg'}], 'start': 32349.554, 'title': 'Java projects and developer skills', 'summary': 'Covers the development of java projects including an atm machine, text editor, and signup form, along with insights on java developer skills, such as servlet classes, object-oriented programming, and essential technologies and soft skills.', 'chapters': [{'end': 32899.345, 'start': 32349.554, 'title': 'Java projects: atm, text editor, signup form', 'summary': 'Covers the development of three java projects: an atm machine using core java concepts, a text editor based on swings and applets, and a signup form utilizing servlets and jsp concepts, with a detailed demonstration of the atm project including account details, deposit, withdrawal, and balance operations, and the structure of the code with three java files: account, atm, and option menu.', 'duration': 549.791, 'highlights': ['Detailed demonstration of the ATM project including account details, deposit, withdrawal, and balance operations. The ATM project is based on core Java concepts and includes operations such as depositing and withdrawing funds, with a requirement for valid account numbers and passwords for access.', 'Structure of the code with three Java files: account, ATM, and option menu. The code for the ATM project is structured into three Java files: account, ATM, and option menu, each serving specific functions in the project.', 'Development of a text editor based on swings and applets, and a signup form utilizing servlets and JSP concepts. Alongside the ATM project, the chapter also covers the development of a text editor using swings and applets, and a signup form that makes use of servlets and JSP concepts.']}, {'end': 33366.506, 'start': 32900.405, 'title': 'Atm project and java swing text editor', 'summary': 'Covers the functionality of an atm project and a java swing text editor, which enables various operations such as editing, formatting, and saving with the use of java swings and applet and swing concepts.', 'duration': 466.101, 'highlights': ['The text editor allows various operations such as editing, formatting, and saving. The text editor provides operations like new, open, save, exit, cut, copy, paste, font formatting, background and foreground color setting, undo, and redo.', 'The Java Swing text editor supports different font types, sizes, and colors. The text editor supports font types including Roman, Helvetica, Arial, Courier, Century, etc., font sizes up to 28, and various colors for both background and foreground.', 'The implementation details of the undoable text area and the text editor are explained, including the usage of key listeners and action listeners. The implementation details include the usage of key listeners for capturing key events, focus listeners for focusing events, and text listeners for detecting changes. Additionally, the usage of action listeners for various operations such as new, open, save, exit, cut, copy, paste, and font formatting is explained.']}, {'end': 33674.558, 'start': 33367.559, 'title': 'Text editor and sign-up form development', 'summary': 'Covers the development process of a text editor and a sign-up form using html, css, servlets, java server pages, apache, tomcat server, and eclipse for enterprise edition, showcasing the implementation of a basic sign-up form and the backend code, with details of the created files and their functionalities.', 'duration': 306.999, 'highlights': ['The chapter covers the implementation of a basic sign-up form and the backend code The text explains the process of creating a basic sign-up form using servlets, Java server pages, Apache, Tomcat server, and Eclipse for Enterprise Edition, along with the detailed explanation of the backend code and the files created.', 'Details of the files created for the sign-up form The transcript details the creation of five files - HTML for the form, CSS for styling, servlet class files for request and post form, a Java class for data retrieval, and a JSP file, showcasing the comprehensive approach to building the sign-up form.', 'Explanation of the code and styling for the sign-up form The content includes a detailed explanation of the HTML and CSS used for the sign-up form, covering the form action, label tags for various fields, styling specifications, and the implementation of checkboxes and a submit button.']}, {'end': 34071.441, 'start': 33675.018, 'title': 'Java developer skills overview', 'summary': 'Covers the process of java servlet classes, including the declaration of parameters, creating an object of person, and using dispatcher to forward the response and request. additionally, it provides insights on becoming a java developer, which involves earning a college degree, getting certified with java, and gaining experience through a placement or internship program.', 'duration': 396.423, 'highlights': ['The chapter covers the process of Java servlet classes, including the declaration of parameters, creating an object of person, and using dispatcher to forward the response and request. It discusses extending a HTTP servlet class, using do post method, declaring parameters for request and response, and retrieving all the parameters such as username, email, password, age, biography, job, and user interest.', 'Insights on becoming a Java developer, which involves earning a college degree, getting certified with Java, and gaining experience through a placement or internship program. It outlines the three stages of becoming a Java developer: earning a college degree in computer science, getting certified with Java through a course, and gaining experience through a placement or internship program.', 'Java developer skills overview, which includes technical skills such as core Java, ORM, Java build tools, web technologies, Java web frameworks, application containers, Java testing tools, big data, Java EE components, and code version control. It categorizes the technical skills required for Java developers, such as core Java, ORM, Java build tools, web technologies, Java web frameworks, application containers, Java testing tools, big data, Java EE components, and code version control.']}, {'end': 34434.275, 'start': 34072.159, 'title': 'Java developer skills overview', 'summary': 'Covers the essential skills and technologies required for java developers, including object-oriented programming, design patterns, web technologies, java ee components, and soft skills such as communication, open learning, teamwork, work ethics, and interpersonal skills.', 'duration': 362.116, 'highlights': ['Object-oriented programming Introduces class and object style of coding, focusing on inheritance, encapsulation, abstraction, and polymorphism to improve code stability and safety.', 'Soft Skills Emphasizes the importance of soft skills such as communication, open learning, teamwork, work ethics, and interpersonal skills for successful Java developers.', 'Java EE components Enables developers to write server-side applications, including Java servlet and Java server pages APIs to handle web-based client requests.', 'Web Technologies Provides a simplified and faster way to create dynamic web content, involving HTML, jQuery, and CSS for establishing communication between multiple computer systems.', 'Design Patterns Offers standard solutions to solve routine problems in software designing life cycle, acting as a blueprint for customization during the development of software modules.']}], 'duration': 2084.721, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz032349554.jpg', 'highlights': ['Covers the development of java projects including an atm machine, text editor, and signup form, along with insights on java developer skills, such as servlet classes, object-oriented programming, and essential technologies and soft skills.', 'The chapter covers the process of Java servlet classes, including the declaration of parameters, creating an object of person, and using dispatcher to forward the response and request.', 'Insights on becoming a Java developer, which involves earning a college degree, getting certified with Java, and gaining experience through a placement or internship program.', 'Object-oriented programming Introduces class and object style of coding, focusing on inheritance, encapsulation, abstraction, and polymorphism to improve code stability and safety.', 'Soft Skills Emphasizes the importance of soft skills such as communication, open learning, teamwork, work ethics, and interpersonal skills for successful Java developers.']}, {'end': 37140.86, 'segs': [{'end': 34757.858, 'src': 'embed', 'start': 34710.606, 'weight': 3, 'content': [{'end': 34713.288, 'text': 'Okay, so let me brief you about this.', 'start': 34710.606, 'duration': 2.682}, {'end': 34721.053, 'text': "when you work with an object oriented language like Java, you'll encounter a problem called object relational impedance mismatch,", 'start': 34713.288, 'duration': 7.765}, {'end': 34723.375, 'text': 'which is also called paradigm mismatch.', 'start': 34721.053, 'duration': 2.322}, {'end': 34733.383, 'text': 'This is because the object-oriented languages and the RDBMS handle the data differently which can lead to severe mismatch problems.', 'start': 34723.959, 'duration': 9.424}, {'end': 34739.206, 'text': 'So this hibernate provides you with the same work that overcomes the mismatch problems in Java.', 'start': 34734.024, 'duration': 5.182}, {'end': 34742.287, 'text': "Okay Now, let's take a look at the users.", 'start': 34739.766, 'duration': 2.521}, {'end': 34747.73, 'text': 'It allows you to develop persistent classes following the object-oriented idiom.', 'start': 34742.968, 'duration': 4.762}, {'end': 34754.576, 'text': 'It also allows you to communicate with any database using very tiny alterations in the code,', 'start': 34748.411, 'duration': 6.165}, {'end': 34757.858, 'text': 'bridging the gap between the objects and the relational works.', 'start': 34754.576, 'duration': 3.282}], 'summary': 'Hibernate solves object relational mismatch in java, allowing communication with any database using minimal code changes.', 'duration': 47.252, 'max_score': 34710.606, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz034710606.jpg'}, {'end': 35324.221, 'src': 'embed', 'start': 35289.968, 'weight': 8, 'content': [{'end': 35296.67, 'text': 'It supports JVM languages like Kotlin and Scala and also has built-in spring support.', 'start': 35289.968, 'duration': 6.702}, {'end': 35300.531, 'text': 'Okay, so this is about the advantages of Waden.', 'start': 35297.39, 'duration': 3.141}, {'end': 35305.307, 'text': "Now let's move ahead to our next framework, that is, blade.", 'start': 35301.224, 'duration': 4.083}, {'end': 35313.193, 'text': 'blade is a simple, lightweight and high-performance Java framework used for providing a full stack web framework.', 'start': 35305.307, 'duration': 7.886}, {'end': 35324.221, 'text': 'It is a lightweight MVC framework that provides a restful routing interface, making the web API cleaner and much easier to understand,', 'start': 35313.893, 'duration': 10.328}], 'summary': 'Waden supports jvm languages and has built-in spring support. blade is a lightweight, high-performance java framework with restful routing interface.', 'duration': 34.253, 'max_score': 35289.968, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz035289968.jpg'}, {'end': 35765.132, 'src': 'embed', 'start': 35721.792, 'weight': 1, 'content': [{'end': 35728.476, 'text': 'The first section which covers the patterns, practices and principles which are the pillars for writing clean code.', 'start': 35721.792, 'duration': 6.684}, {'end': 35734.36, 'text': 'The next section covers a wide range of case studies in an ascending complexity order.', 'start': 35729.277, 'duration': 5.083}, {'end': 35738.632, 'text': 'Finally, the third section, which is just one chapter,', 'start': 35735.131, 'duration': 3.501}, {'end': 35744.835, 'text': 'focuses on a list of techniques gathered while curating the case studies in the previous section of this book.', 'start': 35738.632, 'duration': 6.203}, {'end': 35745.375, 'text': 'to conclude,', 'start': 35744.835, 'duration': 0.54}, {'end': 35756.84, 'text': 'I would say this book will give you a strong base for building knowledge on Java and teach you various programming techniques and practices that will eventually help you in day-to-day life as a programmer,', 'start': 35745.535, 'duration': 11.305}, {'end': 35758.5, 'text': 'now followed by the clean code.', 'start': 35756.84, 'duration': 1.66}, {'end': 35762.322, 'text': 'The third book in the list is Java the complete reference.', 'start': 35758.78, 'duration': 3.542}, {'end': 35765.132, 'text': 'This book was written by Herbert Schulte.', 'start': 35763.05, 'duration': 2.082}], 'summary': 'Book covers clean code principles, case studies, and java techniques, providing a strong base for programming.', 'duration': 43.34, 'max_score': 35721.792, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz035721792.jpg'}, {'end': 35906.539, 'src': 'embed', 'start': 35879.869, 'weight': 0, 'content': [{'end': 35887.474, 'text': 'There is no better book than Java concurrency for learning concurrency and multi-threading in Java, which is an integral part of this language.', 'start': 35879.869, 'duration': 7.605}, {'end': 35894.119, 'text': 'So the fifth book in the docket is effective Java and the author is Joshua block.', 'start': 35888.495, 'duration': 5.624}, {'end': 35898.702, 'text': 'latest edition of this particular book is the third edition published by Addison Weasley.', 'start': 35894.119, 'duration': 4.583}, {'end': 35906.539, 'text': 'The book Effective Java falls under the category of must-have book for every Java programmer as well as Java aspirant.', 'start': 35899.534, 'duration': 7.005}], 'summary': 'Java concurrency is the best book for learning multi-threading in java. effective java by joshua block is a must-have for every java programmer, with the latest edition being the third edition published by addison weasley.', 'duration': 26.67, 'max_score': 35879.869, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz035879869.jpg'}, {'end': 36066.063, 'src': 'embed', 'start': 36039.989, 'weight': 5, 'content': [{'end': 36045.272, 'text': "The author is Scott Oakes and the latest edition has been published by O'Reilly Media.", 'start': 36039.989, 'duration': 5.283}, {'end': 36052.476, 'text': 'Moving further into advanced Java programming, we come across the concepts such as garbage collection,', 'start': 36046.332, 'duration': 6.144}, {'end': 36056.018, 'text': 'Java virtual machine and performance tuning and many more.', 'start': 36052.476, 'duration': 3.542}, {'end': 36060.92, 'text': 'The only way of mastering these concepts is through the book Java Performance.', 'start': 36056.618, 'duration': 4.302}, {'end': 36066.063, 'text': 'This book covers all the above mentioned topics in a simplest yet effective manner.', 'start': 36061.821, 'duration': 4.242}], 'summary': "Scott oakes' java performance book covers advanced java programming concepts and is published by o'reilly media.", 'duration': 26.074, 'max_score': 36039.989, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz036039989.jpg'}], 'start': 34434.275, 'title': "Java developer's skills and frameworks", 'summary': 'Discusses the importance of interpersonal skills for java developers, with beginners earning 3-8 lakhs per annum, experienced candidates earning 8-13 lakhs per annum, and those with over 8 years of experience earning approximately 28 lakhs per annum. it also provides an overview of popular java frameworks including spring, hibernate, structs, google web toolkit (gwt), java server faces (jsf), and grails, and introduces the top 10 java frameworks emphasizing varden, blade, dropwizard, and play.', 'chapters': [{'end': 34476.947, 'start': 34434.275, 'title': 'Interpersonal skills and java developer salaries', 'summary': 'Discusses the importance of interpersonal skills for career growth and provides salary details for java developers, with beginners earning 3-8 lakhs per annum, experienced candidates earning 8-13 lakhs per annum, and those with over 8 years of experience earning approximately 28 lakhs per annum or more.', 'duration': 42.672, 'highlights': ['Java developer with over 8 years of experience can earn approximately 28 lakhs per annum or more', 'Experienced Java developers can earn 8 to 13 lakhs per annum', 'Beginner Java developers can earn 3 to 8 lakhs per annum', 'Interpersonal skills are crucial for career growth']}, {'end': 35173.486, 'start': 34483.035, 'title': 'Java frameworks overview', 'summary': 'Provides an overview of popular java frameworks including spring, hibernate, structs, google web toolkit (gwt), java server faces (jsf), and grails, detailing their uses, advantages, and notable users.', 'duration': 690.451, 'highlights': ['Spring framework is a powerful, lightweight application development framework used for Java Enterprise, with notable users like Netflix, Yatra, and Amazon. The Spring framework is used for web application development and provides a lightweight container, supports JDBC, and targets to make J2W development easier to use. Notable users include Netflix, Yatra, and Amazon.', 'Hibernate ORM is a stable object relational mapping framework for Java, utilized by major companies such as Oracle, IBM, Dell, and Accenture. Hibernate ORM allows communication between Java and RDBMS, offers portability, productivity, and maintainability, and is used by major companies such as Oracle, IBM, Dell, and Accenture.', 'Structs2 is an Enterprise level framework used for developing MVC based web applications, with notable users like Emphasis and Accenture. Structs2 framework is used for MVC based web applications, reduces development time, offers centralized configuration, and is utilized by companies like Emphasis and Accenture.', 'Google Web Toolkit (GWT) is a free open-source framework that helps developers write client-side Java code, utilized in Google products like Adsense, Google Wallet, and Blogger. GWT enables rapid development of complex browser applications, supports reusability, and is used in Google products like Adsense, Google Wallet, and Blogger.', 'Java Server Faces (JSF) is a stable framework for building user interfaces for Java based web applications, forming an integral part of Java Enterprise Edition. JSF offers component-based UI framework, provides excellent tools and rich libraries, and is an integral part of Java Enterprise Edition.', 'Grails is a dynamic framework coined by the groovy JVM programming language, known for its developer-friendly nature, detailed documentation, and support for e-commerce sites. Grails, developed using the groovy JVM programming language, provides detailed documentation, supports e-commerce sites, and promotes reusability of code between different applications.']}, {'end': 35587.163, 'start': 35174.006, 'title': 'Java web frameworks overview', 'summary': 'Introduces the top 10 java frameworks, emphasizing varden, blade, dropwizard, and play. varden 10 offers direct access to the document object model, while blade is a lightweight mvc framework with minimal code impression. dropwizard is a high-performance framework suitable for creating java microservices, and play is a reactive web and mobile framework for highly scalable java applications.', 'duration': 413.157, 'highlights': ['Varden 10 offers direct access to the document object model from the Java virtual machine, splitting the previously monolithic framework into two parts, and providing a lightweight Java framework called Vaadin flow for routing and server-client communication. Varden 10 provides direct access to the document object model, splitting the framework into two parts, and a lightweight Java framework called Vaadin flow for routing and server-client communication.', 'Blade is a lightweight MVC framework that provides a restful routing interface, based on Java 8 with a minimal code impression of less than 500 KB, and supports plug-in extensions and web jar resources. Blade is a lightweight MVC framework based on Java 8 with a minimal code impression, supporting plug-in extensions and web jar resources.', 'Dropwizard is a high-performance Java framework suitable for creating Java microservices, offering a rapid prototyping environment, high-performance restful web services, and support for many open source and independent libraries. Dropwizard is suitable for creating Java microservices, offering a rapid prototyping environment, high-performance restful web services, and support for open source and independent libraries.', 'Play is a reactive web and mobile framework for highly scalable Java applications, capable of developing lightweight and web-friendly Java and Scala applications, and providing features like hot code reloading, convention over configuration, and non-blocking IO crucial for high-performance applications. Play is a reactive web and mobile framework for highly scalable Java applications, capable of developing lightweight and web-friendly Java and Scala applications, and providing features like hot code reloading and non-blocking IO.']}, {'end': 36346.893, 'start': 35587.884, 'title': 'Top 10 java books', 'summary': 'Discusses the top 10 books for learning java, covering beginner and advanced levels, including key points and quantifiable data such as authors, latest editions, publishers, and notable topics covered in each book.', 'duration': 759.009, 'highlights': ['Java concurrency in practice is one of the best Java programming books for gaining a rich understanding of Java concepts such as concurrency and multi-threading. Java concurrency in practice book is essential for Java developers, providing a deep understanding of concurrency and multi-threading, integral parts of Java programming.', 'Effective Java is a must-have book for every Java programmer, covering 78 best practices categorized into 11 distinct sections and strongly built around Java versions 7, 8, and 9. Effective Java constitutes 78 best practices, categorized into 11 distinct sections, suitable for Java programmers of any skill level and built around Java versions 7, 8, and 9.', 'Mastering Java machine learning covers a wide range of topics used in the machine learning domain and includes 10 real-world case studies, making it suitable for those seeking to explore machine learning after mastering Java. Mastering Java machine learning offers comprehensive knowledge of linear algebra, probability, statistics, text mining, classification, clustering, big data, and machine learning through 10 real-world case studies.', 'Clean Code provides a strong base for building knowledge on Java, covering various programming techniques and practices, and is divided into three sections based on the level of complexity of the concepts. Clean Code offers a strong base for building knowledge on Java and is divided into three sections based on the complexity of the concepts, making it suitable for Java programmers looking to construct better code.', "Java, a beginner's guide, is comprehensive and complete, including extensive hands-on exercises and quiz sections, fully revised to include Java 11 SE, making it useful for seasoned Java programmers as well. Java, a beginner's guide, is comprehensive and complete, with extensive hands-on exercises, quiz sections, and fully revised to include Java 11 SE, suitable for seasoned Java programmers."]}, {'end': 37140.86, 'start': 36346.893, 'title': 'Java c, synchronization, processes, threads, wrapper class, keywords', 'summary': 'Discusses java c, synchronization, processes, threads, wrapper classes, and keywords final, finally, and finalize, covering concepts such as the purpose of synchronization, differences between processes and threads, wrapper class usage, and the meaning and usage of final, finally, and finalize keywords.', 'duration': 793.967, 'highlights': ["Synchronization Synchronization ensures concurrent threads accessing the same object are in a synchronous mode, preventing memory consistency errors and using the keyword 'synchronize' to acquire locks on objects.", 'Processes and Threads Processes are executing instances of a program on the operating system, while threads, like the main thread, run within processes. Processes are controlled by the OS, and threads are a subset of processes, allowing for inter-thread communication.', 'Wrapper Class Wrapper classes convert Java primitives into reference types, with each primitive type having a corresponding wrapper class in the java.lang package, enabling the conversion of primitives into objects through processes like boxing, unboxing, auto boxing, and auto unboxing.', "Final, Finally, and Finalize Keywords The 'final' keyword marks variables, classes, and methods as constant, non-inheritable, and non-overridable, while 'finally' is used in exception handling to ensure specific statements are executed regardless of whether an exception occurs."]}], 'duration': 2706.585, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz034434275.jpg', 'highlights': ['Java developers with over 8 years of experience can earn approximately 28 lakhs per annum or more', 'Experienced Java developers can earn 8 to 13 lakhs per annum', 'Beginner Java developers can earn 3 to 8 lakhs per annum', 'Interpersonal skills are crucial for career growth', 'Spring framework is a powerful, lightweight application development framework used for Java Enterprise, with notable users like Netflix, Yatra, and Amazon', 'Hibernate ORM is a stable object relational mapping framework for Java, utilized by major companies such as Oracle, IBM, Dell, and Accenture', 'Structs2 is an Enterprise level framework used for developing MVC based web applications, with notable users like Emphasis and Accenture', 'Google Web Toolkit (GWT) is a free open-source framework that helps developers write client-side Java code, utilized in Google products like Adsense, Google Wallet, and Blogger', 'Java Server Faces (JSF) is a stable framework for building user interfaces for Java based web applications, forming an integral part of Java Enterprise Edition', 'Grails is a dynamic framework coined by the groovy JVM programming language, known for its developer-friendly nature, detailed documentation, and support for e-commerce sites', 'Varden 10 offers direct access to the document object model from the Java virtual machine, splitting the previously monolithic framework into two parts, and providing a lightweight Java framework called Vaadin flow for routing and server-client communication', 'Blade is a lightweight MVC framework that provides a restful routing interface, based on Java 8 with a minimal code impression of less than 500 KB, and supports plug-in extensions and web jar resources', 'Dropwizard is a high-performance Java framework suitable for creating Java microservices, offering a rapid prototyping environment, high-performance restful web services, and support for many open source and independent libraries', 'Play is a reactive web and mobile framework for highly scalable Java applications, capable of developing lightweight and web-friendly Java and Scala applications, and providing features like hot code reloading and non-blocking IO', 'Java concurrency in practice is one of the best Java programming books for gaining a rich understanding of Java concepts such as concurrency and multi-threading', 'Effective Java is a must-have book for every Java programmer, covering 78 best practices categorized into 11 distinct sections and strongly built around Java versions 7, 8, and 9', 'Mastering Java machine learning covers a wide range of topics used in the machine learning domain and includes 10 real-world case studies, making it suitable for those seeking to explore machine learning after mastering Java', 'Clean Code provides a strong base for building knowledge on Java, covering various programming techniques and practices, and is divided into three sections based on the level of complexity of the concepts', "Java, a beginner's guide, is comprehensive and complete, including extensive hands-on exercises, quiz sections, and fully revised to include Java 11 SE, suitable for seasoned Java programmers"]}, {'end': 38843.778, 'segs': [{'end': 37488.254, 'src': 'embed', 'start': 37460.943, 'weight': 2, 'content': [{'end': 37468.106, 'text': "you need not to worry on top of multiple or concurrent threading now, whereas builder it's not thread safe.", 'start': 37460.943, 'duration': 7.163}, {'end': 37471.367, 'text': 'string buffer is to be used when multiple threads.', 'start': 37468.106, 'duration': 3.261}, {'end': 37477.709, 'text': 'they are going to work on the same string, whereas builder is supposed to be in a single threaded environment.', 'start': 37471.367, 'duration': 6.342}, {'end': 37488.254, 'text': 'other than that, builder is quite better as compared to buffer over the performance part, because there is no synchronization overhead.', 'start': 37477.709, 'duration': 10.545}], 'summary': 'Stringbuffer for multiple threads, stringbuilder for single thread, stringbuilder is better for performance', 'duration': 27.311, 'max_score': 37460.943, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz037460943.jpg'}, {'end': 38068.298, 'src': 'embed', 'start': 38037.409, 'weight': 6, 'content': [{'end': 38042.875, 'text': 'And your hash tables they are synchronized, whereas hash maps they are not synchronized.', 'start': 38037.409, 'duration': 5.466}, {'end': 38053.026, 'text': 'hash map allows a null key and a null value, whereas hash table will throw a null pointer exception if you will try to add a null key or a null value.', 'start': 38043.656, 'duration': 9.37}, {'end': 38057.531, 'text': 'other than that, since a hash map is not synchronized,', 'start': 38053.026, 'duration': 4.505}, {'end': 38068.298, 'text': "it's gonna behave faster as compared to the table and we can make the hash map as synchronized by calling the collection synchronized map API.", 'start': 38057.531, 'duration': 10.767}], 'summary': 'Hash tables are synchronized, while hash maps are not. hash map allows null key and value. hash map behaves faster and can be synchronized using collection synchronized map api.', 'duration': 30.889, 'max_score': 38037.409, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz038037409.jpg'}, {'end': 38618.354, 'src': 'embed', 'start': 38586.363, 'weight': 0, 'content': [{'end': 38594.849, 'text': 'right, you say s.draw and then you say s is new of polygon and then you say s.draw.', 'start': 38586.363, 'duration': 8.486}, {'end': 38603.715, 'text': 'so every time you are able to achieve s.draw, drawing the different shapes right.', 'start': 38594.849, 'duration': 8.866}, {'end': 38607.558, 'text': 'so this is what we call, as in runtime, polymorphism.', 'start': 38603.715, 'duration': 3.843}, {'end': 38618.354, 'text': 'The same method draw over the same reference variable S we are able to draw different different shapes dynamically at runtime.', 'start': 38608.058, 'duration': 10.296}], 'summary': 'Using polymorphism, the method draw is able to dynamically draw different shapes at runtime.', 'duration': 31.991, 'max_score': 38586.363, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz038586363.jpg'}, {'end': 38708.373, 'src': 'embed', 'start': 38646.352, 'weight': 3, 'content': [{'end': 38649.194, 'text': 'shape has to be circle, rectangle or the polygon.', 'start': 38646.352, 'duration': 2.842}, {'end': 38659.942, 'text': 'so what we need to understand from here is we need not to have the object for this class and we need not to have the definition for this guy draw.', 'start': 38649.194, 'duration': 10.748}, {'end': 38668.186, 'text': 'so you can change the architecture of your program and you can bring down one more class shape.', 'start': 38659.942, 'duration': 8.244}, {'end': 38676.81, 'text': 'mark this guy as abstract and mark the method within your class also as abstract.', 'start': 38668.186, 'duration': 8.624}, {'end': 38683.073, 'text': 'so an abstract class is a class for which you cannot have objects.', 'start': 38676.81, 'duration': 6.263}, {'end': 38686.575, 'text': "now you can't create the objects right.", 'start': 38683.073, 'duration': 3.502}, {'end': 38689.117, 'text': "so here you can see it's an error.", 'start': 38686.575, 'duration': 2.542}, {'end': 38697.396, 'text': 'other than that, the method can also be marked as abstract, which means you need not to have definition.', 'start': 38689.117, 'duration': 8.279}, {'end': 38708.373, 'text': 'so, guys, when a class is marked as abstract, you cannot create the objects, but runtime environment will create the object right.', 'start': 38697.396, 'duration': 10.977}], 'summary': "Introduce abstract class 'shape' and method, preventing object creation", 'duration': 62.021, 'max_score': 38646.352, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz038646352.jpg'}], 'start': 37140.86, 'title': 'Java programming concepts', 'summary': 'Covers java programming concepts including finally block, finalize method, string buffer, string builder, heap and stack memory, java collections, string comparison, and object-oriented programming. it provides insights through examples and emphasizes the importance of these concepts in java development.', 'chapters': [{'end': 37276.179, 'start': 37140.86, 'title': 'Java finally and finalize', 'summary': 'Discusses the importance of using finally block in java to execute certain instructions regardless of the presence of an exception, and explains the finalize method as a destructor that is executed when an object is removed from memory, demonstrated with an example of closing database connections and explicitly calling the garbage collector.', 'duration': 135.319, 'highlights': ['The finally block in Java ensures that certain instructions are executed whether an exception occurs or not, such as closing database connections, providing a robust error handling mechanism.', 'The finalize method serves as a destructor in Java, getting executed when an object is removed from memory by the garbage collector, allowing for pre-removal actions to be defined within it.', 'Demonstrating the explicit invocation of the garbage collector and setting object references to null to trigger the execution of the finalize method, showcasing the practical usage of finalization in Java.', 'The example of using a finally block to close database connections and the demonstration of invoking the garbage collector to execute the finalize method provide practical insights into resource management and memory cleanup in Java.']}, {'end': 37988.98, 'start': 37277.276, 'title': 'String buffer and string builder', 'summary': 'Discusses the difference between string buffer and string builder, highlighting their mutability, thread safety, and performance comparison, and also delves into the distinction between the heap and stack memory in java.', 'duration': 711.704, 'highlights': ['The major difference between String, String Buffer, and String Builder is their mutability, where String is immutable and String Buffer/Builder are mutable, enabling them to concatenate data directly, which results in a new string in the case of String, while the original string is altered in the case of String Buffer/Builder.', 'The thread safety aspect is emphasized, with String Buffer being thread-safe, making it suitable for multiple threads working on the same string, while String Builder is not thread-safe and is more suitable for single-threaded environments.', 'The performance comparison between String Buffer and String Builder is discussed, revealing that String Builder outperforms String Buffer due to the absence of synchronization overhead, demonstrated through a provided code snippet.', 'The distinction between heap and stack memory in Java is explained, detailing the allocation of stack and heap memory, the representation of objects in memory, and the differences in memory usage and accessibility between stack and heap.']}, {'end': 38327.533, 'start': 37988.98, 'title': 'Java collection differences and string comparison', 'summary': 'Discusses the differences between arraylist and vector, hashmap and hashtable, as well as the importance of using the equals method for string comparison instead of the equal to operator. it also provides an illustrative example to demonstrate the usage of the equals method and explains its significance in avoiding the comparison of references.', 'duration': 338.553, 'highlights': ['The differences between ArrayList and Vector are highlighted, including the ability of Vector to use enumerations for traversing. Vector has the capability to use enumerations for traversing, providing an advantage over ArrayList in terms of traversing functionality.', 'The distinctions between HashMap and HashTable are outlined, emphasizing synchronization, handling of null values, and inheritance of classes. HashTable is synchronized, while HashMap is not. Additionally, HashMap allows null keys and null values, whereas HashTable throws a null pointer exception when attempting to add null key or value. Furthermore, HashMap inherits the abstract map class, while HashTable is based on the dictionary class.', 'The significance of using the equals method for string comparison is explained, emphasizing the difference between comparing references and comparing values within objects. The importance of using the equals method for comparing strings is highlighted, as it compares the values within the objects rather than the references, therefore avoiding the risky comparison of references.']}, {'end': 38843.778, 'start': 38328.073, 'title': 'Object-oriented programming overview', 'summary': 'Covers the importance of object-oriented programming in interviews, discussing the difference between abstract classes and interfaces, and explaining the concept of runtime polymorphism through practical examples, highlighting the benefits and use cases of abstract classes. it also emphasizes the importance of parent-child relationships in object-oriented programming.', 'duration': 515.705, 'highlights': ['The chapter discusses the difference between abstract classes and interfaces, emphasizing the importance of understanding these concepts for interviews and application development.', 'A practical demonstration illustrates the concept of runtime polymorphism, showing how a reference variable belonging to a parent can behave as a child, dynamically drawing different shapes at runtime.', 'The concept of abstract classes is explained, highlighting that they cannot have objects and can contain abstract methods without definitions, allowing the runtime environment to create objects and enforce child classes to define the abstract methods.', 'The importance of parent-child relationships in object-oriented programming is emphasized, with the abstract class serving as a parent that defines rules to be implemented by its child classes.']}], 'duration': 1702.918, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz037140860.jpg', 'highlights': ['The distinction between heap and stack memory in Java is explained, detailing the allocation of stack and heap memory, the representation of objects in memory, and the differences in memory usage and accessibility between stack and heap.', 'The performance comparison between String Buffer and String Builder is discussed, revealing that String Builder outperforms String Buffer due to the absence of synchronization overhead, demonstrated through a provided code snippet.', 'The finally block in Java ensures that certain instructions are executed whether an exception occurs or not, such as closing database connections, providing a robust error handling mechanism.', 'The differences between ArrayList and Vector are highlighted, including the ability of Vector to use enumerations for traversing. Vector has the capability to use enumerations for traversing, providing an advantage over ArrayList in terms of traversing functionality.', 'The finalize method serves as a destructor in Java, getting executed when an object is removed from memory by the garbage collector, allowing for pre-removal actions to be defined within it.', 'The distinctions between HashMap and HashTable are outlined, emphasizing synchronization, handling of null values, and inheritance of classes. HashTable is synchronized, while HashMap is not. Additionally, HashMap allows null keys and null values, whereas HashTable throws a null pointer exception when attempting to add null key or value. Furthermore, HashMap inherits the abstract map class, while HashTable is based on the dictionary class.', 'The concept of abstract classes is explained, highlighting that they cannot have objects and can contain abstract methods without definitions, allowing the runtime environment to create objects and enforce child classes to define the abstract methods.', 'The significance of using the equals method for string comparison is explained, emphasizing the difference between comparing references and comparing values within objects. The importance of using the equals method for comparing strings is highlighted, as it compares the values within the objects rather than the references, therefore avoiding the risky comparison of references.']}, {'end': 39937.739, 'segs': [{'end': 39346.041, 'src': 'embed', 'start': 39318.428, 'weight': 11, 'content': [{'end': 39321.45, 'text': 'whereas static method, it belongs to the class.', 'start': 39318.428, 'duration': 3.022}, {'end': 39325.231, 'text': 'so you cannot override a static method right.', 'start': 39321.45, 'duration': 3.781}, {'end': 39332.334, 'text': "so it's basically what we call it, as in a class to class overriding, which is known as hiding right.", 'start': 39325.231, 'duration': 7.103}, {'end': 39334.976, 'text': 'so here the concept is known as hiding.', 'start': 39332.334, 'duration': 2.642}, {'end': 39342.259, 'text': 'so if there is a static method in the parent class and if you want to create a method in the child class to override the static method,', 'start': 39334.976, 'duration': 7.283}, {'end': 39346.041, 'text': 'it should also be static, and that concept will be referred to as hiding.', 'start': 39342.259, 'duration': 3.782}], 'summary': "Static methods can't be overridden, only hidden in class-to-class overriding.", 'duration': 27.613, 'max_score': 39318.428, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz039318428.jpg'}, {'end': 39421.54, 'src': 'embed', 'start': 39393.311, 'weight': 4, 'content': [{'end': 39398.793, 'text': 'so we cannot solve this problem now, right so Java multiple inheritance is not supported.', 'start': 39393.311, 'duration': 5.482}, {'end': 39402.391, 'text': 'so one more query now over here.', 'start': 39399.85, 'duration': 2.541}, {'end': 39404.332, 'text': 'right, what will be the output of this program?', 'start': 39402.391, 'duration': 1.941}, {'end': 39412.216, 'text': 'so if the parent is having this method, foo, which is marked as static, and one method, bar, which is a non-static method,', 'start': 39404.332, 'duration': 7.884}, {'end': 39421.54, 'text': 'and there is a parent child relationship where we are hiding a method versus overriding a method, and you are executing these method calls, right.', 'start': 39412.216, 'duration': 9.324}], 'summary': 'Java does not support multiple inheritance. the program involves method hiding and method overriding.', 'duration': 28.229, 'max_score': 39393.311, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz039393311.jpg'}, {'end': 39645.889, 'src': 'embed', 'start': 39490.76, 'weight': 0, 'content': [{'end': 39501.365, 'text': 'so, guys, a block is executed when you create the object of a class, whereas static block is executed when the class is loaded into the memory.', 'start': 39490.76, 'duration': 10.605}, {'end': 39506.347, 'text': 'so the idea is to define, you guys, the role for the static block and a normal block.', 'start': 39501.365, 'duration': 4.982}, {'end': 39509.548, 'text': 'so a block over here, if you can see,', 'start': 39506.347, 'duration': 3.201}, {'end': 39517.951, 'text': 'is executed when the object is constructed and static block is executed when the class is loaded into the memory.', 'start': 39509.548, 'duration': 8.403}, {'end': 39521.452, 'text': 'so just try to run this program and come up with this output, guys.', 'start': 39517.951, 'duration': 3.501}, {'end': 39523.379, 'text': 'Alright, guys.', 'start': 39522.839, 'duration': 0.54}, {'end': 39532.345, 'text': "so now let's understand servlex, right, so this is where we gonna pursue with the enterprise edition concepts of java.", 'start': 39523.379, 'duration': 8.966}, {'end': 39537.868, 'text': 'so we have left out the core part of java and now we are moving into the advanced part of java.', 'start': 39532.345, 'duration': 5.523}, {'end': 39543.872, 'text': 'so servlex is also one of the core concepts when we talk of the enterprise edition of java.', 'start': 39537.868, 'duration': 6.004}, {'end': 39547.59, 'text': 'so let us understand what exactly is a servlet?', 'start': 39543.872, 'duration': 3.718}, {'end': 39549.971, 'text': "right, so that's like what is a servlet?", 'start': 39547.59, 'duration': 2.381}, {'end': 39556.434, 'text': 'so servlet is one java program which is executed over the server.', 'start': 39549.971, 'duration': 6.463}, {'end': 39560.596, 'text': "now that's like one very basic definition to what exactly is a servlet.", 'start': 39556.434, 'duration': 4.162}, {'end': 39561.577, 'text': 'so what happens now?', 'start': 39560.596, 'duration': 0.981}, {'end': 39569.845, 'text': 'whenever you are writing an enterprise application, you need to have some code which is executed by the server.', 'start': 39562.037, 'duration': 7.808}, {'end': 39575.69, 'text': 'so if the client is sending a request via HTTP or the HTTPS,', 'start': 39569.845, 'duration': 5.845}, {'end': 39583.955, 'text': "request will come to a server and the server will execute your Java program and it's gonna send back the response to the client.", 'start': 39575.69, 'duration': 8.265}, {'end': 39591.58, 'text': 'Now the client can specifically be browser or it can be a mobile application or any other kind of a client device.', 'start': 39584.015, 'duration': 7.565}, {'end': 39604.79, 'text': 'So Java servlet is a server-side technology which will extend the capability of web servers by providing support for dynamic response and data persistent.', 'start': 39591.94, 'duration': 12.85}, {'end': 39615.183, 'text': 'We got javax.servlet and javax.servlet.http package which provides the various APIs for writing the servlet program.', 'start': 39605.071, 'duration': 10.112}, {'end': 39627.046, 'text': 'Now any servlet program should implement the servlet interface along with the lifecycle methods where you can manage your code snippets.', 'start': 39615.544, 'duration': 11.502}, {'end': 39632.009, 'text': 'As most web applications, they are accessed using the HTTP protocol.', 'start': 39627.646, 'duration': 4.363}, {'end': 39639.394, 'text': 'So we got a class known as HTTP servlet and we got a corresponding hierarchy for the same.', 'start': 39632.349, 'duration': 7.045}, {'end': 39644.127, 'text': 'so over the web, we use two of the major methods.', 'start': 39640.265, 'duration': 3.862}, {'end': 39645.889, 'text': 'one is the get, one is the post.', 'start': 39644.127, 'duration': 1.762}], 'summary': 'Understanding the difference between block and static block in java, and the basics of servlets in java ee.', 'duration': 155.129, 'max_score': 39490.76, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz039490760.jpg'}, {'end': 39918.2, 'src': 'embed', 'start': 39886.418, 'weight': 6, 'content': [{'end': 39891.943, 'text': 'Now, what is a possible life cycle of a servlet? Now, this is really important when you talk of servlets, guys.', 'start': 39886.418, 'duration': 5.525}, {'end': 39894.265, 'text': 'So servlets.', 'start': 39893.084, 'duration': 1.181}, {'end': 39896.586, 'text': 'they got five stages.', 'start': 39894.265, 'duration': 2.321}, {'end': 39898.608, 'text': 'when you talk of the life cycle right?', 'start': 39896.586, 'duration': 2.022}, {'end': 39907.814, 'text': "The first of all, the server will be loaded, then it's gonna be instantiated initialized, then a request will be sent to a servlet and then finally,", 'start': 39898.888, 'duration': 8.926}, {'end': 39909.415, 'text': 'the servlet will be destroyed.', 'start': 39907.814, 'duration': 1.601}, {'end': 39918.2, 'text': 'So we got init, service and destroy as the three life cycle callbacks involved when you write the servlet program.', 'start': 39909.915, 'duration': 8.285}], 'summary': 'Servlet life cycle has 5 stages: loading, instantiation, initialization, request handling, and destruction, with 3 involved callbacks: init, service, and destroy.', 'duration': 31.782, 'max_score': 39886.418, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz039886418.jpg'}], 'start': 38843.778, 'title': 'Java polymorphism, inheritance, and servlets', 'summary': 'Discusses parent-child relationship, abstract classes, runtime polymorphism, abstract classes vs interfaces, java method overriding, overloading, and servlets, covering features, methods, inheritance, variables, visibility, constructors, speed, and polymorphism types, as well as servlet concepts such as servlet interface, http servlet, session management, servlet context, servlet config, servlet life cycle, and request dispatchers.', 'chapters': [{'end': 38894.474, 'start': 38843.778, 'title': 'Parent-child relationship and abstract classes', 'summary': 'Discusses the dynamic of a parent-child relationship in setting rules and the progression from basic shape class to abstract classes in achieving runtime polymorphism.', 'duration': 50.696, 'highlights': ['The importance of parent-child relationship in setting rules is illustrated through the example of defining breakfast time, allowing children to come up with their own variations, showcasing the dynamics and flexibility of the relationship. Importance of flexibility in a parent-child relationship, illustrated example of defining breakfast time, showcasing the dynamics and flexibility of the relationship.', 'The evolution from basic shape class to abstract classes is explained, highlighting the need to prevent objects from being created and the draw method from taking place, leading to the achievement of runtime polymorphism through abstract classes. Evolution from basic shape class to abstract classes, need to prevent object creation and draw method, achievement of runtime polymorphism through abstract classes.']}, {'end': 39269.967, 'start': 38894.474, 'title': 'Runtime polymorphism: abstract classes vs interfaces', 'summary': 'Discusses the differences between abstract classes and interfaces in achieving runtime polymorphism, comparing their features such as methods, inheritance, variables, visibility, constructors, speed, and polymorphism types.', 'duration': 375.493, 'highlights': ['Abstract classes can provide complete default code or just the details that have to be overridden, whereas interface it will not provide any code. Abstract classes can provide default code or details to be overridden, while interfaces do not provide any code.', 'Abstract classes can have even regular methods, whereas interfaces cannot have. Abstract classes can have regular methods, but interfaces cannot have any.', 'Abstract classes are faster as compared to the interfaces. Abstract classes are faster than interfaces due to less indirection to find corresponding methods.', 'Runtime polymorphism is where you create a parent class and then a child class, and the child class must override the method of the parent class. Runtime polymorphism involves creating a parent and a child class, where the child class must override the method of the parent class.', 'Method overloading is linked with the compile time polymorphism, whereas overriding is linked with the runtime. Method overloading is associated with compile time polymorphism, while overriding is linked with runtime polymorphism.']}, {'end': 39937.739, 'start': 39270.919, 'title': 'Java overriding, overloading, and servlets', 'summary': 'Covers the concepts of java method overriding, overloading, and the basics of servlets, including the servlet interface, http servlet, get and post methods, session management techniques, servlet context versus servlet config, servlet life cycle, and request dispatchers.', 'duration': 666.82, 'highlights': ['Java method overriding and overloading The chapter explains the differences between method overriding and overloading, highlighting that private and static methods cannot be overridden, and Java does not support multiple inheritance.', 'Servlet basics and the servlet interface The chapter introduces servlets as Java programs executed on the server, explaining their role in handling client requests and providing dynamic responses, along with the necessary javax.servlet and javax.servlet.http packages.', 'Get and post methods in servlets The chapter compares the get and post methods, emphasizing that get is suitable for limited data sent as part of the URL, while post is preferred for large and secure data sent through the request body.', 'Session management techniques The chapter explains session management methods such as user authentication, hidden form fields, cookies, URL rewriting, and the HTTP session API, addressing the need to manage conversational state between client and server in the stateless HTTP protocol.', 'Servlet context versus servlet config The chapter distinguishes servlet context and config, highlighting their roles in extracting data stored in the web.xml deployment descriptor and their differences in scope and usage.', 'Servlet life cycle and request dispatchers The chapter details the five stages of servlet life cycle and the use of request dispatchers for forwarding requests to other resources, providing a comprehensive understanding of servlet programming.']}], 'duration': 1093.961, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz038843778.jpg', 'highlights': ['The chapter details the five stages of servlet life cycle and the use of request dispatchers for forwarding requests to other resources, providing a comprehensive understanding of servlet programming.', 'The chapter explains session management methods such as user authentication, hidden form fields, cookies, URL rewriting, and the HTTP session API, addressing the need to manage conversational state between client and server in the stateless HTTP protocol.', 'The chapter distinguishes servlet context and config, highlighting their roles in extracting data stored in the web.xml deployment descriptor and their differences in scope and usage.', 'The chapter compares the get and post methods, emphasizing that get is suitable for limited data sent as part of the URL, while post is preferred for large and secure data sent through the request body.', 'The chapter introduces servlets as Java programs executed on the server, explaining their role in handling client requests and providing dynamic responses, along with the necessary javax.servlet and javax.servlet.http packages.', 'The chapter explains the differences between method overriding and overloading, highlighting that private and static methods cannot be overridden, and Java does not support multiple inheritance.', 'Runtime polymorphism involves creating a parent and a child class, where the child class must override the method of the parent class.', 'Abstract classes are faster than interfaces due to less indirection to find corresponding methods.', 'Abstract classes can have regular methods, but interfaces cannot have any.', 'Abstract classes can provide default code or details to be overridden, while interfaces do not provide any code.', 'Evolution from basic shape class to abstract classes, need to prevent object creation and draw method, achievement of runtime polymorphism through abstract classes.', 'The importance of flexibility in a parent-child relationship, illustrated example of defining breakfast time, showcasing the dynamics and flexibility of the relationship.']}, {'end': 42057.281, 'segs': [{'end': 40131.321, 'src': 'embed', 'start': 40098.961, 'weight': 1, 'content': [{'end': 40104.885, 'text': 'It goes like JDBC, ODBC, bridge driver, native API driver which is a partial Java driver.', 'start': 40098.961, 'duration': 5.924}, {'end': 40114.41, 'text': 'Then, if you want to come up with a client server model, you got network protocol driver and lastly, you got the pure kind of a driver thin driver,', 'start': 40105.725, 'duration': 8.685}, {'end': 40118.372, 'text': 'the fully Java driver, which will be using to interact directly with the data.', 'start': 40114.41, 'duration': 3.962}, {'end': 40120.757, 'text': 'So Java app.', 'start': 40119.437, 'duration': 1.32}, {'end': 40131.321, 'text': "it's gonna use the JDBC API and the JDBC driver manager will interact with the driver and drivers will further interact with the drivers for the databases,", 'start': 40120.757, 'duration': 10.564}], 'summary': 'Jdbc architecture includes different types of drivers like bridge, network protocol, and thin drivers for database interaction in java.', 'duration': 32.36, 'max_score': 40098.961, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz040098961.jpg'}, {'end': 41048.483, 'src': 'embed', 'start': 41014.922, 'weight': 0, 'content': [{'end': 41019.265, 'text': 'you mention the ID and then you can have the properties as in key value pair.', 'start': 41014.922, 'duration': 4.343}, {'end': 41026.649, 'text': 'right. so what is the role of dispatcher servlet and context loader listener?', 'start': 41019.904, 'duration': 6.745}, {'end': 41032.414, 'text': 'so, guys, dispatcher servlet is acting as a front controller in the spring MVC.', 'start': 41026.649, 'duration': 5.765}, {'end': 41035.276, 'text': 'so many times I will call it as a receptionist now.', 'start': 41032.414, 'duration': 2.862}, {'end': 41035.997, 'text': 'so what happens?', 'start': 41035.276, 'duration': 0.721}, {'end': 41040.119, 'text': "any request when it's gonna land up to your web application.", 'start': 41036.537, 'duration': 3.582}, {'end': 41048.483, 'text': 'so this guy, dispatcher servlet, will dispatch the request to the corresponding resource available on your web application.', 'start': 41040.119, 'duration': 8.364}], 'summary': 'Dispatcher servlet acts as front controller in spring mvc, dispatching requests to corresponding resources.', 'duration': 33.561, 'max_score': 41014.922, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz041014922.jpg'}, {'end': 41159.118, 'src': 'embed', 'start': 41124.756, 'weight': 2, 'content': [{'end': 41132.221, 'text': 'salary goes like 30,000 and address goes like some new address.', 'start': 41124.756, 'duration': 7.465}, {'end': 41143.349, 'text': 'right where address can have some address line, then you can have some city, you can have a state and lastly,', 'start': 41132.221, 'duration': 11.128}, {'end': 41148.453, 'text': 'we can also have some kind of a zip code, just mentioning some parameters over here.', 'start': 41143.349, 'duration': 5.104}, {'end': 41152.676, 'text': 'now what will happen over the client part?', 'start': 41148.453, 'duration': 4.223}, {'end': 41159.118, 'text': 'you will be writing employee e, assign new employee.', 'start': 41152.676, 'duration': 6.442}], 'summary': 'Salary is $30,000, new address format is discussed for employee data entry.', 'duration': 34.362, 'max_score': 41124.756, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz041124756.jpg'}, {'end': 41276.22, 'src': 'embed', 'start': 41247.466, 'weight': 4, 'content': [{'end': 41256.19, 'text': 'or you can say employee, e assign new employee and e dot set the address and you can pass this guy a.', 'start': 41247.466, 'duration': 8.724}, {'end': 41264.094, 'text': 'so we want to reduce the dependency or we want to come down with the coupling parameter.', 'start': 41256.19, 'duration': 7.904}, {'end': 41268.256, 'text': 'we created this logic out here.', 'start': 41264.814, 'duration': 3.442}, {'end': 41276.22, 'text': 'so setter injection and constructor injection are the two terminologies linked up in order to justify these two terms.', 'start': 41268.256, 'duration': 7.964}], 'summary': 'Reducing dependency and coupling through setter and constructor injection in employee assignment.', 'duration': 28.754, 'max_score': 41247.466, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz041247466.jpg'}, {'end': 41939.146, 'src': 'embed', 'start': 41888.915, 'weight': 3, 'content': [{'end': 41891.856, 'text': 'What are the advantages that you should be opting for Hibernate?', 'start': 41888.915, 'duration': 2.941}, {'end': 41896.633, 'text': "Now, if you're writing a very small app, you need not to go on the Hibernate level.", 'start': 41892.651, 'duration': 3.982}, {'end': 41900.075, 'text': "Hibernate level is required when you're writing an enterprise app.", 'start': 41896.753, 'duration': 3.322}, {'end': 41906.879, 'text': "Where you need to save the time and you don't want to do a rework and there are various other differences.", 'start': 41900.296, 'duration': 6.583}, {'end': 41909.161, 'text': "So let's have a look on to that now.", 'start': 41907.32, 'duration': 1.841}, {'end': 41918.242, 'text': 'So guys, first of all, you need to write a lot of code when it comes to JDBC, whereas Hibernate, you have very limited instructions to mention.', 'start': 41909.861, 'duration': 8.381}, {'end': 41930.665, 'text': 'Hibernate supports all the association, inheritance, collection, mappings, where in case of JDBC API, you need to write all those logics.', 'start': 41919.543, 'duration': 11.122}, {'end': 41939.146, 'text': 'So one-to-one, one-to-many, many-to-many, all these mappings, they are available as a support in the Hibernate.', 'start': 41931.145, 'duration': 8.001}], 'summary': 'Hibernate is advantageous for enterprise apps, reducing code and supporting various mappings.', 'duration': 50.231, 'max_score': 41888.915, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz041888915.jpg'}], 'start': 39937.779, 'title': 'Java web development and database integration', 'summary': 'Covers servlet usage, jdbc connections, spring framework features, dispatcher servlet, and injection in spring. it also provides an overview of spring-hibernate integration and discusses hibernate architecture and features.', 'chapters': [{'end': 40459.194, 'start': 39937.779, 'title': 'Servlet and jdbc in java', 'summary': 'Covers the usage of forward and include methods in servlets, session management using cookies, creation of jdbc connections with different driver types, sequential steps to connect to a database in java, jdbc api components, and the role of the jdbc connection interface in maintaining database sessions and transaction management.', 'duration': 521.415, 'highlights': ['Usage of Forward and Include Methods in Servlets The chapter explains the usage of the forward and include methods in servlets for handling responses, where the forward method sends the response from servlet2 to the client, and the include method appends the responses from both servlets and sends the final response to the client.', "Session Management Using Cookies The concept of session management using cookies is covered, highlighting that cookies store textual data on the client machine, and the methods 'getCookies' and 'addCookie' are used to read and create cookies, respectively.", 'Creation of JDBC Connections with Different Driver Types The chapter discusses the creation of JDBC connections with four major types of drivers, namely type 1, type 2, type 3, and type 4, and explains their respective roles in interacting with databases.', 'Sequential Steps to Connect to a Database in Java The sequential steps to connect to a database in Java are outlined, covering the registration of the driver, creation of the connection using driver manager, creation of a statement, execution of SQL queries, and the importance of closing connections in the finally block.', 'JDBC API Components The chapter provides an overview of various interfaces and classes in the Java JDBC package, including connection, statement, prepared statement, result set, result set metadata, database metadata, callable statement, driver manager, BLoB, CLoB, and SQL exception.', "Role of the JDBC Connection Interface in Maintaining Database Sessions and Transaction Management The role of the JDBC connection interface in maintaining database sessions and transaction management is explained, emphasizing its use in managing transaction logic, atomicity, and session closure, along with the differences between the 'execute', 'executeQuery', and 'executeUpdate' APIs."]}, {'end': 41040.119, 'start': 40460.355, 'title': 'Java database connectivity and spring framework overview', 'summary': 'Discusses the differences between execute update and execute methods in jdbc, the core features and modules of the spring framework, including its lightweight architecture and various scopes of bean in spring, with a focus on inversion of control and dependency injection, and the role of dispatcher servlet as a front controller in spring mvc.', 'duration': 579.764, 'highlights': ['The chapter discusses the differences between execute update and execute methods in JDBC. The execute update method performs DML and DDL operations, while the execute method is used to perform any type of SQL statement, and the execute query method is used to execute only select queries.', 'The chapter explains the core features and modules of the Spring framework, including its lightweight architecture and various scopes of bean in Spring, with a focus on inversion of control and dependency injection. The core features and modules of the Spring framework, such as inversion of control, dependency injection, aspect-oriented programming, and different database and web modules, are explained, highlighting the lightweight architecture and various scopes of bean in Spring.', 'The chapter describes the role of dispatcher servlet as a front controller in Spring MVC. The dispatcher servlet is explained as the front controller in Spring MVC, acting like a receptionist for handling requests in the web application.']}, {'end': 41300.704, 'start': 41040.119, 'title': 'Dispatcher servlet and injection in spring', 'summary': 'Explains the roles of dispatcher servlet and context load listener in a web application along with the difference between constructor injection and setter injection, emphasizing reducing dependency and coupling.', 'duration': 260.585, 'highlights': ['Dispatcher Servlet acts as a receptionist in the web application, dispatching requests to corresponding resources. Dispatcher Servlet plays a crucial role in dispatching requests to resources and acts as a receptionist in the web application.', 'Context Load Listener provides event callbacks for the startup and shutdown of the web application context in the spring route. Context Load Listener offers event callbacks for the startup and shutdown of the web application context in the spring route.', 'The concept of constructor injection creates a significant dependency, resulting in a higher value of coupling. Constructor injection creates a significant dependency, leading to a higher value of coupling.', 'Setter injection allows reducing dependency and coupling by creating objects separately and passing them later. Setter injection enables reducing dependency and coupling by creating and passing objects separately.']}, {'end': 41710.295, 'start': 41300.704, 'title': 'Spring & hibernate overview', 'summary': 'Covers the key concepts of spring framework including dependency injection, auto-wiring, exception handling, important annotations, and integration with hibernate. it also provides a detailed overview of hibernate framework including its benefits, usage, and comparison with traditional approaches.', 'duration': 409.591, 'highlights': ['Hibernate framework provides a reference implementation of the JPA Java Persistence API and it makes a great choice as an ORM tool where we got the benefits of loose coupling. Hibernate provides a reference implementation of the JPA Java Persistence API, ensuring loose coupling and offering significant benefits.', "Auto-wiring in Spring allows injection based on names and types, with various modes such as 'no', 'by name', and constructor, reducing explicit injection logic. Auto-wiring in Spring enables injection based on names and types, with various modes available, reducing the need for explicit injection logic.", 'Hibernate eliminates boilerplate code and provides XML support through configuration files and annotation support through JPA. Hibernate eliminates boilerplate code, providing support through both XML configuration files and JPA annotations.', 'Spring ORM module integrates Hibernate framework into a Spring application, providing support for declarative transaction management and annotations. Spring ORM module integrates Hibernate into a Spring application, offering support for declarative transaction management and annotations.', 'Spring framework annotations such as @Controller, @PathVariable, @Qualifier, @Configuration, @Scope, @RequestMapping, @ResponseBody, @Autowired, and @Aspect are important concepts to understand. Understanding important Spring framework annotations including @Controller, @PathVariable, @Qualifier, @Configuration, @Scope, @RequestMapping, @ResponseBody, @Autowired, and @Aspect is crucial.']}, {'end': 42057.281, 'start': 41710.875, 'title': 'Hibernate: architecture and features', 'summary': 'Covers the architecture of hibernate, including the session factory, session, and various apis, with a comparison to jdbc, highlighting the advantages of hibernate in terms of code complexity, support for association, inheritance, and transaction management, as well as cache management and database switching capabilities.', 'duration': 346.406, 'highlights': ['Hibernate provides three levels of cache for improved database operation performance. Hibernate offers three levels of cache which enhance the performance of database operations.', 'Hibernate architecture includes session factory, session, and various APIs such as configuration API, query API, and criteria for data retrieval and management. The architecture of Hibernate involves session factory, session, and various APIs like configuration, query, and criteria for data retrieval and management.', 'Hibernate supports association, inheritance, and various mappings like one-to-one, one-to-many, many-to-many, reducing the need for extensive code compared to JDBC. Hibernate supports association, inheritance, and mappings like one-to-one, one-to-many, many-to-many, reducing the need for extensive code compared to JDBC.', 'Hibernate provides transaction management implicitly, while in JDBC, it needs to be managed separately. Hibernate provides transaction management implicitly, while in JDBC, it needs to be managed separately.', 'Hibernate offers cache management for better performance, whereas in JDBC, it needs to be managed manually. Hibernate offers cache management for better performance, whereas in JDBC, it needs to be managed manually.', 'Switching databases is easier with Hibernate due to the configuration file, compared to JDBC, where it is more complicated. Switching databases is easier with Hibernate due to the configuration file, compared to JDBC, where it is more complicated.']}], 'duration': 2119.502, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/x1RCEvYRTz0/pics/x1RCEvYRTz039937779.jpg', 'highlights': ['Hibernate provides a reference implementation of the JPA Java Persistence API, ensuring loose coupling and offering significant benefits.', 'Hibernate offers three levels of cache which enhance the performance of database operations.', 'The chapter explains the usage of the forward and include methods in servlets for handling responses, where the forward method sends the response from servlet2 to the client, and the include method appends the responses from both servlets and sends the final response to the client.', "The concept of session management using cookies is covered, highlighting that cookies store textual data on the client machine, and the methods 'getCookies' and 'addCookie' are used to read and create cookies, respectively.", 'The chapter discusses the differences between execute update and execute methods in JDBC. The execute update method performs DML and DDL operations, while the execute method is used to perform any type of SQL statement, and the execute query method is used to execute only select queries.', 'The chapter explains the core features and modules of the Spring framework, including its lightweight architecture and various scopes of bean in Spring, with a focus on inversion of control and dependency injection.', 'The chapter describes the role of dispatcher servlet as a front controller in Spring MVC. The dispatcher servlet is explained as the front controller in Spring MVC, acting like a receptionist for handling requests in the web application.', 'Hibernate architecture involves session factory, session, and various APIs like configuration, query, and criteria for data retrieval and management.', 'Auto-wiring in Spring enables injection based on names and types, with various modes available, reducing the need for explicit injection logic.', 'Understanding important Spring framework annotations including @Controller, @PathVariable, @Qualifier, @Configuration, @Scope, @RequestMapping, @ResponseBody, @Autowired, and @Aspect is crucial.']}], 'highlights': ["Java's enduring popularity is evidenced by its in-demand status in the programming language landscape.", "Java's integral role in data storage, major applications, and tech giants' usage demonstrates its significance in the software development industry.", "The versatility of Java's applications spans across various domains including social media, big data, Android, data science, data security, and more, showcasing its wide-ranging utility.", "Java's bytecode is platform independent, allowing it to run on any machine, enhancing security and portability.", 'Java emphasizes compile time and runtime error checking, with improvements in memory management and exception handling, including automatic garbage collection.', "Java's multi-threading feature allows for simultaneous execution of tasks, utilizing the same memory and resources, enhancing performance.", 'Java enables the development of virus-free and tamper-free systems, running in a secure Java runtime environment with minimal interaction with the host operating system.', "Java's dominance in major companies like Airbnb, Uber, Netflix, Spotify, Google, Instagram, and Facebook demonstrates its widespread industry adoption.", "Java's evolution through various versions from JDK 7 to JDK 13 showcases its continuous improvement and updates over the years.", 'The demand for Java developers is high, with India offering salaries ranging from 4 lakhs to 25 lakhs per annum, the UK offering 25,000 pounds to 80,000 pounds per year, and the USA offering 55,000 US dollars to 1 lakh 25,000 US dollars per annum.', 'Java developers in 2020 need to acquire essential beginner and advanced skills such as knowledge of GSP servlets, object-oriented programming, design patterns, abstract classes, interfaces, constructors, file input/output operations, serialization collections, access specifiers, exception handling, generics, DevOps, microservices, and Spring Boot.', 'Java provides advantages for freshers, such as its ease of learning, object-oriented nature, and platform independence, facilitating a smooth transition to other object-oriented programming languages like C++, C#, and Python.', 'The chapter introduces the concepts of inheritance, method overloading, method overriding, polymorphism, abstraction, and encapsulation in object-oriented programming.', 'Java virtual machine handles exceptions by creating an exception object and handing it off to the runtime system, containing name, description, and current program state, and using try-catch-finally methods to handle them.', 'Java generics facilitate code reusability and type safety, eliminating the need for individual typecasting, thus enhancing efficiency and reducing type-related issues.', 'Java socket programming enables communication between applications on different Java runtime environments, supporting both connection-oriented and connectionless modes.', 'The singleton design pattern allows only one instance of a class, saving memory and reusing a single instance for all other classes, providing a global point of access to it.', 'The chapter details the five stages of servlet life cycle and the use of request dispatchers for forwarding requests to other resources, providing a comprehensive understanding of servlet programming.', 'Hibernate provides a reference implementation of the JPA Java Persistence API, ensuring loose coupling and offering significant benefits.']}