title
Java Tutorial

description
Code & Transcript : http://bit.ly/JavaTheTut Subscribe to Me: http://bit.ly/2FWQZTx Best Java Book : https://amzn.to/2SAzsc2 MY UDEMY COURSES ARE 87.5% OFF TIL March 26th ($9.99) ONE IS FREE ➡️ Python Data Science Series for $9.99 : Highest Rated & Largest Python Udemy Course + 56 Hrs + 200 Videos + Data Science https://bit.ly/Master_Python_50 ➡️ C++ Programming Bootcamp Series for $9.99 : Over 23 Hrs + 53 Videos + Quizzes + Graded Assignments + New Videos Every Month https://bit.ly/C_Course_50 ➡️ FREE 15 hour Golang Course!!! : https://bit.ly/go-tutorial9 (100 Available) This is an updated Java tutorial that covers what you'd find in a 1,000 page book. I cover Main, Println, Variables, Data Types, Casting, Math, Random Numbers, Strings, StringBuilder / StringBuffer, Arrays, ArrayList, Iterators, LinkedList, User Input, Conditionals, If / Else, Ternary Operator, Switch, For, While, Do While, Methods, Recursion, Enumerated Types, Exception Handling, Class, This, Getters / Setters, Printf, Inheritance, Interface, Abstract Classes, Streams, Map, Filter, Reduce, Lambda Expressions, File System Manipulation, Character Streams, Binary Streams, Generics, Threads, Databases and more. If you find tutorials like this useful, consider turning off Ad Blocking software. I only use one 5 second skippable ad during this entire 2 1/2 hour video. I'd greatly appreciate it if you don't block it. Thank you :) GET FREE STUFF WHILE SUPPORTING MY TUTORIALS 1. Get a Free Stock : share.robinhood.com/derekb1560 2. Get 2 Free Audiobooks : https://amzn.to/2Y5FV2p Like the channel? Consider becoming a Patreon! Check it out here: ►► https://www.patreon.com/derekbanas *Watch More Learn in One Videos* ►► Java - https://youtu.be/n-xAqcBCws4 ►► C++ - https://youtu.be/Rub-JsjMhWY ►► Python - https://youtu.be/N4mEzFDjqtA ►► MySQL - https://youtu.be/yPu6qV5byu4 ►► PHP - https://youtu.be/7TF00hJI78Y ►► Kotlin - https://youtu.be/H_oGi8uuDpA ►► C# - https://youtu.be/lisiwUZJXqQ ►► JavaScript - https://youtu.be/fju9ii8YsGs

detail
{'title': 'Java Tutorial', 'heatmap': [{'end': 1667.366, 'start': 1578.543, 'weight': 0.732}, {'end': 2081.969, 'start': 1994.187, 'weight': 0.745}, {'end': 2253.066, 'start': 2163.953, 'weight': 0.752}, {'end': 2502.844, 'start': 2413.029, 'weight': 1}, {'end': 5332.995, 'start': 5240.149, 'weight': 0.729}, {'end': 5494.001, 'start': 5404.805, 'weight': 0.759}, {'end': 6077.162, 'start': 5991.392, 'weight': 0.788}], 'summary': '《java tutorial》 is a comprehensive video covering java basics, string and array manipulation, user input, conditionals, methods with recursive functions, object-oriented programming, file i/o, java streams, generics, threads, singleton implementation, and mysql database setup.', 'chapters': [{'end': 247.884, 'segs': [{'end': 32.247, 'src': 'embed', 'start': 0.247, 'weight': 0, 'content': [{'end': 3.129, 'text': 'Hello Internet and welcome to my new Java video tutorial.', 'start': 0.247, 'duration': 2.882}, {'end': 9.373, 'text': "In this one tutorial you're basically going to get a 1000 page book on Java crammed into one video.", 'start': 3.169, 'duration': 6.204}, {'end': 12.115, 'text': 'Underneath the video you will find a table of contents.', 'start': 9.513, 'duration': 2.602}, {'end': 16.338, 'text': 'You can click on anything and jump throughout the video to all the different topics covered.', 'start': 12.135, 'duration': 4.203}, {'end': 21.862, 'text': 'And in the description under the video you will find all of the code as well as a transcript of this entire video.', 'start': 16.478, 'duration': 5.384}, {'end': 23.923, 'text': "And I have a lot to do, so let's get into it.", 'start': 22.202, 'duration': 1.721}, {'end': 30.627, 'text': "OK, so I decided to use the Eclipse IDE because it's free and Java works the same on everything.", 'start': 24.383, 'duration': 6.244}, {'end': 32.247, 'text': 'So use anything you would like.', 'start': 30.727, 'duration': 1.52}], 'summary': 'Java video tutorial condenses 1000-page book into one video, with clickable table of contents and code in the description.', 'duration': 32, 'max_score': 0.247, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4247.jpg'}, {'end': 80.08, 'src': 'embed', 'start': 54.521, 'weight': 4, 'content': [{'end': 60.866, 'text': "i'm just going to call this java tut and go and click on create and everything is all set up here.", 'start': 54.521, 'duration': 6.345}, {'end': 64.729, 'text': "so i'm just going to close that guy and i'm going to come over here and create a class.", 'start': 60.866, 'duration': 3.863}, {'end': 68.031, 'text': "and a class is basically i'm going to get in much more detail.", 'start': 64.729, 'duration': 3.302}, {'end': 74.996, 'text': 'basically, a class is just going to be a model of a real world system or object.', 'start': 68.031, 'duration': 6.965}, {'end': 76.977, 'text': "But, like I said, I'll get more into that later.", 'start': 75.256, 'duration': 1.721}, {'end': 80.08, 'text': "So I'm going to go and right click on that in the source folder.", 'start': 77.077, 'duration': 3.003}], 'summary': 'Creating a java class to model real-world system or object.', 'duration': 25.559, 'max_score': 54.521, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws454521.jpg'}, {'end': 165.095, 'src': 'embed', 'start': 136.893, 'weight': 5, 'content': [{'end': 144.46, 'text': 'Public just means that anyone or any code that has access to your class, and this is your class name, is going to be able to run this.', 'start': 136.893, 'duration': 7.567}, {'end': 152.749, 'text': "Static means, and there'll be more on this later in the tutorial, it basically means that it is a function that belongs to the class.", 'start': 144.761, 'duration': 7.988}, {'end': 156.191, 'text': 'like I said before, we create objects and such,', 'start': 153.109, 'duration': 3.082}, {'end': 165.095, 'text': 'and some functions are going to be specific to the objects we create and some will just be based off of the class.', 'start': 156.191, 'duration': 8.904}], 'summary': 'Public access allows anyone to run class functions; static functions belong to the class.', 'duration': 28.202, 'max_score': 136.893, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4136893.jpg'}, {'end': 230.57, 'src': 'embed', 'start': 199.941, 'weight': 6, 'content': [{'end': 205.166, 'text': "Now I'm going to be using a whole bunch of borrowed libraries of functions.", 'start': 199.941, 'duration': 5.225}, {'end': 207.969, 'text': 'And if you would like to import some of them.', 'start': 205.587, 'duration': 2.382}, {'end': 212.013, 'text': "So one of the ones I'm going to use is a Java util.", 'start': 208.329, 'duration': 3.684}, {'end': 215.937, 'text': 'And if I want to import all of them, I put a star at the end of it.', 'start': 212.473, 'duration': 3.464}, {'end': 223.404, 'text': 'And this is going to be used for array functions, array lists, iterators, and a whole bunch of other different things.', 'start': 216.357, 'duration': 7.047}, {'end': 230.57, 'text': "I'm also going to be using something called IntStream that is going to be used to generate ranges.", 'start': 223.644, 'duration': 6.926}], 'summary': 'Using java util libraries for array functions, array lists, and intstream for generating ranges.', 'duration': 30.629, 'max_score': 199.941, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4199941.jpg'}], 'start': 0.247, 'title': 'Java tutorial and project creation', 'summary': 'Covers a comprehensive java tutorial crammed into one video, with a table of contents for easy navigation, eclipse ide as the recommended platform, and code and transcript provided in the description. it also demonstrates the creation of a new java project and class, explaining the process of setting up the project, creating a class with a main function, and explaining the use of different keywords and imported libraries.', 'chapters': [{'end': 32.247, 'start': 0.247, 'title': 'Java tutorial: 1000 pages in one video', 'summary': 'Covers a comprehensive java tutorial crammed into one video, with a table of contents for easy navigation, eclipse ide as the recommended platform, and code and transcript provided in the description.', 'duration': 32, 'highlights': ['The video tutorial covers a comprehensive Java tutorial crammed into one video, providing a 1000 page book equivalent of content (quantifiable data).', 'A table of contents is available for easy navigation throughout the video, enhancing user experience (quantifiable data).', 'The Eclipse IDE is recommended for the tutorial due to its free availability and consistent functionality across platforms (quantifiable data).', 'Code and a transcript of the entire video are provided in the description, ensuring accessibility and reference for viewers (quantifiable data).']}, {'end': 247.884, 'start': 32.287, 'title': 'Creating java project and class', 'summary': 'Demonstrates the creation of a new java project and class, explaining the process of setting up the project, creating a class with a main function, and explaining the use of different keywords and imported libraries.', 'duration': 215.597, 'highlights': ["Explaining the creation of a new Java project and class The speaker demonstrates creating a Java project named 'Java Tut' using Java 11, and then proceeds to create a class named 'hello world' with a main function, explaining the purpose of classes as models of real-world systems or objects.", "Explanation of keywords and their meanings The speaker explains the meanings of keywords like 'public', 'static', 'void', and 'string', providing insights into their functionalities within the context of Java programming.", 'Importing libraries for additional functionalities The speaker discusses the import of libraries such as Java util and IntStream, highlighting their uses for array functions, array lists, iterators, and generating ranges within the program.']}], 'duration': 247.637, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4247.jpg', 'highlights': ['The video tutorial covers a comprehensive Java tutorial crammed into one video, providing a 1000 page book equivalent of content (quantifiable data).', 'A table of contents is available for easy navigation throughout the video, enhancing user experience (quantifiable data).', 'The Eclipse IDE is recommended for the tutorial due to its free availability and consistent functionality across platforms (quantifiable data).', 'Code and a transcript of the entire video are provided in the description, ensuring accessibility and reference for viewers (quantifiable data).', "Explaining the creation of a new Java project and class The speaker demonstrates creating a Java project named 'Java Tut' using Java 11, and then proceeds to create a class named 'hello world' with a main function, explaining the purpose of classes as models of real-world systems or objects.", "Explanation of keywords and their meanings The speaker explains the meanings of keywords like 'public', 'static', 'void', and 'string', providing insights into their functionalities within the context of Java programming.", 'Importing libraries for additional functionalities The speaker discusses the import of libraries such as Java util and IntStream, highlighting their uses for array functions, array lists, iterators, and generating ranges within the program.']}, {'end': 1021.433, 'segs': [{'end': 314.026, 'src': 'embed', 'start': 272.174, 'weight': 1, 'content': [{'end': 278.678, 'text': "you're going to start that off with the word final and then double is what this guy is going to be.", 'start': 272.174, 'duration': 6.504}, {'end': 284.741, 'text': "And I'm just going to call this short pi is equal to 3.14159.", 'start': 278.698, 'duration': 6.043}, {'end': 289.444, 'text': 'Okay, so once you set that value, it cannot be changed.', 'start': 284.741, 'duration': 4.703}, {'end': 290.765, 'text': 'And that is called a constant.', 'start': 289.684, 'duration': 1.081}, {'end': 296.37, 'text': "Okay, so now what we're going to do is fulfill the whole hello world thing that we want to do here.", 'start': 290.965, 'duration': 5.405}, {'end': 303.476, 'text': "And if you want to output information into your console, you're going to type in system out followed by print line.", 'start': 296.67, 'duration': 6.806}, {'end': 312.044, 'text': 'And what print line means is that it wants to print out everything that is between the double quotes and then add a new line at the end of it.', 'start': 303.636, 'duration': 8.408}, {'end': 313.005, 'text': 'And there you go.', 'start': 312.404, 'duration': 0.601}, {'end': 314.026, 'text': "That's all you really need.", 'start': 313.045, 'duration': 0.981}], 'summary': "Introducing a constant 'pi' as 3.14159 and showcasing 'system.out.println' for console output.", 'duration': 41.852, 'max_score': 272.174, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4272174.jpg'}, {'end': 404.988, 'src': 'embed', 'start': 372.574, 'weight': 0, 'content': [{'end': 374.897, 'text': 'So you can have multiple different variables on the same line.', 'start': 372.574, 'duration': 2.323}, {'end': 377.198, 'text': "And that's just the basics of variables.", 'start': 375.057, 'duration': 2.141}, {'end': 380.019, 'text': 'And now what I want to do is talk about data types.', 'start': 377.498, 'duration': 2.521}, {'end': 384.94, 'text': 'Now Java requires that every variable have a defined data type.', 'start': 380.339, 'duration': 4.601}, {'end': 391.882, 'text': 'And basically what data type means is how much space we are setting aside in memory to store the values we want to store.', 'start': 385.14, 'duration': 6.742}, {'end': 394.483, 'text': 'Okay, so you can see all the primitives here.', 'start': 392.102, 'duration': 2.381}, {'end': 397.784, 'text': "There's byte, short, character, boolean, int, float, double, and long.", 'start': 394.523, 'duration': 3.261}, {'end': 404.988, 'text': 'And like I said, they are all going to be able to store a minimum value as well as a maximum value.', 'start': 398.064, 'duration': 6.924}], 'summary': 'Java variables and data types define memory space for storing values.', 'duration': 32.414, 'max_score': 372.574, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4372574.jpg'}, {'end': 569.357, 'src': 'embed', 'start': 546.304, 'weight': 3, 'content': [{'end': 554.307, 'text': "and basically, a double is going to have a precision up to 15 decimal places and you don't put an f on the end of it, of course.", 'start': 546.304, 'duration': 8.003}, {'end': 556.908, 'text': 'and if we go and put that inside of there and then run it,', 'start': 554.307, 'duration': 2.601}, {'end': 563.871, 'text': 'you will see that a double is much more precise than a float and you can come in here and type double, of course, All right.', 'start': 556.908, 'duration': 6.963}, {'end': 569.357, 'text': "You're also going to be able to use scientific notation whenever you're creating your values.", 'start': 564.091, 'duration': 5.266}], 'summary': 'Double is more precise than float, with up to 15 decimal places.', 'duration': 23.053, 'max_score': 546.304, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4546304.jpg'}, {'end': 639.345, 'src': 'embed', 'start': 605.748, 'weight': 4, 'content': [{'end': 610.991, 'text': 'Now by casting, all that I am referring to is converting from one data type to another.', 'start': 605.748, 'duration': 5.243}, {'end': 615.293, 'text': 'And by default, you can always convert from smaller types to larger types.', 'start': 611.351, 'duration': 3.942}, {'end': 617.294, 'text': "So let's say we create an integer here.", 'start': 615.333, 'duration': 1.961}, {'end': 620.495, 'text': "I'm going to call this small int is equal to 10.", 'start': 617.314, 'duration': 3.181}, {'end': 627.959, 'text': 'I can then go and get a long and go small long is equal to small, whoops, int like that.', 'start': 620.495, 'duration': 7.464}, {'end': 630, 'text': 'And everything works without any issues.', 'start': 628.159, 'duration': 1.841}, {'end': 639.345, 'text': "However, if you are going to be converting from integers and doubles and from large to small, you're going to have to do that in a different way.", 'start': 630.24, 'duration': 9.105}], 'summary': 'Casting allows converting between data types. smaller types can be converted to larger types by default. converting between integers and doubles or from large to small types requires a different approach.', 'duration': 33.597, 'max_score': 605.748, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4605748.jpg'}, {'end': 975.547, 'src': 'embed', 'start': 929.451, 'weight': 5, 'content': [{'end': 935.053, 'text': 'These guys are all going to be built in so you can get absolute value, ceiling, floor, round and so forth.', 'start': 929.451, 'duration': 5.602}, {'end': 937.513, 'text': "Let's go and run it so you can actually see what's going on.", 'start': 935.093, 'duration': 2.42}, {'end': 939.954, 'text': 'And there is look at all those different guys.', 'start': 937.734, 'duration': 2.22}, {'end': 950.958, 'text': 'So absolute value, ceiling, floor, round, max, min, exponents and all of the other different mathematical calculations you can perform using Java.', 'start': 940.254, 'duration': 10.704}, {'end': 954.799, 'text': "And there's going to be all kinds of other cool things we can do with math, as you'll see in a bit.", 'start': 951.218, 'duration': 3.581}, {'end': 958.921, 'text': "And we're also going to be able to come in here and create random numbers.", 'start': 954.939, 'duration': 3.982}, {'end': 967.944, 'text': "So let's go and create or define our minimum value that we want to work with, which is going to be equal to 5.", 'start': 959.041, 'duration': 8.903}, {'end': 973.406, 'text': "So let's say I want to generate a random number that goes from 5 up to say, 20.", 'start': 967.944, 'duration': 5.462}, {'end': 975.547, 'text': 'this is exactly how I do that.', 'start': 973.406, 'duration': 2.141}], 'summary': 'Java allows performing various mathematical calculations, including absolute value, ceiling, floor, round, max, min, and exponents, as well as generating random numbers within specified ranges.', 'duration': 46.096, 'max_score': 929.451, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4929451.jpg'}], 'start': 248.264, 'title': 'Java programming basics and precision', 'summary': 'Covers java basics including variables, data types, and output, with examples and explanations. it also discusses floating point precision, with floats having up to 6 decimal places and doubles having up to 15 decimal places, and data type casting, including converting between different data types and using math functions.', 'chapters': [{'end': 477.795, 'start': 248.264, 'title': 'Java basics: variables, data types, and output', 'summary': 'Covers the basics of java programming, including creating constants, outputting information to the console, using eclipse for java programs, creating variables, and understanding data types with examples and explanations.', 'duration': 229.531, 'highlights': ['Java requires every variable to have a defined data type Java requires that every variable have a defined data type, and data type determines the amount of space allocated in memory. The transcript explains various data types like byte, short, character, boolean, int, float, double, and long, and their respective minimum and maximum values.', "Creating constants with 'final' keyword The transcript explains how to create constants in Java using the 'final' keyword, which makes the value unchangeable. It provides an example of creating a constant variable 'pi' with a value of 3.14159.", "Outputting information to the console with 'System.out.println' The chapter demonstrates how to output information to the console using 'System.out.println' in Java. It explains that this function prints out the content within double quotes and adds a new line at the end."]}, {'end': 1021.433, 'start': 478.135, 'title': 'Floating point precision and data type casting', 'summary': 'Covers the precision of floating point numbers, with floats having up to 6 decimal places and doubles having up to 15 decimal places. it also discusses data type casting, including converting between different data types and using math functions.', 'duration': 543.298, 'highlights': ['Doubles have a precision of up to 15 decimal places, while floats have a precision of up to 6 decimal places. Doubles have a precision of up to 15 decimal places, making them more precise than floats, which have a precision of up to 6 decimal places.', 'Data type casting allows for conversion between different data types, such as converting from smaller types to larger types. Data type casting enables the conversion between different data types, allowing for the conversion from smaller types to larger types.', 'Math functions such as absolute value, ceiling, floor, round, max, min, and exponents are available for use. Java provides built-in math functions, including absolute value, ceiling, floor, round, max, min, and exponents, for various mathematical calculations.', 'Random numbers can be generated within a specific range using the math random function. Random numbers within a specific range can be generated using the math random function, allowing for the creation of random values for different use cases.']}], 'duration': 773.169, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws4248264.jpg', 'highlights': ['Java requires every variable to have a defined data type, determining the space allocated in memory.', "Creating constants in Java using the 'final' keyword, making the value unchangeable.", "Outputting information to the console using 'System.out.println' in Java.", 'Doubles have a precision of up to 15 decimal places, more precise than floats.', 'Data type casting enables conversion between different data types.', 'Java provides built-in math functions for various mathematical calculations.', 'Random numbers within a specific range can be generated using the math random function.']}, {'end': 2373.295, 'segs': [{'end': 1053.417, 'src': 'embed', 'start': 1021.713, 'weight': 0, 'content': [{'end': 1023.895, 'text': 'So that was a whole bunch of information about math.', 'start': 1021.713, 'duration': 2.182}, {'end': 1025.336, 'text': 'Now I want to talk about strings.', 'start': 1023.955, 'duration': 1.381}, {'end': 1030.441, 'text': 'Now strings are going to be objects or what are referred to as reference types.', 'start': 1025.676, 'duration': 4.765}, {'end': 1033.284, 'text': "And they're going to have a whole bunch of built-in methods.", 'start': 1030.741, 'duration': 2.543}, {'end': 1036.707, 'text': "And you're going to see a whole bunch of them here in a second.", 'start': 1033.884, 'duration': 2.823}, {'end': 1038.208, 'text': "So let's go and create a string.", 'start': 1036.767, 'duration': 1.441}, {'end': 1040.19, 'text': "And let's just have this be Derek.", 'start': 1038.528, 'duration': 1.662}, {'end': 1045.953, 'text': "Now, like I said before, you're going to be able to combine strings with the plus sign as you already have done.", 'start': 1040.329, 'duration': 5.624}, {'end': 1053.417, 'text': "So we'll do something like whole name is equal to, and I can go and throw the variable version of it inside of there if I'd like,", 'start': 1046.173, 'duration': 7.244}], 'summary': 'Introduction to string objects and built-in methods for manipulation.', 'duration': 31.704, 'max_score': 1021.713, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws41021713.jpg'}, {'end': 1337.341, 'src': 'embed', 'start': 1305.86, 'weight': 1, 'content': [{'end': 1311.524, 'text': "We're also going to be able to turn strings into arrays, which we are going to cover more later on.", 'start': 1305.86, 'duration': 5.664}, {'end': 1317.989, 'text': "And what I'm going to do here is I'm actually going to use what's called an enhanced for loop, which I will cover more later on.", 'start': 1311.804, 'duration': 6.185}, {'end': 1324.515, 'text': 'just allows you to iterate or slowly go character by character through a string, for example.', 'start': 1318.953, 'duration': 5.562}, {'end': 1329.917, 'text': "So I'm going to go String X and I'll cover this in more detail later.", 'start': 1324.775, 'duration': 5.142}, {'end': 1337.341, 'text': 'If we want to convert a string into an array, we would just go W name and then follow that up with split,', 'start': 1330.117, 'duration': 7.224}], 'summary': 'Covering conversion of strings into arrays using enhanced for loop and split method.', 'duration': 31.481, 'max_score': 1305.86, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws41305860.jpg'}, {'end': 1444.574, 'src': 'embed', 'start': 1412.785, 'weight': 2, 'content': [{'end': 1417.086, 'text': 'So making a whole bunch of changes, use a string builder instead of a regular old string.', 'start': 1412.785, 'duration': 4.301}, {'end': 1424.188, 'text': "And the only difference between string builder and a string buffer is a string buffer is used whenever you're using threads.", 'start': 1417.366, 'duration': 6.822}, {'end': 1426.788, 'text': "I'll cover threads later on in the tutorial.", 'start': 1424.528, 'duration': 2.26}, {'end': 1435.17, 'text': "So let's go and create a string builder and how you do it is just go string builder like that and equal to new string.", 'start': 1426.968, 'duration': 8.202}, {'end': 1444.574, 'text': "builder, and then you can come in and do something like i'm a string builder and of course you're going to be able to put this on a separate line if you'd like.", 'start': 1435.649, 'duration': 8.925}], 'summary': 'Using string builder for efficiency, switching from string buffer, thread coverage later.', 'duration': 31.789, 'max_score': 1412.785, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws41412785.jpg'}, {'end': 1667.366, 'src': 'heatmap', 'start': 1578.543, 'weight': 0.732, 'content': [{'end': 1581.466, 'text': "OK, so there's a rundown of string builders and string buffers.", 'start': 1578.543, 'duration': 2.923}, {'end': 1584.068, 'text': 'Like I said, just use a string buffer instead.', 'start': 1581.486, 'duration': 2.582}, {'end': 1589.312, 'text': "Obviously, it's like this FF if you're using string or if you're using threads.", 'start': 1584.568, 'duration': 4.744}, {'end': 1591.114, 'text': 'And now I want to talk about arrays.', 'start': 1589.593, 'duration': 1.521}, {'end': 1600.382, 'text': 'Alright, so basically an array is just boxes in memory that allow you to assign a name to multiple values instead of just one value.', 'start': 1591.514, 'duration': 8.868}, {'end': 1604.285, 'text': "So let's go and let's create an integer array and that's exactly how you do it.", 'start': 1600.502, 'duration': 3.783}, {'end': 1609.87, 'text': "And let's say that we would like to set aside 10 spaces for our numbers.", 'start': 1604.565, 'duration': 5.305}, {'end': 1613.473, 'text': "So we'll just go int and then say 10 and that's what it does.", 'start': 1610.21, 'duration': 3.263}, {'end': 1616.936, 'text': 'It sets aside 10 boxes to store 10 integer values.', 'start': 1613.533, 'duration': 3.403}, {'end': 1621.057, 'text': 'We can go and assign them using indexes, just like this.', 'start': 1617.356, 'duration': 3.701}, {'end': 1624.378, 'text': "So let's say we want to put one in the very, very first box in the array.", 'start': 1621.117, 'duration': 3.261}, {'end': 1625.339, 'text': "That's how that's done.", 'start': 1624.418, 'duration': 0.921}, {'end': 1629.06, 'text': 'We can also come in and fill the array with a value.', 'start': 1625.539, 'duration': 3.521}, {'end': 1631.661, 'text': 'So we can say arrays and fill.', 'start': 1629.1, 'duration': 2.561}, {'end': 1638.443, 'text': 'And you just put in what the array name is and what value you would like to fill every single little spot with.', 'start': 1632.141, 'duration': 6.302}, {'end': 1640.464, 'text': "And that's going to put a two in all those spots.", 'start': 1638.563, 'duration': 1.901}, {'end': 1644.605, 'text': 'Also going to be able to get values by referring to indexes.', 'start': 1640.864, 'duration': 3.741}, {'end': 1645.946, 'text': "So let's go and get that.", 'start': 1644.705, 'duration': 1.241}, {'end': 1652.204, 'text': "You're going to be able to come in and get your array size just by following that up with the word length.", 'start': 1646.226, 'duration': 5.978}, {'end': 1654.636, 'text': "As you can see, we're reusing a lot of things.", 'start': 1652.594, 'duration': 2.042}, {'end': 1659.039, 'text': "You're going to be able to create and add values at the same time.", 'start': 1654.836, 'duration': 4.203}, {'end': 1667.366, 'text': "So let's go and go string and A2 is equal to, and we will throw in, we can throw strings inside of here.", 'start': 1659.099, 'duration': 8.267}], 'summary': 'Discusses string builders, string buffers, and arrays in java programming.', 'duration': 88.823, 'max_score': 1578.543, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws41578543.jpg'}, {'end': 1815.303, 'src': 'embed', 'start': 1787.654, 'weight': 3, 'content': [{'end': 1791.815, 'text': "You're also going to be able to create and initialize at the same time.", 'start': 1787.654, 'duration': 4.161}, {'end': 1796.577, 'text': "And one thing that's kind of confusing is sometimes people wonder exactly what this looks like,", 'start': 1791.975, 'duration': 4.602}, {'end': 1798.798, 'text': 'and you know what the multidimensional array looks like.', 'start': 1796.577, 'duration': 2.221}, {'end': 1808.08, 'text': "Basically, what we're saying here is how many down or how many rows we want to set aside, like a matricy with, you know, mathematics.", 'start': 1798.918, 'duration': 9.162}, {'end': 1811.822, 'text': 'And this number tells me how many across.', 'start': 1808.481, 'duration': 3.341}, {'end': 1815.303, 'text': "So let's go and let's create and initialize at the same time.", 'start': 1812.082, 'duration': 3.221}], 'summary': 'Demonstrating creation and initialization of multidimensional arrays for matrices in mathematics.', 'duration': 27.649, 'max_score': 1787.654, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws41787654.jpg'}, {'end': 2081.969, 'src': 'heatmap', 'start': 1994.187, 'weight': 0.745, 'content': [{'end': 2000.152, 'text': 'and how you do that is you call the sort function, bypassing it the array that you want to sort,', 'start': 1994.187, 'duration': 5.965}, {'end': 2011.321, 'text': 'and then we can come in and go and convert an array into a string that we can output Just by going arrays to string and pass in a 8..', 'start': 2000.152, 'duration': 11.169}, {'end': 2013.904, 'text': 'And if we run it, you can see that all works.', 'start': 2011.321, 'duration': 2.583}, {'end': 2017.327, 'text': 'Alright, so there is a whole bunch of things on arrays.', 'start': 2014.284, 'duration': 3.043}, {'end': 2018.568, 'text': 'More coming up later.', 'start': 2017.407, 'duration': 1.161}, {'end': 2020.73, 'text': 'Now I want to talk about array lists.', 'start': 2018.608, 'duration': 2.122}, {'end': 2029.277, 'text': 'Okay, so people use array lists because they resize and provide for easy insertion and deletion versus a regular array.', 'start': 2021.03, 'duration': 8.247}, {'end': 2034.402, 'text': 'And how you would create one is you go ArrayList and String.', 'start': 2029.517, 'duration': 4.885}, {'end': 2036.864, 'text': 'This is if you want to string ArrayList.', 'start': 2034.422, 'duration': 2.442}, {'end': 2040.027, 'text': 'And you can obviously put anything you want inside of them.', 'start': 2037.245, 'duration': 2.782}, {'end': 2045.913, 'text': "And let's say that I want to have 20 spaces set aside whenever I very first start them off.", 'start': 2040.207, 'duration': 5.706}, {'end': 2047.374, 'text': 'This is how you would do that.', 'start': 2046.033, 'duration': 1.341}, {'end': 2051.078, 'text': 'And then just put the 20 there at the end to define how big you want it to be.', 'start': 2047.675, 'duration': 3.403}, {'end': 2058.04, 'text': 'now, if you want to go and add values to an array list, you just go add and you can put something like sue.', 'start': 2051.277, 'duration': 6.763}, {'end': 2063.002, 'text': "you can also generate an array list and here i'll show you a way to do it.", 'start': 2058.04, 'duration': 4.962}, {'end': 2069.583, 'text': 'so we can go ray list and this time i want to generate an integer array list.', 'start': 2063.002, 'duration': 6.581}, {'end': 2077.706, 'text': 'note the uppercase i that you have there and then we could come in and go array list And then I will generate one.', 'start': 2069.583, 'duration': 8.123}, {'end': 2081.969, 'text': "So I'll go arrays and follow that up with as list.", 'start': 2077.746, 'duration': 4.223}], 'summary': 'Introduction to sorting arrays and creating array lists for easy manipulation and resizing.', 'duration': 87.782, 'max_score': 1994.187, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws41994187.jpg'}, {'end': 2253.066, 'src': 'heatmap', 'start': 2163.953, 'weight': 0.752, 'content': [{'end': 2164.954, 'text': 'That would delete everything.', 'start': 2163.953, 'duration': 1.001}, {'end': 2166.714, 'text': "And then let's talk about iterators.", 'start': 2165.094, 'duration': 1.62}, {'end': 2176.538, 'text': 'Basically, an iterator is going to allow you to cycle through collections like ArrayList and other collections that we have seen and will see.', 'start': 2166.814, 'duration': 9.724}, {'end': 2184.461, 'text': "And to create one, you just go iterator, and I'm just going to call this it is equal to al2 and iterator.", 'start': 2176.998, 'duration': 7.463}, {'end': 2185.421, 'text': 'And there you go.', 'start': 2184.801, 'duration': 0.62}, {'end': 2186.562, 'text': 'Now you have an iterator.', 'start': 2185.481, 'duration': 1.081}, {'end': 2190.243, 'text': "And to use it to cycle, I'm going to cover loops here in a second.", 'start': 2186.842, 'duration': 3.401}, {'end': 2192.724, 'text': 'Of course, you can always jump around within the playlist.', 'start': 2190.443, 'duration': 2.281}, {'end': 2197.827, 'text': 'And how you call for each of the individual values in the array list is hasNext.', 'start': 2193.044, 'duration': 4.783}, {'end': 2201.849, 'text': 'And then we can command and output each of those individual values.', 'start': 2198.007, 'duration': 3.842}, {'end': 2204.811, 'text': 'So we can just go it and next.', 'start': 2202.149, 'duration': 2.662}, {'end': 2209.673, 'text': 'And as long as there is a value to output, this loop will continue looping forever.', 'start': 2205.111, 'duration': 4.562}, {'end': 2211.934, 'text': 'And then it will output all those different values.', 'start': 2210.013, 'duration': 1.921}, {'end': 2215.476, 'text': 'Okay, so brief overview of some things you can do with array lists.', 'start': 2212.155, 'duration': 3.321}, {'end': 2218.458, 'text': "I actually prefer linked lists, and that's what I'm going to cover next.", 'start': 2215.496, 'duration': 2.962}, {'end': 2225.347, 'text': 'Now, linked lists are basically used or best used whenever you find you have to make many changes in the middle of your list.', 'start': 2218.843, 'duration': 6.504}, {'end': 2227.989, 'text': "I have an entire tutorial on how they're created,", 'start': 2225.467, 'duration': 2.522}, {'end': 2236.354, 'text': 'but basically the way they work is that each item or link in the list has only a reference to the value before and the value after it.', 'start': 2227.989, 'duration': 8.365}, {'end': 2244.359, 'text': "And how you create one is you come in and go linked list and let's say you want to work with integers and let's just create one here.", 'start': 2236.674, 'duration': 7.685}, {'end': 2253.066, 'text': 'equal to new and then linked list again, and then of course integer, and then you can just say whatever you want inside of it.', 'start': 2244.899, 'duration': 8.167}], 'summary': 'Overview of iterators and linked lists for cycling through and making changes in collections like arraylist and linkedlist.', 'duration': 89.113, 'max_score': 2163.953, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws42163953.jpg'}], 'start': 1021.713, 'title': 'String and array manipulation in programming', 'summary': 'Covers the manipulation of strings in javascript and java, including combining strings, indexing, character retrieval, and methods such as substring, replace, and split. it also explores the usage of string builders and buffers, as well as working with arrays and array lists, covering topics such as accessing values, sorting, resizing, and iteration.', 'chapters': [{'end': 1081.975, 'start': 1021.713, 'title': 'Working with strings in javascript', 'summary': 'Covers creating and manipulating strings in javascript, including combining strings with the plus sign, changing variable values, and automatic conversion when using primitives.', 'duration': 60.262, 'highlights': ['Strings in JavaScript are objects with built-in methods, allowing for manipulation of string values.', 'The plus sign can be used to combine strings, and variables can be included within the combined string.', 'Variables can have their values changed, and strings can be joined together using the plus sign.', 'Automatic conversion occurs when using primitives of any type in JavaScript.']}, {'end': 1372.528, 'start': 1082.055, 'title': 'String manipulation in java', 'summary': 'Covers string manipulation in java, including indexing, character retrieval, string comparison, and conversion to arrays. it also explains methods like substring, replace, and split, providing a comprehensive overview of string handling in java.', 'duration': 290.473, 'highlights': ['The chapter covers string manipulation in Java, including indexing, character retrieval, string comparison, and conversion to arrays. The chapter provides an overview of various string manipulation techniques, including indexing, character retrieval, string comparison, and conversion to arrays.', 'It also explains methods like substring, replace, and split, providing a comprehensive overview of string handling in Java. The chapter delves into specific methods such as substring, replace, and split, offering a comprehensive understanding of string manipulation in Java.', "If you want to compare two different strings, you want to ignore case, you would instead just go equals, like this. The explanation highlights the method of ignoring case while comparing strings, emphasizing the usage of 'equals' for this purpose.", "Let's come in and we'll go W name and replace and let's change this. What we're searching for and what we want to replace is Derek in this situation, and we want to change that to Bob instead. The example illustrates the process of replacing specific strings within a given string, showcasing the practical application of the 'replace' method.", "We're also going to be able to turn strings into arrays, which we are going to cover more later on. The transcript mentions the capability of converting strings into arrays, indicating that this topic will be covered in more detail later."]}, {'end': 1854.026, 'start': 1372.889, 'title': 'String builders and buffers', 'summary': 'Covers the usage of string builders and buffers, highlighting their benefits over regular strings, such as preventing memory issues and providing various methods for manipulating strings, including appending, inserting, replacing, and deleting, as well as demonstrating the usage of string buffers for multithreading.', 'duration': 481.137, 'highlights': ['String builder prevents memory issues by creating a new place in memory every time a string is created, and it is recommended for making many string changes. String builder creates a new place in memory every time a string is created, and it is recommended for making many string changes.', 'String builder provides methods for manipulating strings, including appending, inserting, replacing, extracting sub-strings, deleting characters, getting a character at a specific index, and finding the index of a specific string. String builder provides methods for manipulating strings, including appending, inserting, replacing, extracting sub-strings, deleting characters, getting a character at a specific index, and finding the index of a specific string.', 'String buffer is used for multithreading purposes and is recommended over string builder when dealing with threads. String buffer is used for multithreading purposes and is recommended over string builder when dealing with threads.']}, {'end': 2373.295, 'start': 1854.306, 'title': 'Working with arrays and array lists', 'summary': 'Covers working with arrays, including accessing specific values and creating multi-dimensional arrays, as well as discussing array copying, comparison, sorting, and conversion. it also explores the features of array lists such as resizing, insertion, and deletion, and demonstrates their manipulation and iteration. linked lists are briefly introduced, emphasizing their use for making changes within a list.', 'duration': 518.989, 'highlights': ['Working with multi-dimensional arrays Demonstrating the creation and access of multi-dimensional arrays, showcasing the ability to work with three-dimensional arrays and access specific indices.', 'Copying and comparing arrays Explaining the process of copying one array into another and comparing arrays for equality, showcasing the functionalities like arrays copying, comparison, sorting, and conversion.', 'Array list manipulation and iteration Covering the features of array lists, including adding values, generating array lists, using enhanced for loop for printing, and manipulating values (addition, removal, clearing). It also introduces the concept of iterators for cycling through array lists.', 'Introduction to linked lists Briefly introducing linked lists and their best use cases, explaining their structure and demonstrating operations like adding values, adding multiple items, checking, getting, removing, and converting to an array.']}], 'duration': 1351.582, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws41021713.jpg', 'highlights': ['Strings in JavaScript are objects with built-in methods, allowing for manipulation of string values.', 'The chapter covers string manipulation in Java, including indexing, character retrieval, string comparison, and conversion to arrays.', 'String builder provides methods for manipulating strings, including appending, inserting, replacing, extracting sub-strings, deleting characters, getting a character at a specific index, and finding the index of a specific string.', 'Working with multi-dimensional arrays Demonstrating the creation and access of multi-dimensional arrays, showcasing the ability to work with three-dimensional arrays and access specific indices.']}, {'end': 3085.312, 'segs': [{'end': 2502.844, 'src': 'heatmap', 'start': 2413.029, 'weight': 1, 'content': [{'end': 2419.032, 'text': "So I'm going to use the scanner object up there and I'm going to go has next line,", 'start': 2413.029, 'duration': 6.003}, {'end': 2423.595, 'text': 'which is what you use if you are going to be receiving a string input.', 'start': 2419.032, 'duration': 4.563}, {'end': 2425.716, 'text': 'and make sure that this is uppercase.', 'start': 2423.835, 'duration': 1.881}, {'end': 2429.86, 'text': 'And what you would do is instead of line, line represents strings.', 'start': 2426.237, 'duration': 3.623}, {'end': 2436.644, 'text': 'If you want to check for any of the other different data types, you type things like short or integer or whatever the different data types are.', 'start': 2430.02, 'duration': 6.624}, {'end': 2443.429, 'text': 'Then if we come in here and we did get a string, what I can do is say username is going to be equal to.', 'start': 2436.885, 'duration': 6.544}, {'end': 2448.313, 'text': 'And if I want to get that string that they entered, I go next line and then I can get it.', 'start': 2443.71, 'duration': 4.603}, {'end': 2455.536, 'text': 'And of course, just replace the line with things like short and integer to get them to work with the other different data types.', 'start': 2448.533, 'duration': 7.003}, {'end': 2458.837, 'text': 'And then I can go and do an enhanced hello world.', 'start': 2455.856, 'duration': 2.981}, {'end': 2462.939, 'text': 'So I can just go like this and then follow that up with a username.', 'start': 2459.057, 'duration': 3.882}, {'end': 2470.621, 'text': "And if we run it, it'll say enter name and I can come in here and say Debbie and it'll say hello Debbie.", 'start': 2463.499, 'duration': 7.122}, {'end': 2472.142, 'text': 'All right, so cool stuff.', 'start': 2470.882, 'duration': 1.26}, {'end': 2475.032, 'text': 'You can also go and use dialog boxes.', 'start': 2472.449, 'duration': 2.583}, {'end': 2478.055, 'text': "So let's go and open a dialog box.", 'start': 2475.352, 'duration': 2.703}, {'end': 2484.142, 'text': "I'll call this job name is equal to and then we can go down to the next line.", 'start': 2478.115, 'duration': 6.027}, {'end': 2490.368, 'text': 'And then what I want to do is go J option pane and show input dialog.', 'start': 2484.162, 'duration': 6.206}, {'end': 2494.533, 'text': 'And I can put my message inside of here, which is going to be enter name.', 'start': 2490.909, 'duration': 3.624}, {'end': 2502.844, 'text': 'And then I can go system out and do a hello world thing again just by going JOP name.', 'start': 2495.197, 'duration': 7.647}], 'summary': 'Using scanner object for string input and dialog boxes, displaying hello world with user input.', 'duration': 89.815, 'max_score': 2413.029, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws42413029.jpg'}, {'end': 2448.313, 'src': 'embed', 'start': 2419.032, 'weight': 0, 'content': [{'end': 2423.595, 'text': 'which is what you use if you are going to be receiving a string input.', 'start': 2419.032, 'duration': 4.563}, {'end': 2425.716, 'text': 'and make sure that this is uppercase.', 'start': 2423.835, 'duration': 1.881}, {'end': 2429.86, 'text': 'And what you would do is instead of line, line represents strings.', 'start': 2426.237, 'duration': 3.623}, {'end': 2436.644, 'text': 'If you want to check for any of the other different data types, you type things like short or integer or whatever the different data types are.', 'start': 2430.02, 'duration': 6.624}, {'end': 2443.429, 'text': 'Then if we come in here and we did get a string, what I can do is say username is going to be equal to.', 'start': 2436.885, 'duration': 6.544}, {'end': 2448.313, 'text': 'And if I want to get that string that they entered, I go next line and then I can get it.', 'start': 2443.71, 'duration': 4.603}], 'summary': 'The transcript discusses data type validation and string manipulation for input processing.', 'duration': 29.281, 'max_score': 2419.032, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws42419032.jpg'}, {'end': 2562.149, 'src': 'embed', 'start': 2533.078, 'weight': 2, 'content': [{'end': 2536.642, 'text': 'Now, if you want to perform different operations based off of conditions,', 'start': 2533.078, 'duration': 3.564}, {'end': 2546.673, 'text': "you are going to use relational operators and that is just a fancy name for things you've seen before which is equal to, not equal to, greater than,", 'start': 2536.642, 'duration': 10.031}, {'end': 2549.777, 'text': 'less than, greater than or equal to, and less than or equal to.', 'start': 2546.673, 'duration': 3.104}, {'end': 2556.123, 'text': 'And then you can use multiple different comparisons using what are called logical operators.', 'start': 2550.057, 'duration': 6.066}, {'end': 2562.149, 'text': 'And those are going to be things like not, which is going to give you the opposite of whatever you give it.', 'start': 2556.663, 'duration': 5.486}], 'summary': 'Using relational and logical operators for conditional operations in programming.', 'duration': 29.071, 'max_score': 2533.078, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws42533078.jpg'}, {'end': 2833.948, 'src': 'embed', 'start': 2808.541, 'weight': 1, 'content': [{'end': 2816.745, 'text': 'or if none of those end up being true, we can come in and do default and then output on our screen hello.', 'start': 2808.541, 'duration': 8.204}, {'end': 2817.886, 'text': 'So there we go.', 'start': 2816.765, 'duration': 1.121}, {'end': 2822.85, 'text': "And if we run that, you're going to see that Bonjour comes back just as we were expecting.", 'start': 2818.266, 'duration': 4.584}, {'end': 2828.224, 'text': "All right, so there's a whole bunch of different ways of handling conditionals, and now I want to talk about looping.", 'start': 2823.001, 'duration': 5.223}, {'end': 2833.948, 'text': 'Okay, so Java, like most programming languages, is going to have a for loop,', 'start': 2828.444, 'duration': 5.504}], 'summary': 'Introduction to handling conditionals and looping in java.', 'duration': 25.407, 'max_score': 2808.541, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws42808541.jpg'}], 'start': 2373.295, 'title': 'Using user input and conditionals in java', 'summary': 'Covers using the scanner for user input, demonstrating two methods of user input, and introduces conditionals for decision making. it also covers java conditional operators and loops, including relational and logical operators, if-else statements, switch statements, for loops, while loops, do while loops, and methods.', 'chapters': [{'end': 2532.758, 'start': 2373.295, 'title': 'User input and conditionals', 'summary': 'Covers using the scanner to receive user input for different data types and demonstrates two methods of user input: using scanner and dialog boxes. it also introduces conditionals for decision making.', 'duration': 159.463, 'highlights': ['The chapter covers using the scanner to receive user input for different data types, such as strings, short, and integer, and demonstrates two methods of user input: using scanner and dialog boxes, enabling the user to input names and displaying greetings, showcasing practical examples of user input.', 'It also introduces conditionals for decision making, providing a comprehensive overview of handling user input and using conditionals for control flow in programming.']}, {'end': 3085.312, 'start': 2533.078, 'title': 'Java conditional operators and loops', 'summary': 'Covers the usage of relational operators and logical operators in java to perform different operations based on conditions, with examples of if-else statements, the or operator, the not operator, the ternary operator, the switch statement, for loops, while loops, do while loops, and methods.', 'duration': 552.234, 'highlights': ['The chapter covers the usage of relational operators and logical operators in Java to perform different operations based on conditions, with examples of if-else statements, the or operator, the not operator, the ternary operator, the switch statement, for loops, while loops, do while loops, and methods. It discusses the usage of relational and logical operators for conditional operations and provides examples of if-else statements, the or operator, the not operator, the ternary operator, and the switch statement, as well as for loops, while loops, do while loops, and methods.', 'It provides examples of if-else statements, the or operator, the not operator, the ternary operator, the switch statement, for loops, while loops, do while loops, and methods. The chapter provides examples of if-else statements, the or operator, the not operator, the ternary operator, the switch statement, for loops, while loops, do while loops, and methods.', 'It discusses the usage of relational and logical operators for conditional operations. The chapter discusses the usage of relational and logical operators for conditional operations.']}], 'duration': 712.017, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws42373295.jpg', 'highlights': ['The chapter covers using the scanner to receive user input for different data types, such as strings, short, and integer, and demonstrates two methods of user input: using scanner and dialog boxes, enabling the user to input names and displaying greetings, showcasing practical examples of user input.', 'It also introduces conditionals for decision making, providing a comprehensive overview of handling user input and using conditionals for control flow in programming.', 'The chapter covers the usage of relational operators and logical operators in Java to perform different operations based on conditions, with examples of if-else statements, the or operator, the not operator, the ternary operator, the switch statement, for loops, while loops, do while loops, and methods.']}, {'end': 3847.955, 'segs': [{'end': 3229.931, 'src': 'embed', 'start': 3197.164, 'weight': 1, 'content': [{'end': 3198.944, 'text': 'So I pass the value of 0.', 'start': 3197.164, 'duration': 1.78}, {'end': 3200.625, 'text': 'We change the value to 10.', 'start': 3198.944, 'duration': 1.681}, {'end': 3202.505, 'text': 'But it has no effect on this.', 'start': 3200.625, 'duration': 1.88}, {'end': 3205.866, 'text': 'Even though the names are the same, they are completely different variables.', 'start': 3202.865, 'duration': 3.001}, {'end': 3212.787, 'text': "Now let's say you would like to be able to provide a variable number of parameters into your function.", 'start': 3206.246, 'duration': 6.541}, {'end': 3214.328, 'text': "So we're going to handle that.", 'start': 3212.987, 'duration': 1.341}, {'end': 3216.708, 'text': 'What you would do is go public, static.', 'start': 3214.488, 'duration': 2.22}, {'end': 3218.448, 'text': 'This is going to return an integer.', 'start': 3217.008, 'duration': 1.44}, {'end': 3221.069, 'text': "And we'll create the new improved, getSum2.", 'start': 3218.768, 'duration': 2.301}, {'end': 3223.65, 'text': 'And it is going to receive integers.', 'start': 3221.889, 'duration': 1.761}, {'end': 3229.931, 'text': "However, it's going to receive an unknown number of integers and it will still be able to handle it.", 'start': 3223.79, 'duration': 6.141}], 'summary': 'Function getsum2 handles unknown number of integers.', 'duration': 32.767, 'max_score': 3197.164, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43197164.jpg'}, {'end': 3300.887, 'src': 'embed', 'start': 3267.401, 'weight': 2, 'content': [{'end': 3271.224, 'text': "So that's a nice way to be able to handle any number of variables.", 'start': 3267.401, 'duration': 3.823}, {'end': 3272.205, 'text': 'Pretty cool stuff.', 'start': 3271.364, 'duration': 0.841}, {'end': 3275.347, 'text': "Now let's say you wanted to return multiple different values.", 'start': 3272.385, 'duration': 2.962}, {'end': 3278.41, 'text': "How would you do that? Let's go and let's create it.", 'start': 3275.387, 'duration': 3.023}, {'end': 3281.512, 'text': 'Once again, public and static.', 'start': 3278.71, 'duration': 2.802}, {'end': 3289.058, 'text': "And I'm going to do getNextTo, which is going to receive a value and then return the next two values that come after it.", 'start': 3282.153, 'duration': 6.905}, {'end': 3300.887, 'text': "cell, it's going to receive an integer, and then it is going to create an integer array and that's going to store two values, int and two.", 'start': 3289.378, 'duration': 11.509}], 'summary': 'Creating a method to return the next two values after a given integer.', 'duration': 33.486, 'max_score': 3267.401, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43267401.jpg'}, {'end': 3396.772, 'src': 'embed', 'start': 3362.726, 'weight': 0, 'content': [{'end': 3366.468, 'text': "And then let's go and output each one of those different values that are in there.", 'start': 3362.726, 'duration': 3.742}, {'end': 3371.151, 'text': "And that is how we're able to return multiple values from a method.", 'start': 3366.768, 'duration': 4.383}, {'end': 3376.114, 'text': 'Another thing we can do is we can actually receive multiple values of different types.', 'start': 3371.311, 'duration': 4.803}, {'end': 3386.403, 'text': 'and how you do that is, you can create a list using object and every single thing inside of Java comes from this object, object and object class,', 'start': 3376.574, 'duration': 9.829}, {'end': 3388.625, 'text': 'whatever you want to call it, so we can work with it.', 'start': 3386.403, 'duration': 2.222}, {'end': 3396.772, 'text': "so we can say something like get random list and we can get a whole bunch of different things, and I'll create that in a second,", 'start': 3388.625, 'duration': 8.147}], 'summary': 'Demonstrating the ability to return and receive multiple values from a method in java using lists and objects.', 'duration': 34.046, 'max_score': 3362.726, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43362726.jpg'}, {'end': 3547.563, 'src': 'embed', 'start': 3521.702, 'weight': 7, 'content': [{'end': 3532.632, 'text': 'Now what we can do is down inside of main type, in something like fact 4 is equal to and then call our function so factorial and 4,', 'start': 3521.702, 'duration': 10.93}, {'end': 3534.294, 'text': 'and output that onto the screen.', 'start': 3532.632, 'duration': 1.662}, {'end': 3537.176, 'text': "And if we run it, you're going to see we get a value of 24.", 'start': 3534.774, 'duration': 2.402}, {'end': 3540.598, 'text': "And the way that works is I'm going to walk you through the whole process.", 'start': 3537.176, 'duration': 3.422}, {'end': 3547.563, 'text': 'Whenever we first enter into our function, we are going to provide it a value of 4, which is right here.', 'start': 3540.818, 'duration': 6.745}], 'summary': 'A function is called with a value of 4 and outputs 24.', 'duration': 25.861, 'max_score': 3521.702, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43521702.jpg'}, {'end': 3609.865, 'src': 'embed', 'start': 3581.03, 'weight': 5, 'content': [{'end': 3582.75, 'text': "So that's how recursive functions work.", 'start': 3581.03, 'duration': 1.72}, {'end': 3585.851, 'text': 'And that is how we would calculate factorials.', 'start': 3583.071, 'duration': 2.78}, {'end': 3591.593, 'text': "And I'm going to do a lot more with really funky functions here later on closures and such.", 'start': 3586.291, 'duration': 5.302}, {'end': 3597.034, 'text': 'But I want to give one more demonstration in which we pass an array into a method.', 'start': 3591.753, 'duration': 5.281}, {'end': 3597.974, 'text': "So let's go.", 'start': 3597.314, 'duration': 0.66}, {'end': 3601.755, 'text': 'Noms is equal to one, two and three.', 'start': 3598.174, 'duration': 3.581}, {'end': 3602.975, 'text': 'Close that off.', 'start': 3601.855, 'duration': 1.12}, {'end': 3605.636, 'text': "And then we're going to have a function.", 'start': 3603.215, 'duration': 2.421}, {'end': 3609.865, 'text': "Let's copy this again, which is going to print out a sum.", 'start': 3606.101, 'duration': 3.764}], 'summary': 'Explaining recursive functions, calculating factorials, and using arrays in methods.', 'duration': 28.835, 'max_score': 3581.03, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43581030.jpg'}, {'end': 3696.984, 'src': 'embed', 'start': 3665.978, 'weight': 8, 'content': [{'end': 3670.823, 'text': 'So sometimes it makes sense to have custom types that have a limited number of options.', 'start': 3665.978, 'duration': 4.845}, {'end': 3674.867, 'text': "So let's say and you have to put them outside of the main function when you define them.", 'start': 3671.103, 'duration': 3.764}, {'end': 3680.553, 'text': "So I'm going to go and I'm going to create a public enumerated type and I'm going to call it day.", 'start': 3674.927, 'duration': 5.626}, {'end': 3684.036, 'text': "And just to keep this brief, I'm just going to put a couple of days inside of here.", 'start': 3680.873, 'duration': 3.163}, {'end': 3687.699, 'text': "So I'm going to go Monday, Tuesday and Wednesday.", 'start': 3684.056, 'duration': 3.643}, {'end': 3688.28, 'text': 'All right.', 'start': 3687.96, 'duration': 0.32}, {'end': 3690.222, 'text': 'So there are our different days.', 'start': 3688.3, 'duration': 1.922}, {'end': 3696.984, 'text': 'days. now, down inside of main, I can actually define my day, my custom data type,', 'start': 3690.922, 'duration': 6.062}], 'summary': "Creating a public enumerated type 'day' with options monday, tuesday, and wednesday for custom data type.", 'duration': 31.006, 'max_score': 3665.978, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43665978.jpg'}, {'end': 3754.031, 'src': 'embed', 'start': 3730.295, 'weight': 6, 'content': [{'end': 3737.117, 'text': "And what you do whenever you want to try to block one of those errors is you're going to surround problematic code with a try block,", 'start': 3730.295, 'duration': 6.822}, {'end': 3737.817, 'text': 'which is what that is.', 'start': 3737.117, 'duration': 0.7}, {'end': 3746.905, 'text': 'And inside of it, we could go and do something like int and bad int is equal to and do a division by zero.', 'start': 3738.457, 'duration': 8.448}, {'end': 3751.809, 'text': 'And then if you do have that, you are going to want to catch that potential problem.', 'start': 3747.125, 'duration': 4.684}, {'end': 3754.031, 'text': 'And how you do that is with catch.', 'start': 3751.829, 'duration': 2.202}], 'summary': 'Using try and catch blocks to handle potential errors in code.', 'duration': 23.736, 'max_score': 3730.295, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43730295.jpg'}], 'start': 3085.592, 'title': 'Java methods and recursive functions', 'summary': 'Covers java method parameters and return values, including static methods, parameter passing, and returning multiple values. it also explains recursive function for factorial calculation and exception handling with try-catch blocks and finally block.', 'chapters': [{'end': 3458.314, 'start': 3085.592, 'title': 'Java method parameters and return values', 'summary': 'Explains java method parameters and return values, covering static methods, passing parameters by value, handling variable number of parameters, returning multiple values, and creating a list of different data types.', 'duration': 372.722, 'highlights': ['The chapter explains Java method parameters and return values Covers the main topic of the transcript, providing an overview of the content.', 'Methods are static and return specific data types Describes the static nature of methods and the return types, such as integer, and demonstrates the addition of values.', 'Passing parameters by value Explains passing parameters by value, where changes in the method do not affect variables outside of the method.', 'Handling a variable number of parameters in a method Demonstrates handling a variable number of parameters by creating a method that receives an unknown number of integers and processes them using an array.', 'Returning multiple values from a method Illustrates the process of returning multiple values from a method by creating an integer array to store and return two values.', 'Creating a list of different data types Shows how to create a list of different data types using the Object class, and demonstrates the creation of a list containing string and integer values.']}, {'end': 3847.955, 'start': 3458.314, 'title': 'Recursive function for factorial calculation and exception handling', 'summary': 'Explains the implementation of a recursive function to calculate factorials, providing a detailed walkthrough of the process, and also delves into exception handling with try-catch blocks and finally block, demonstrating how to handle potential errors and clean up after the code execution.', 'duration': 389.641, 'highlights': ['The chapter explains the implementation of a recursive function to calculate factorials, providing a detailed walkthrough of the process, and also delves into exception handling with try-catch blocks and finally block, demonstrating how to handle potential errors and clean up after the code execution. The chapter provides a detailed explanation of implementing a recursive function to calculate factorials, demonstrating the process with a specific example, and also covers exception handling using try-catch blocks and finally block to handle potential errors and perform cleanup after code execution.', 'The function for calculating factorials is demonstrated, with an example of finding the factorial of 4, resulting in a value of 24. A demonstration of calculating the factorial of 4 is provided, resulting in a value of 24, showcasing the functionality of the recursive function.', 'The process of handling potential errors with exception handling using try-catch blocks is explained, along with a demonstration of catching a specific arithmetic exception and providing a custom error message. The chapter explains the process of handling potential errors using exception handling with try-catch blocks, including catching a specific arithmetic exception and providing a custom error message for it.', "The concept of enumerated types is briefly introduced, showcasing the creation of a custom type 'day' with limited options and implementing it in the main function. A brief introduction to enumerated types is provided, demonstrating the creation of a custom type 'day' with limited options and its implementation in the main function."]}], 'duration': 762.363, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43085592.jpg', 'highlights': ['Covers java method parameters and return values, including static methods, parameter passing, and returning multiple values.', 'Demonstrates handling a variable number of parameters in a method.', 'Illustrates the process of returning multiple values from a method by creating an integer array to store and return two values.', 'Explains passing parameters by value, where changes in the method do not affect variables outside of the method.', 'Shows how to create a list of different data types using the Object class, and demonstrates the creation of a list containing string and integer values.', 'The chapter provides a detailed explanation of implementing a recursive function to calculate factorials, demonstrating the process with a specific example.', 'Explains the process of handling potential errors using exception handling with try-catch blocks, including catching a specific arithmetic exception and providing a custom error message for it.', 'A demonstration of calculating the factorial of 4 is provided, resulting in a value of 24, showcasing the functionality of the recursive function.', "A brief introduction to enumerated types is provided, demonstrating the creation of a custom type 'day' with limited options and its implementation in the main function."]}, {'end': 5600.768, 'segs': [{'end': 3901.863, 'src': 'embed', 'start': 3870.754, 'weight': 0, 'content': [{'end': 3873.817, 'text': 'Alright. so brief overview of exception handling.', 'start': 3870.754, 'duration': 3.063}, {'end': 3880.563, 'text': "and now, since Java is an object-oriented programming language, let's do some cool object-oriented programming examples.", 'start': 3873.817, 'duration': 6.746}, {'end': 3884.527, 'text': 'Alright, so now what I want to do is talk about object-oriented programming.', 'start': 3880.863, 'duration': 3.664}, {'end': 3890.052, 'text': "So what we're going to do is we're going to come over here and we're going to create warriors that are going to fight to the death.", 'start': 3884.567, 'duration': 5.485}, {'end': 3892.214, 'text': 'So the first thing I want to do is create a class.', 'start': 3890.312, 'duration': 1.902}, {'end': 3896.838, 'text': 'And I am going to not have a main function inside of it.', 'start': 3892.914, 'duration': 3.924}, {'end': 3901.863, 'text': "And the name of my class is going to be Warrior because that is what I'm trying to model.", 'start': 3897.039, 'duration': 4.824}], 'summary': 'Overview of exception handling and object-oriented programming with java, including creating warrior classes for modeling.', 'duration': 31.109, 'max_score': 3870.754, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43870754.jpg'}, {'end': 5011.55, 'src': 'embed', 'start': 4982.313, 'weight': 1, 'content': [{'end': 4984.654, 'text': 'So Loki is kind of a sneaky little guy.', 'start': 4982.313, 'duration': 2.341}, {'end': 4987.956, 'text': "So why don't we go in and let's give him more capability.", 'start': 4984.714, 'duration': 3.242}, {'end': 4993.099, 'text': "And how we're going to do that is by creating a subclass that is called Dodge Warrior.", 'start': 4988.136, 'duration': 4.963}, {'end': 4996.521, 'text': "So we're going to come over here and we're going to create Dodge Warrior.", 'start': 4993.379, 'duration': 3.142}, {'end': 4999.743, 'text': 'So just this right click and class.', 'start': 4996.621, 'duration': 3.122}, {'end': 5005.306, 'text': 'And this is going to be a Dodge Warrior, which is going to give Loki the ability to dodge.', 'start': 5000.363, 'duration': 4.943}, {'end': 5008.388, 'text': "So we'll just go Dodge Warrior and no main again.", 'start': 5005.587, 'duration': 2.801}, {'end': 5009.669, 'text': "And let's click on Finish.", 'start': 5008.568, 'duration': 1.101}, {'end': 5011.55, 'text': "And let's add some capabilities.", 'start': 5010.109, 'duration': 1.441}], 'summary': 'Creating a dodge warrior subclass to give loki the ability to dodge, adding more capabilities.', 'duration': 29.237, 'max_score': 4982.313, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws44982313.jpg'}, {'end': 5332.995, 'src': 'heatmap', 'start': 5240.149, 'weight': 0.729, 'content': [{'end': 5243.65, 'text': "So we're going to say that Loki has a 25% chance of dodging.", 'start': 5240.149, 'duration': 3.501}, {'end': 5248.132, 'text': "Let's see if we gave Loki enough abilities to be able to survive an attack with Thor.", 'start': 5243.73, 'duration': 4.402}, {'end': 5249.113, 'text': 'And here we go.', 'start': 5248.432, 'duration': 0.681}, {'end': 5251.093, 'text': 'And you can see Loki dodged the attack.', 'start': 5249.133, 'duration': 1.96}, {'end': 5254.015, 'text': 'So there it is being used and is being quite useful.', 'start': 5251.153, 'duration': 2.862}, {'end': 5259.737, 'text': 'Well, as you can see, even though we gave Loki the ability to dodge, he still was killed by Thor.', 'start': 5254.195, 'duration': 5.542}, {'end': 5270.069, 'text': 'So what can we do if we want to go and give an object a capability that is not already inside of the warrior class, for example?', 'start': 5260.037, 'duration': 10.032}, {'end': 5271.871, 'text': 'One thing you do is use an interface.', 'start': 5270.149, 'duration': 1.722}, {'end': 5280, 'text': 'Now, basically, interfaces are empty classes and they define the methods you must use, but none of the code.', 'start': 5272.131, 'duration': 7.869}, {'end': 5287.445, 'text': "And classes can only inherit one class, as we've seen so far when we subclassed Warrior into creating the Dodge Warrior.", 'start': 5280.38, 'duration': 7.065}, {'end': 5290.187, 'text': 'But they can inherit numerous interfaces.', 'start': 5287.605, 'duration': 2.582}, {'end': 5296.871, 'text': "And what we're going to do is we'll use an interface to define whether a Warrior can or can't teleport.", 'start': 5290.407, 'duration': 6.464}, {'end': 5302.715, 'text': "And we will add this capability without making many changes to the classes that we're trying to affect.", 'start': 5297.271, 'duration': 5.444}, {'end': 5306.959, 'text': 'And how we would do this is creating an interface called teleports.', 'start': 5302.995, 'duration': 3.964}, {'end': 5312.284, 'text': "So we'll come in and go to source and new and we will create an interface this time.", 'start': 5307.219, 'duration': 5.065}, {'end': 5317.148, 'text': "And we'll come in here and the interface name is going to be teleports.", 'start': 5312.684, 'duration': 4.464}, {'end': 5321.112, 'text': "So we'll give Loki the ability to teleport away to save himself.", 'start': 5317.409, 'duration': 3.703}, {'end': 5321.732, 'text': 'All right,', 'start': 5321.292, 'duration': 0.44}, {'end': 5332.995, 'text': "so there is our interface and all we're going to do is we're going to say that it is going to receive or it is going to return a string and teleport is going to be this guy.", 'start': 5321.732, 'duration': 11.263}], 'summary': 'Loki gains 25% dodge chance, but still killed by thor. introduces interface to give teleportation capability.', 'duration': 92.846, 'max_score': 5240.149, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45240149.jpg'}, {'end': 5287.445, 'src': 'embed', 'start': 5260.037, 'weight': 2, 'content': [{'end': 5270.069, 'text': 'So what can we do if we want to go and give an object a capability that is not already inside of the warrior class, for example?', 'start': 5260.037, 'duration': 10.032}, {'end': 5271.871, 'text': 'One thing you do is use an interface.', 'start': 5270.149, 'duration': 1.722}, {'end': 5280, 'text': 'Now, basically, interfaces are empty classes and they define the methods you must use, but none of the code.', 'start': 5272.131, 'duration': 7.869}, {'end': 5287.445, 'text': "And classes can only inherit one class, as we've seen so far when we subclassed Warrior into creating the Dodge Warrior.", 'start': 5280.38, 'duration': 7.065}], 'summary': 'Use interfaces to give objects additional capabilities, such as defining methods without code, allowing classes to inherit one class.', 'duration': 27.408, 'max_score': 5260.037, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45260037.jpg'}, {'end': 5412.39, 'src': 'embed', 'start': 5386.192, 'weight': 3, 'content': [{'end': 5393.397, 'text': "we'll put teleport inside of here and we'll say return and we'll say fails at teleporting,", 'start': 5386.192, 'duration': 7.205}, {'end': 5398.68, 'text': 'And this is going to allow us to add capabilities to those classes without really changing much, which is awesome.', 'start': 5393.797, 'duration': 4.883}, {'end': 5404.524, 'text': "So what do we need to change here to get this to work? Well, inside of Warrior, I'm actually going to add a couple of different things.", 'start': 5398.921, 'duration': 5.603}, {'end': 5412.39, 'text': "But basically, if I want to add in the ability to teleport, what I'm going to do here is use what is called an instance variable, that is,", 'start': 5404.805, 'duration': 7.585}], 'summary': 'Using instance variables to add teleportation capability to classes.', 'duration': 26.198, 'max_score': 5386.192, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45386192.jpg'}, {'end': 5494.001, 'src': 'heatmap', 'start': 5404.805, 'weight': 0.759, 'content': [{'end': 5412.39, 'text': "But basically, if I want to add in the ability to teleport, what I'm going to do here is use what is called an instance variable, that is,", 'start': 5404.805, 'duration': 7.585}, {'end': 5414.771, 'text': 'a subclass of the teleports interface.', 'start': 5412.39, 'duration': 2.381}, {'end': 5421.176, 'text': 'And what this is going to allow me to do is at runtime, subclasses are going to be able to define whether they can teleport or not.', 'start': 5414.992, 'duration': 6.184}, {'end': 5425.057, 'text': 'So all I need to do code wise is go public teleports.', 'start': 5421.616, 'duration': 3.441}, {'end': 5428.318, 'text': "I don't need to extend this or do anything with the interface.", 'start': 5425.117, 'duration': 3.201}, {'end': 5433.239, 'text': "And I'm going to say teleport type, which is going to be whether they have the ability to teleport or not.", 'start': 5428.598, 'duration': 4.641}, {'end': 5435.14, 'text': "And that's all I needed to add there.", 'start': 5433.639, 'duration': 1.501}, {'end': 5439.981, 'text': "And then at the bottom of this, I'm going to add in our different capability.", 'start': 5435.36, 'duration': 4.621}, {'end': 5448.123, 'text': 'So which is going to be handling the teleporting ability and also allowing them to dynamically change the teleporting capability.', 'start': 5440.141, 'duration': 7.982}, {'end': 5450.435, 'text': 'very little code is being used here,', 'start': 5448.713, 'duration': 1.722}, {'end': 5462.708, 'text': 'so all I need to do is go string teleport and then I can go return teleport type and call the teleporting function inside of there and then,', 'start': 5450.435, 'duration': 12.273}, {'end': 5474.796, 'text': 'if I want to dynamically allow them to change it, I can say public void set teleport Ability and teleports new teleport.', 'start': 5462.708, 'duration': 12.088}, {'end': 5477.677, 'text': 'And this is all composition, like I said previously.', 'start': 5474.816, 'duration': 2.861}, {'end': 5483.738, 'text': "And then I'll show you a more easy to understand way of using interfaces.", 'start': 5477.697, 'duration': 6.041}, {'end': 5486.999, 'text': 'And new teleport type.', 'start': 5483.758, 'duration': 3.241}, {'end': 5489.039, 'text': 'And that will allow them to change that.', 'start': 5487.239, 'duration': 1.8}, {'end': 5494.001, 'text': 'And this should be teleports and new teleport type.', 'start': 5489.319, 'duration': 4.682}], 'summary': 'Adding teleporting ability using instance variables and interfaces with minimal code', 'duration': 89.196, 'max_score': 5404.805, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45404805.jpg'}], 'start': 3847.955, 'title': 'Warrior class and combat', 'summary': 'Covers exception handling, object-oriented programming, creating a warrior class with abilities, handling attack information, and adding teleportation capability using interfaces, with a focus on real-world simulations and practical applications.', 'chapters': [{'end': 4223.72, 'start': 3847.955, 'title': 'Exception handling and object-oriented programming', 'summary': "Covers exception handling in java and then delves into object-oriented programming, explaining the creation of a warrior class with attributes and methods, including the use of getters and setters for encapsulation and initializing the warrior's capabilities.", 'duration': 375.765, 'highlights': ["The chapter covers exception handling in Java and then delves into object-oriented programming, explaining the creation of a Warrior class with attributes and methods, including the use of getters and setters for encapsulation and initializing the warrior's capabilities.", 'In object-oriented programming, attributes are stored in fields and capabilities are modeled using methods, such as creating a Warrior class with protected and public attributes like name, health, attack amount, and block amount.', "The use of constructors in Java to initialize a Warrior object with attributes such as name, health, attack maximum amount, and block maximum amount, as well as the concept of using 'this' for referencing an object without a name.", 'The explanation of getters and setters for encapsulation in object-oriented programming, including providing special output and input validation, as well as setting and returning attributes like name, health, attack maximum amount, and block maximum amount for a Warrior object.']}, {'end': 4498.483, 'start': 4223.72, 'title': 'Creating a warrior battle system', 'summary': 'Covers the creation of a warrior class with abilities to attack and block, as well as the development of a battle utility class to simulate battles between warriors, emphasizing the use of static methods and fields for utility classes and the simulation of real-world scenarios.', 'duration': 274.763, 'highlights': ['Creation of warrior class and abilities The tutorial covers the creation of a warrior class with the abilities to attack and block, including attributes such as name, health, attack amount, and block amount.', 'Development of battle utility class The chapter also involves the development of a battle utility class to simulate battles between warriors, emphasizing the use of static methods and fields for utility classes and the simulation of real-world scenarios.', 'Simulation of battles between warriors The creation of methods to simulate battles between warriors, including functions to provide attack results and deduct damage based on attack and block amounts, aiming to simulate real-world scenarios and utility class functionality.']}, {'end': 5259.737, 'start': 4498.563, 'title': 'Handling attack information and warrior combat', 'summary': 'Details the process of handling attack information and conducting warrior combat using the printf function, a warrior game class, and a dodge warrior subclass, concluding with the demonstration of a warrior successfully dodging an attack.', 'duration': 761.174, 'highlights': ['The chapter details the process of handling attack information and conducting warrior combat. It explains using the printf function to format output, creating a warrior game class to facilitate combat, and introducing a Dodge Warrior subclass with the ability to dodge attacks.', 'The chapter demonstrates the use of the printf function for formatted output. It explains using %s for strings, %d for integers, and the flexibility of printf for various data types and formatting, enhancing the visual appeal of the output.', 'The chapter introduces a Dodge Warrior subclass with the ability to dodge attacks. It explains the addition of a Dodge Warrior subclass with the capability to randomly dodge attacks, impacting the outcome of warrior combat scenarios.']}, {'end': 5600.768, 'start': 5260.037, 'title': 'Adding teleport capability to warrior class', 'summary': 'Demonstrates adding the capability of teleportation to the warrior class using interfaces, allowing for dynamic changes and minimal code, and proposes a homework assignment for implementing teleporting ability in the dodge warrior class.', 'duration': 340.731, 'highlights': ['Interfaces are used to define the methods for adding new capabilities to the Warrior class without making many changes, allowing for the inheritance of multiple interfaces. Interfaces are empty classes defining methods for adding capabilities; classes can inherit multiple interfaces.', 'Demonstration of using composition and implementing the teleports interface to define teleportation capability, with the ability to dynamically change the teleporting capability at runtime. Composition is used to implement the teleports interface for defining teleportation capability; dynamic change of teleporting capability at runtime is demonstrated.', 'The addition of teleportation capability is achieved with minimal code changes, using instance variables and composition, enabling the Warrior class to dynamically define teleportation abilities. Minimal code changes using instance variables and composition to dynamically define teleportation abilities in the Warrior class.']}], 'duration': 1752.813, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws43847955.jpg', 'highlights': ["The chapter covers exception handling in Java and then delves into object-oriented programming, explaining the creation of a Warrior class with attributes and methods, including the use of getters and setters for encapsulation and initializing the warrior's capabilities.", 'The chapter introduces a Dodge Warrior subclass with the ability to dodge attacks. It explains the addition of a Dodge Warrior subclass with the capability to randomly dodge attacks, impacting the outcome of warrior combat scenarios.', 'Interfaces are used to define the methods for adding new capabilities to the Warrior class without making many changes, allowing for the inheritance of multiple interfaces. Interfaces are empty classes defining methods for adding capabilities; classes can inherit multiple interfaces.', 'The addition of teleportation capability is achieved with minimal code changes, using instance variables and composition, enabling the Warrior class to dynamically define teleportation abilities.']}, {'end': 6227.34, 'segs': [{'end': 5629.448, 'src': 'embed', 'start': 5601.029, 'weight': 0, 'content': [{'end': 5606.373, 'text': 'Now if you wanted to see, and this can be additional homework, a more traditional type of interface.', 'start': 5601.029, 'duration': 5.344}, {'end': 5616.38, 'text': 'Here is a pizza interface and you can see how we were able to implement pizza and then come in and add in the description as well as the cost.', 'start': 5606.553, 'duration': 9.827}, {'end': 5619.943, 'text': 'So that would be a more traditional interface in the way that they are used.', 'start': 5616.6, 'duration': 3.343}, {'end': 5623.145, 'text': 'You can go and make that on your own and test that out for homework.', 'start': 5619.983, 'duration': 3.162}, {'end': 5629.448, 'text': 'And then you also have things called abstract classes and crashables here being used as an example.', 'start': 5623.405, 'duration': 6.043}], 'summary': 'Demonstrated traditional interface for pizza with description and cost. mentioned abstract classes and crashables.', 'duration': 28.419, 'max_score': 5601.029, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45601029.jpg'}, {'end': 5791.864, 'src': 'embed', 'start': 5762.924, 'weight': 1, 'content': [{'end': 5766.367, 'text': "So if I want to create an integer stream, I'm going to use int stream.", 'start': 5762.924, 'duration': 3.443}, {'end': 5773.692, 'text': 'Range closed is going to generate a list from the starting point 1 through the ending point, which is going to be 10.', 'start': 5766.787, 'duration': 6.905}, {'end': 5779.156, 'text': "Boxed is going to return a list that's boxed to an integer.", 'start': 5773.692, 'duration': 5.464}, {'end': 5782.958, 'text': 'Collect is going to process the list elements into a container.', 'start': 5779.336, 'duration': 3.622}, {'end': 5786.1, 'text': 'And that container is going to be a list container.', 'start': 5783.238, 'duration': 2.862}, {'end': 5787.201, 'text': 'And I can come in here.', 'start': 5786.321, 'duration': 0.88}, {'end': 5789.082, 'text': 'And that is range closed.', 'start': 5787.561, 'duration': 1.521}, {'end': 5791.864, 'text': "And then I need to get my collector's class.", 'start': 5789.343, 'duration': 2.521}], 'summary': 'Using int stream, range closed generates a list from 1 to 10, boxed to integer, and collected into a list container.', 'duration': 28.94, 'max_score': 5762.924, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45762924.jpg'}, {'end': 5838.214, 'src': 'embed', 'start': 5816.645, 'weight': 2, 'content': [{'end': 5835.853, 'text': "and what map does is it's going to take each one of those values inside of the list that I provide for it and in this situation I'm going to multiply them towards each other and then save them into a list again and then collect and I need to collectors and once again turn them back into a list.", 'start': 5816.645, 'duration': 19.208}, {'end': 5838.214, 'text': 'so there we are and then close that off.', 'start': 5835.853, 'duration': 2.361}], 'summary': 'Using map to multiply values in a list and collect the results.', 'duration': 21.569, 'max_score': 5816.645, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45816645.jpg'}, {'end': 5927.115, 'src': 'embed', 'start': 5895.76, 'weight': 3, 'content': [{'end': 5901.704, 'text': 'Well, then I know that it is a even value, so I want to put it into my list.', 'start': 5895.76, 'duration': 5.944}, {'end': 5906.348, 'text': 'So collectors and then once again to list and a semicolon.', 'start': 5902.005, 'duration': 4.343}, {'end': 5911.653, 'text': 'Now, what we can do is go in the cycle and print that out once again, except this is evens, of course.', 'start': 5906.528, 'duration': 5.125}, {'end': 5914.095, 'text': 'And now you can see we just kept the even values.', 'start': 5912.053, 'duration': 2.042}, {'end': 5916.036, 'text': "So that's the difference between map and filter.", 'start': 5914.115, 'duration': 1.921}, {'end': 5927.115, 'text': "Now, let's say that we would want to go and limit our stream So, LengthStream and I'm going to call this Limit to 5 is going to be equal to.", 'start': 5916.317, 'duration': 10.798}], 'summary': 'Demonstrating the use of map and filter functions to extract even values from a list, showing the difference between the two. also, exploring limiting a stream to 5 elements.', 'duration': 31.355, 'max_score': 5895.76, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45895760.jpg'}, {'end': 5985.53, 'src': 'embed', 'start': 5937.724, 'weight': 4, 'content': [{'end': 5942.569, 'text': 'You can use Limit with any of these other little guys if you just want to limit the amount of output that you get.', 'start': 5937.724, 'duration': 4.845}, {'end': 5948.614, 'text': 'And we can also go and get this InchStream we have and instead go for each.', 'start': 5942.949, 'duration': 5.665}, {'end': 5954.256, 'text': 'and list what we want to use for output, which in this situation would be println.', 'start': 5949.174, 'duration': 5.082}, {'end': 5957.937, 'text': 'And there you can see we just got five values even though ten were generated.', 'start': 5954.416, 'duration': 3.521}, {'end': 5966.58, 'text': 'We can also use reduce to multiply all the values in a list or perform an operation over and over again on each of these guys.', 'start': 5958.157, 'duration': 8.423}, {'end': 5973.984, 'text': "So in stream and range and let's go 1 to 5 and then call reduce on it.", 'start': 5967.06, 'duration': 6.924}, {'end': 5977.286, 'text': "And we're going to start off with value of 1.", 'start': 5974.524, 'duration': 2.762}, {'end': 5983.509, 'text': "And then we're going to take each value thereafter and multiply those values times each other.", 'start': 5977.286, 'duration': 6.223}, {'end': 5985.53, 'text': 'And you just go X and Y.', 'start': 5983.929, 'duration': 1.601}], 'summary': 'Using limit, inchstream, reduce for data processing, e.g. limiting output to 5 values instead of 10.', 'duration': 47.806, 'max_score': 5937.724, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45937724.jpg'}, {'end': 6077.162, 'src': 'heatmap', 'start': 5991.392, 'weight': 0.788, 'content': [{'end': 5993.413, 'text': 'And then we can come in here and output that.', 'start': 5991.392, 'duration': 2.021}, {'end': 5996.715, 'text': 'And you can see whenever we go and multiply them all times each other.', 'start': 5993.693, 'duration': 3.022}, {'end': 5998.095, 'text': 'Very, very powerful tool.', 'start': 5996.915, 'duration': 1.18}, {'end': 6004.018, 'text': "You'd also be able to go and get an int stream and convert it into a double stream.", 'start': 5998.195, 'duration': 5.823}, {'end': 6015.38, 'text': "So int stream and let's go and generate one through five and then use map to double and you just take one from one list and put it into the other list.", 'start': 6004.557, 'duration': 10.823}, {'end': 6018.922, 'text': "Another thing that's very useful is we can generate different statistics.", 'start': 6015.661, 'duration': 3.261}, {'end': 6022.483, 'text': "So I'm going to go, Create int summary statistics.", 'start': 6019.182, 'duration': 3.301}, {'end': 6030.545, 'text': "And I'm going to call this istats is equal to int stream and generate a range 1 through 10.", 'start': 6022.923, 'duration': 7.622}, {'end': 6032.866, 'text': 'And then summary statistics.', 'start': 6030.545, 'duration': 2.321}, {'end': 6035.146, 'text': "And you'll see what we'll be able to use this for.", 'start': 6033.426, 'duration': 1.72}, {'end': 6042.328, 'text': 'We can come in and get a average by going istats followed by get average.', 'start': 6035.166, 'duration': 7.162}, {'end': 6044.149, 'text': "We're going to be able to sum them.", 'start': 6042.729, 'duration': 1.42}, {'end': 6050.073, 'text': 'Just putting getSum inside of there, getMinimum, and also getMaximum.', 'start': 6044.948, 'duration': 5.125}, {'end': 6052.014, 'text': 'And there you can see our answers.', 'start': 6050.393, 'duration': 1.621}, {'end': 6058.66, 'text': 'Alright, so a very quick run through of how we can use streams and map and filter and reduce.', 'start': 6052.114, 'duration': 6.546}, {'end': 6063.384, 'text': "I'm going to do a little bit more with those as the tutorial continues, but now I want to talk about regular expressions.", 'start': 6058.68, 'duration': 4.704}, {'end': 6069.419, 'text': 'Now lambda expressions are basically functions that can be passed as if they are objects.', 'start': 6064.198, 'duration': 5.221}, {'end': 6072.24, 'text': 'So what I want to do is I want to create a list here.', 'start': 6069.479, 'duration': 2.761}, {'end': 6077.162, 'text': 'This is an array list, just as I created them whenever I was talking about streams and such.', 'start': 6072.36, 'duration': 4.802}], 'summary': 'Using streams and map to manipulate data, generate statistics, and apply lambda expressions for functional programming.', 'duration': 85.77, 'max_score': 5991.392, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45991392.jpg'}, {'end': 6030.545, 'src': 'embed', 'start': 6004.557, 'weight': 5, 'content': [{'end': 6015.38, 'text': "So int stream and let's go and generate one through five and then use map to double and you just take one from one list and put it into the other list.", 'start': 6004.557, 'duration': 10.823}, {'end': 6018.922, 'text': "Another thing that's very useful is we can generate different statistics.", 'start': 6015.661, 'duration': 3.261}, {'end': 6022.483, 'text': "So I'm going to go, Create int summary statistics.", 'start': 6019.182, 'duration': 3.301}, {'end': 6030.545, 'text': "And I'm going to call this istats is equal to int stream and generate a range 1 through 10.", 'start': 6022.923, 'duration': 7.622}], 'summary': "Using java's intstream to generate and manipulate data, and calculate summary statistics.", 'duration': 25.988, 'max_score': 6004.557, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46004557.jpg'}, {'end': 6170.254, 'src': 'embed', 'start': 6141.725, 'weight': 7, 'content': [{'end': 6144.267, 'text': 'And there you can see that I only printed out the even values.', 'start': 6141.725, 'duration': 2.542}, {'end': 6149.69, 'text': 'All right, so pretty understandable, especially if you saw the part with streams and maps and filters and so forth.', 'start': 6144.647, 'duration': 5.043}, {'end': 6150.831, 'text': "So let's do something really cool.", 'start': 6149.71, 'duration': 1.121}, {'end': 6152.412, 'text': "Let's generate Fibonacci numbers.", 'start': 6150.851, 'duration': 1.561}, {'end': 6162.79, 'text': "I'm going to create a list, an integer list, and I am going to call it fib equal to new and linked list.", 'start': 6153.286, 'duration': 9.504}, {'end': 6165.011, 'text': 'And this guy is going to perform magic.', 'start': 6163.331, 'duration': 1.68}, {'end': 6165.752, 'text': 'All right.', 'start': 6165.292, 'duration': 0.46}, {'end': 6170.254, 'text': 'So to generate Fibonacci numbers, I am going to create a stream.', 'start': 6165.792, 'duration': 4.462}], 'summary': 'Demonstrated printing even values and generating fibonacci numbers using streams.', 'duration': 28.529, 'max_score': 6141.725, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46141725.jpg'}], 'start': 5601.029, 'title': 'Object-oriented programming and java streams', 'summary': 'Provides an overview of object-oriented programming, emphasizing the use of interfaces and abstract classes. it also offers a comprehensive overview of java streams, covering operations like map, filter, reduce, and statistics, along with demonstrations of lambda expressions and their applications, including the generation of fibonacci numbers.', 'chapters': [{'end': 5666.193, 'start': 5601.029, 'title': 'Object-oriented programming overview', 'summary': 'Provides an overview of object-oriented programming, covering traditional interfaces for implementing pizza descriptions and costs, as well as abstract classes and their similarities and differences with interfaces. it also emphasizes the importance of interfaces and abstract classes in object-oriented programming.', 'duration': 65.164, 'highlights': ['The chapter emphasizes the importance of interfaces and abstract classes in object-oriented programming, providing an overview of traditional interfaces for implementing pizza descriptions and costs, as well as abstract classes and their similarities and differences with interfaces.', 'Interfaces are highlighted as a more traditional type of interface, utilized for implementing pizza descriptions and costs, while abstract classes are explained as being used when not all methods need to be implemented and there is a need to provide the option for methods to have code.', "The example of a 'crashable' class with code inside is used to illustrate the concept that abstract classes are suitable for methods with code, while interfaces are ideal for methods without any implementation.", 'The chapter encourages practical application by suggesting creating a traditional interface for a pizza and testing it out as homework, providing a hands-on approach to understanding the concepts.']}, {'end': 6227.34, 'start': 5666.453, 'title': 'Java streams and operations overview', 'summary': 'Provides a comprehensive overview of java streams, including demonstrations of creating and manipulating streams, applying aggregate operations such as map, filter, and reduce, and generating statistics. the tutorial also covers lambda expressions and showcases their use for performing operations on elements of a list, as well as the generation of fibonacci numbers using streams.', 'duration': 560.887, 'highlights': ['Demonstrating the creation and manipulation of Java streams, including using int stream to generate a list from 1 to 10 and then boxing the integers to return a list. Introduces the concept of Java streams and demonstrates the creation of a list using int stream to generate integers from 1 to 10, followed by boxing the integers to return a list container.', 'Explaining the usage of map to perform operations on each value in a list and demonstrating the multiplication of values and their collection into a new list. Illustrates the usage of map to perform operations on each value in a list, showcasing the multiplication of values and their collection into a new list using collectors.', 'Implementing the filter function to eliminate values based on a condition, specifically keeping even values in a list. Demonstrates the application of the filter function to eliminate values based on a condition, specifically showcasing the retention of even values in a list.', 'Showcasing the use of limit to restrict the output of a stream, as well as the application of reduce to perform operations on values in a list. Illustrates the use of limit to restrict the output of a stream and demonstrates the application of reduce to perform operations on values in a list, showcasing the multiplication of values and their collection into a new list using collectors.', 'Demonstrating the conversion of an int stream into a double stream and the generation of statistics such as average, sum, minimum, and maximum. Illustrates the conversion of an int stream into a double stream and the generation of statistics such as average, sum, minimum, and maximum using summary statistics.', 'Exploring the usage of lambda expressions for performing operations on elements of a list, including multiplying each value by 2 and filtering even values. Explores the usage of lambda expressions for performing operations on elements of a list, showcasing the multiplication of each value by 2 and the filtering of even values.', 'Showcasing the creation of Fibonacci numbers using streams, including the iteration, limitation, mapping, and collection of the results into a list. Demonstrates the creation of Fibonacci numbers using streams, including the iteration, limitation, mapping, and collection of the results into a list using collectors.']}], 'duration': 626.311, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws45601029.jpg', 'highlights': ['The chapter emphasizes the importance of interfaces and abstract classes in object-oriented programming, providing an overview of traditional interfaces for implementing pizza descriptions and costs, as well as abstract classes and their similarities and differences with interfaces.', 'Demonstrating the creation and manipulation of Java streams, including using int stream to generate a list from 1 to 10 and then boxing the integers to return a list.', 'Explaining the usage of map to perform operations on each value in a list and demonstrating the multiplication of values and their collection into a new list.', 'Implementing the filter function to eliminate values based on a condition, specifically keeping even values in a list.', 'Showcasing the use of limit to restrict the output of a stream, as well as the application of reduce to perform operations on values in a list.', 'Demonstrating the conversion of an int stream into a double stream and the generation of statistics such as average, sum, minimum, and maximum.', 'Exploring the usage of lambda expressions for performing operations on elements of a list, including multiplying each value by 2 and filtering even values.', 'Showcasing the creation of Fibonacci numbers using streams, including the iteration, limitation, mapping, and collection of the results into a list.']}, {'end': 7082.794, 'segs': [{'end': 6460.516, 'src': 'embed', 'start': 6432.011, 'weight': 1, 'content': [{'end': 6436.534, 'text': "So I'm going to write to a file and then I'm going to go in and read from a file.", 'start': 6432.011, 'duration': 4.523}, {'end': 6441.879, 'text': "And if you're wondering what I'm using here, I am actually using the Java IO libraries.", 'start': 6436.755, 'duration': 5.124}, {'end': 6448.546, 'text': "So inside of print writer, I will then have, let's go to the next line, new buffered.", 'start': 6442.188, 'duration': 6.358}, {'end': 6454.091, 'text': "And basically, what print writer does is it formats the data that you're going to be writing,", 'start': 6449.288, 'duration': 4.803}, {'end': 6460.516, 'text': 'while the buffered writer is going to save data until it is time to write, so that it writes it all at once,', 'start': 6454.091, 'duration': 6.425}], 'summary': 'Using java io libraries for writing and reading files, including print writer for formatting and buffered writer for saving data until writing.', 'duration': 28.505, 'max_score': 6432.011, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46432011.jpg'}, {'end': 6556.14, 'src': 'embed', 'start': 6528.362, 'weight': 3, 'content': [{'end': 6531.863, 'text': "So, you can also, you don't need to stack these like this.", 'start': 6528.362, 'duration': 3.501}, {'end': 6533.163, 'text': "Some people like it, some people don't.", 'start': 6531.903, 'duration': 1.26}, {'end': 6534.504, 'text': "I'm going to show you the other way of doing it.", 'start': 6533.183, 'duration': 1.321}, {'end': 6535.924, 'text': 'So, this is a buffered reader.', 'start': 6534.564, 'duration': 1.36}, {'end': 6538.526, 'text': 'And it reads data one line at a time.', 'start': 6536.564, 'duration': 1.962}, {'end': 6542.849, 'text': "So let's just call this BR is equal to new buffered reader.", 'start': 6538.706, 'duration': 4.143}, {'end': 6546.252, 'text': 'And inside of here we can say new file reader.', 'start': 6543.15, 'duration': 3.102}, {'end': 6549.535, 'text': "And the specific file that we're going to be reading from.", 'start': 6546.793, 'duration': 2.742}, {'end': 6554.599, 'text': "Once again I'm going to go and get the Java IO buffered reader library.", 'start': 6549.935, 'duration': 4.664}, {'end': 6556.14, 'text': "That's where I'm pulling information from.", 'start': 6554.619, 'duration': 1.521}], 'summary': 'Demonstrating an alternative method using a buffered reader to read data line by line from a specific file in java io.', 'duration': 27.778, 'max_score': 6528.362, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46528362.jpg'}, {'end': 6637.109, 'src': 'embed', 'start': 6609.413, 'weight': 0, 'content': [{'end': 6612.095, 'text': "Now let's talk about how to write binary data.", 'start': 6609.413, 'duration': 2.682}, {'end': 6616.697, 'text': "All right, so we'll create another file and let's call this F3.", 'start': 6612.355, 'duration': 4.342}, {'end': 6622.22, 'text': "None of that changes in regards to text versus binary data that you're going to be writing.", 'start': 6617.137, 'duration': 5.083}, {'end': 6625.602, 'text': "All right, so we have our file created and we're working with files.", 'start': 6622.62, 'duration': 2.982}, {'end': 6629.644, 'text': 'And another thing we need is file output stream.', 'start': 6626.282, 'duration': 3.362}, {'end': 6631.485, 'text': "Let's call this FOS.", 'start': 6629.944, 'duration': 1.541}, {'end': 6637.109, 'text': 'And this is just going to connect to the file to write our raw bytes of information.', 'start': 6631.865, 'duration': 5.244}], 'summary': 'Demonstrating writing binary data using file output stream.', 'duration': 27.696, 'max_score': 6609.413, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46609413.jpg'}, {'end': 6776.307, 'src': 'embed', 'start': 6747.091, 'weight': 7, 'content': [{'end': 6753.497, 'text': "Again, we're going to use a try block and let's go and get this catch right here so that everything works.", 'start': 6747.091, 'duration': 6.406}, {'end': 6755.258, 'text': 'paste that inside of there.', 'start': 6753.877, 'duration': 1.381}, {'end': 6756.078, 'text': "now we'll go.", 'start': 6755.258, 'duration': 0.82}, {'end': 6765.662, 'text': 'file input stream is going to be equal to, and initialize this file input stream and pass in the file we want to work with.', 'start': 6756.078, 'duration': 9.584}, {'end': 6769.564, 'text': 'we want to add buffering once again buffered input stream.', 'start': 6765.662, 'duration': 3.902}, {'end': 6776.307, 'text': 'i can just come in here and just change this to a star just to get rid of that hassle.', 'start': 6769.564, 'duration': 6.743}], 'summary': 'Using try block, initializing file input stream, adding buffering for improved performance.', 'duration': 29.216, 'max_score': 6747.091, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46747091.jpg'}, {'end': 6863.114, 'src': 'embed', 'start': 6834.954, 'weight': 5, 'content': [{'end': 6842.42, 'text': "so there's a whole bunch of things in regards to working with files and directories and reading and writing multiple different types of data in Java.", 'start': 6834.954, 'duration': 7.466}, {'end': 6844.021, 'text': 'Now I want to talk about generics.', 'start': 6842.44, 'duration': 1.581}, {'end': 6851.306, 'text': 'All right, so generics basically allow you to use any type, any object type and perform an operation on it.', 'start': 6844.381, 'duration': 6.925}, {'end': 6854.548, 'text': "So let's go and I'm going to create two different, completely different types.", 'start': 6851.446, 'duration': 3.102}, {'end': 6863.114, 'text': "This is going to be a string array and let's go and define that and let's have it be one and two just to keep it simple.", 'start': 6854.568, 'duration': 8.546}], 'summary': 'In java, working with files, directories, reading and writing data, and using generics to perform operations on any object type.', 'duration': 28.16, 'max_score': 6834.954, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46834954.jpg'}], 'start': 6227.52, 'title': 'Fileio in java and generics', 'summary': 'Covers working with files and directories, creating, renaming, and deleting files, reading and writing text and binary data, using java io libraries, and handling potential errors while performing file operations. it also includes an introduction to generics, demonstrating how it allows performing operations on any type of data and creating generic classes.', 'chapters': [{'end': 6724.198, 'start': 6227.52, 'title': 'Fileio in java', 'summary': 'Covers working with files and directories, creating, renaming, and deleting files, reading and writing text and binary data, using java io libraries, and handling potential errors while performing file operations.', 'duration': 496.678, 'highlights': ['The chapter covers working with files and directories, creating, renaming, and deleting files, reading and writing text and binary data. It includes instructions on how to work with files and directories, create, rename, and delete files, and read and write both text and binary data.', 'Using Java IO libraries for file operations and potentially handling errors while performing file operations. The usage of Java IO libraries for file operations and handling potential errors while performing file operations is emphasized.', 'Demonstrating how to write text to a file using print writer and buffered writer to format and save data. The process of writing text to a file using print writer and buffered writer to format and save data is detailed.', 'Instruction on reading text from a file using buffered reader and closing the file after reading. The procedure for reading text from a file using buffered reader and closing the file after reading is explained.', 'Explanation on writing binary data to a file using file output stream, buffered output stream, and data output stream. The explanation of writing binary data to a file using file output stream, buffered output stream, and data output stream is provided.']}, {'end': 7082.794, 'start': 6724.558, 'title': 'Working with files, directories & generics in java', 'summary': 'Covers working with files and directories, reading and writing different data types in java as well as an introduction to generics, demonstrating how it allows performing operations on any type of data and creating generic classes.', 'duration': 358.236, 'highlights': ['Demonstrating the use of generics in Java The chapter covers the concept of generics in Java, showcasing the ability to perform operations on different types of data and creating generic classes.', 'Working with files and directories in Java The transcript discusses working with files and directories, emphasizing reading and writing various data types in Java, showcasing the use of data input stream and buffered input stream.', 'Utilizing try block and catch for error handling The usage of try block and catch for error handling is demonstrated throughout the transcript, ensuring the proper functioning of the code.']}], 'duration': 855.274, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws46227520.jpg', 'highlights': ['Covers working with files and directories, creating, renaming, and deleting files, reading and writing text and binary data.', 'Using Java IO libraries for file operations and potentially handling errors while performing file operations.', 'Demonstrating how to write text to a file using print writer and buffered writer to format and save data.', 'Instruction on reading text from a file using buffered reader and closing the file after reading.', 'Explanation on writing binary data to a file using file output stream, buffered output stream, and data output stream.', 'Demonstrating the use of generics in Java, showcasing the ability to perform operations on different types of data and creating generic classes.', 'Working with files and directories in Java, emphasizing reading and writing various data types, showcasing the use of data input stream and buffered input stream.', 'Utilizing try block and catch for error handling throughout the transcript, ensuring the proper functioning of the code.']}, {'end': 8322.579, 'segs': [{'end': 7106.074, 'src': 'embed', 'start': 7082.794, 'weight': 1, 'content': [{'end': 7092.199, 'text': "we can just change this to dog or whatever we'd like, and then this is going to be let's make this my gs for string and we don't even have to change.", 'start': 7082.794, 'duration': 9.405}, {'end': 7092.859, 'text': 'get value.', 'start': 7092.199, 'duration': 0.66}, {'end': 7098.662, 'text': "that'll still work, and if we do that, you're going to see we're able to work with both data types in our generic class.", 'start': 7092.859, 'duration': 5.803}, {'end': 7100.124, 'text': 'So there you go.', 'start': 7099.122, 'duration': 1.002}, {'end': 7102.668, 'text': 'rundown of how to work with generics.', 'start': 7100.124, 'duration': 2.544}, {'end': 7106.074, 'text': "And I think I taught you enough that you can do pretty much anything else you'd like to do with them.", 'start': 7102.708, 'duration': 3.366}], 'summary': 'The transcript explains working with generics, allowing for flexibility in data types.', 'duration': 23.28, 'max_score': 7082.794, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws47082794.jpg'}, {'end': 7366.45, 'src': 'embed', 'start': 7314.98, 'weight': 0, 'content': [{'end': 7324.185, 'text': 'And then inside of our try block, we can join this to the first thread and then try to run our third thread.', 'start': 7314.98, 'duration': 9.205}, {'end': 7332.97, 'text': 'And you can see in this situation that the third thread does not start execution until after the first thread has actually ended.', 'start': 7324.365, 'duration': 8.605}, {'end': 7335.652, 'text': 'So another thing we can do and we can do more.', 'start': 7333.27, 'duration': 2.382}, {'end': 7339.274, 'text': "There's more ways of locking things up here so that the threads behave themselves.", 'start': 7335.692, 'duration': 3.582}, {'end': 7348.559, 'text': "Let's say we would like to simulate a bank account that is only going to allow one customer at a time to go in and withdraw money.", 'start': 7339.574, 'duration': 8.985}, {'end': 7360.045, 'text': "So let's create a customer class, call it name, and let's go and just provide the customer's name just for tracking purposes mainly here.", 'start': 7348.679, 'duration': 11.366}, {'end': 7363.668, 'text': 'and this name is going to be whatever the name is, you pass in.', 'start': 7360.505, 'duration': 3.163}, {'end': 7366.45, 'text': "okay, so we got that customer that's created.", 'start': 7363.668, 'duration': 2.782}], 'summary': 'Demonstrating thread synchronization and simulating bank account transactions.', 'duration': 51.47, 'max_score': 7314.98, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws47314980.jpg'}, {'end': 7419.133, 'src': 'embed', 'start': 7391.015, 'weight': 3, 'content': [{'end': 7394.738, 'text': "So static and we're going to have a customer.", 'start': 7391.015, 'duration': 3.723}, {'end': 7395.399, 'text': 'All right.', 'start': 7394.758, 'duration': 0.641}, {'end': 7402.163, 'text': "So what are we going to be able to do here? This is basically how you're going to set up a singleton so that there is only ever one bank account.", 'start': 7395.439, 'duration': 6.724}, {'end': 7406.706, 'text': "What we're going to do is go public static bank account.", 'start': 7402.423, 'duration': 4.283}, {'end': 7410.969, 'text': "It's going to return a bank account even though it is inside of a bank account.", 'start': 7406.846, 'duration': 4.123}, {'end': 7419.133, 'text': "So what we're going to do is we're going to say get bank account is what's going to be called to create new bank account objects.", 'start': 7411.269, 'duration': 7.864}], 'summary': 'This tutorial explains how to set up a singleton bank account class in java.', 'duration': 28.118, 'max_score': 7391.015, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws47391015.jpg'}, {'end': 7499.335, 'src': 'embed', 'start': 7474.765, 'weight': 4, 'content': [{'end': 7482.811, 'text': "because that's the whole purpose of this is to make sure we don't overdraw accounts by having multiple customers go in and withdrawing large amounts at the same time.", 'start': 7474.765, 'duration': 8.046}, {'end': 7484.552, 'text': "So that's going to return our balance.", 'start': 7483.051, 'duration': 1.501}, {'end': 7490.333, 'text': "And then what this guy's going to do is actually withdraw money from the account.", 'start': 7484.952, 'duration': 5.381}, {'end': 7499.335, 'text': 'And if you want to protect it so that only one thread can ever execute this code at a time, you put Synchronized inside of there.', 'start': 7490.613, 'duration': 8.722}], 'summary': 'To prevent overdrawing, synchronize withdrawal code for account protection.', 'duration': 24.57, 'max_score': 7474.765, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws47474765.jpg'}, {'end': 7865.749, 'src': 'embed', 'start': 7837.993, 'weight': 8, 'content': [{'end': 7848.659, 'text': "But I'm specifically using MySQL 5.7, not the newest version, 5.8, or like Oracle likes to call it, MySQL 8.", 'start': 7837.993, 'duration': 10.666}, {'end': 7852.562, 'text': "I'm doing that only because of security issues and so forth.", 'start': 7848.659, 'duration': 3.903}, {'end': 7857.425, 'text': "Use 5.7, especially if you're a beginner with databases and Java and so forth.", 'start': 7852.862, 'duration': 4.563}, {'end': 7860.866, 'text': "It'll save you a ton of time and you're not giving up on anything.", 'start': 7857.705, 'duration': 3.161}, {'end': 7863.047, 'text': "So I'm using 5.7.", 'start': 7861.006, 'duration': 2.041}, {'end': 7865.749, 'text': 'Then what I have here on the screen is everything.', 'start': 7863.047, 'duration': 2.702}], 'summary': 'Use mysql 5.7 for beginners to save time and for security.', 'duration': 27.756, 'max_score': 7837.993, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws47837993.jpg'}, {'end': 8287.553, 'src': 'embed', 'start': 8257.428, 'weight': 10, 'content': [{'end': 8260.148, 'text': 'Now we need to close our connection to our database.', 'start': 8257.428, 'duration': 2.72}, {'end': 8264.431, 'text': 'And then we need to catch any issues that we have.', 'start': 8260.529, 'duration': 3.902}, {'end': 8277.537, 'text': 'And the potential issues are class not found exception and the other exception that we could have is going to be an SQL exception if there was something wrong with our query.', 'start': 8264.79, 'duration': 12.747}, {'end': 8281.589, 'text': "And I think everything there looks like it's working really well.", 'start': 8277.826, 'duration': 3.763}, {'end': 8282.809, 'text': "Let's run it and see if it works.", 'start': 8281.709, 'duration': 1.1}, {'end': 8283.991, 'text': 'Oops, got an error.', 'start': 8283.09, 'duration': 0.901}, {'end': 8287.553, 'text': "What's the error? And it says on line 28 is where I have my problem.", 'start': 8284.011, 'duration': 3.542}], 'summary': 'Troubleshooting database connection with potential exceptions; encountered an error on line 28.', 'duration': 30.125, 'max_score': 8257.428, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws48257428.jpg'}], 'start': 7082.794, 'title': 'Java generics, threads, singleton implementation, and mysql database setup', 'summary': 'Covers working with generics, creating and running multiple threads, implementing a bank account singleton pattern, protecting account balance, and setting up a mysql database for java including downloading mysql 5.7, initializing, inserting information, and resolving potential issues.', 'chapters': [{'end': 7339.274, 'start': 7082.794, 'title': 'Working with generics and threads', 'summary': 'Covers working with generics and threads, including how to work with both data types in a generic class and creating and running multiple threads in java, highlighting the use of active thread count, starting and ending threads, and synchronizing thread execution.', 'duration': 256.48, 'highlights': ['Creating and running multiple threads in Java, including starting and ending threads and using active thread count, enabling the execution of multiple blocks of code concurrently.', 'Working with both data types in a generic class, showcasing the flexibility of generics in Java and their ability to handle different data types seamlessly.', 'Synchronizing thread execution by using the join method, allowing one thread to wait for another to finish before starting its own execution.']}, {'end': 7618.794, 'start': 7339.574, 'title': 'Bank account singleton implementation', 'summary': 'Demonstrates the implementation of a bank account class with a singleton pattern, ensuring only one customer can withdraw money at a time, and includes the protection of the account balance to prevent overdrawn accounts.', 'duration': 279.22, 'highlights': ['The chapter demonstrates the implementation of a bank account class with a singleton pattern It shows how to create a bank account class with a singleton pattern, ensuring only one object is created for the class.', 'ensuring only one customer can withdraw money at a time The implementation ensures that only one customer can withdraw money at a time to prevent conflicts and overdrawn accounts.', 'protection of the account balance to prevent overdrawn accounts The code includes protection measures to prevent overdrawn accounts by checking the balance before allowing withdrawals.']}, {'end': 7802.346, 'start': 7618.814, 'title': 'Threadtest for bank account', 'summary': 'Explains the implementation of threadtest for bank accounts, with customers trying to withdraw money and the system protecting the account from being overdrawn, showing that the account is protected from multiple withdrawals and overdrawn situations.', 'duration': 183.532, 'highlights': ['The chapter explains the implementation of ThreadTest for bank accounts, with customers trying to withdraw money and the system protecting the account from being overdrawn, showing that the account is protected from multiple withdrawals and overdrawn situations.', 'The code demonstrates the creation of ThreadTest to simulate customers attempting to withdraw money from a bank account, with each customer trying to withdraw $10 at a time, and the system protecting the account from being overdrawn.', 'The transcript details the setup of the constructor for ThreadTest, where a customer object is received and assigned, and the run function cycles through getting accounts, attempting to take money out, and sleeping as it runs through the process.']}, {'end': 8322.579, 'start': 7802.554, 'title': 'Setting up mysql database for java', 'summary': 'Covers the process of setting up a mysql database for java, including downloading mysql 5.7, creating a new database, initializing, inserting information, granting privileges, accessing the database, and resolving potential issues.', 'duration': 520.025, 'highlights': ['The tutorial covers the process of setting up a MySQL database for Java, including downloading MySQL 5.7, creating a new database, initializing, inserting information, granting privileges, and accessing the database. The tutorial provides guidance on setting up MySQL 5.7, creating a new database, initializing and inserting information, granting privileges, and accessing the database for Java.', 'Emphasis on using MySQL 5.7 for beginners due to security issues and compatibility with Java, providing a link for the necessary files and step-by-step instructions for setting up and accessing the database. The instructor recommends using MySQL 5.7 for beginners due to security issues and compatibility with Java, and provides step-by-step instructions and necessary links for setting up and accessing the database.', 'Demonstration of accessing the database and resolving potential issues, such as resolving errors and closing the database connection, with practical troubleshooting examples. The tutorial demonstrates how to access the database, resolve errors, and close the database connection, with practical troubleshooting examples.']}], 'duration': 1239.785, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/n-xAqcBCws4/pics/n-xAqcBCws47082794.jpg', 'highlights': ['Enabling concurrent execution of multiple blocks of code using multiple threads', 'Showcasing the flexibility of generics in Java to handle different data types seamlessly', 'Synchronizing thread execution using the join method to ensure orderly execution', 'Implementing a bank account class with a singleton pattern to ensure only one object is created', 'Ensuring only one customer can withdraw money at a time to prevent conflicts and overdrawn accounts', 'Including protection measures to prevent overdrawn accounts by checking the balance before allowing withdrawals', 'Demonstrating the protection of the account from multiple withdrawals and overdrawn situations', 'Simulating customers attempting to withdraw money from a bank account and protecting the account from being overdrawn', 'Providing guidance on setting up MySQL 5.7, creating a new database, initializing and inserting information, granting privileges, and accessing the database for Java', 'Recommending the use of MySQL 5.7 for beginners due to security issues and compatibility with Java', 'Demonstrating how to access the database, resolve errors, and close the database connection with practical troubleshooting examples']}], 'highlights': ['The video tutorial covers a comprehensive Java tutorial crammed into one video, providing a 1000 page book equivalent of content (quantifiable data).', 'A table of contents is available for easy navigation throughout the video, enhancing user experience (quantifiable data).', 'The Eclipse IDE is recommended for the tutorial due to its free availability and consistent functionality across platforms (quantifiable data).', 'Code and a transcript of the entire video are provided in the description, ensuring accessibility and reference for viewers (quantifiable data).', 'The chapter covers using the scanner to receive user input for different data types, such as strings, short, and integer, and demonstrates two methods of user input: using scanner and dialog boxes, enabling the user to input names and displaying greetings, showcasing practical examples of user input.', 'Covers java method parameters and return values, including static methods, parameter passing, and returning multiple values.', "The chapter covers exception handling in Java and then delves into object-oriented programming, explaining the creation of a Warrior class with attributes and methods, including the use of getters and setters for encapsulation and initializing the warrior's capabilities.", 'Demonstrating the creation and manipulation of Java streams, including using int stream to generate a list from 1 to 10 and then boxing the integers to return a list.', 'Covers working with files and directories, creating, renaming, and deleting files, reading and writing text and binary data.', 'Enabling concurrent execution of multiple blocks of code using multiple threads', 'Implementing a bank account class with a singleton pattern to ensure only one object is created', 'Providing guidance on setting up MySQL 5.7, creating a new database, initializing and inserting information, granting privileges, and accessing the database for Java']}