title
Java Programming

description
MY UDEMY COURSES ARE 87.5% OFF TIL December 19th ($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_41 ➡️ C++ Programming Bootcamp Series for $9.99 : Over 23 Hrs + 53 Videos + Quizzes + Graded Assignments + New Videos Every Month https://bit.ly/C_Course_41 ➡️ FREE 15 hour Golang Course!!! : https://bit.ly/go-tutorial3 Cheat Sheet is Here : http://goo.gl/OPMjte Subscribe to Me: http://bit.ly/2FWQZTx Slower Java Tutorial : http://goo.gl/UHdlyP How to Install Java & Eclipse : http://goo.gl/vEEEJE Best Java Book : http://amzn.to/2l27h2h In this Java programming Tutorial I'll teach you all of the core knowledge needed to write Java code in 30 minutes. This is the most popular request from everyone. I specifically cover the following topics: primitive data types, comments, class, import, Scanner, final, Strings, static, private, protected, public, constructors, math, hasNextLine, nextLine, getters, setters, method overloading, Random, casting, toString, conversion from Strings to primitives, converting from primitives to Strings, if, else, else if, print, println, printf, logical operators, comparison operators, ternary operator, switch, for, while, break, continue, do while, polymorphism, arrays, for each, multidimensional arrays and more. *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 Like the channel? Consider becoming a Patreon! Check it out here: ►► https://www.patreon.com/derekbanas

detail
{'title': 'Java Programming', 'heatmap': [{'end': 126.804, 'start': 102.398, 'weight': 1}, {'end': 375.219, 'start': 330.797, 'weight': 0.813}], 'summary': "'java programming' includes comprehensive tutorials on java concepts, basics, method overloading, logical operators, loops, and polymorphism, covering topics such as data types, inheritance, random number generation, logical operators, comparison, loops, conditions, and arrays in java, providing a solid foundation for learners.", 'chapters': [{'end': 409.111, 'segs': [{'end': 133.15, 'src': 'heatmap', 'start': 83.304, 'weight': 1, 'content': [{'end': 85.365, 'text': 'and there you go over and over and over again.', 'start': 83.304, 'duration': 2.061}, {'end': 86.786, 'text': 'So, single line, multi-line.', 'start': 85.445, 'duration': 1.341}, {'end': 96.053, 'text': 'If you want to import libraries, which you will do all of the time in Java, you can either go java.util.scanner, which accepts user input,', 'start': 86.986, 'duration': 9.067}, {'end': 100.876, 'text': 'or you can go and import the entire library by going java.util.scanner.', 'start': 96.053, 'duration': 4.823}, {'end': 102.198, 'text': 'Star There you are.', 'start': 101.196, 'duration': 1.002}, {'end': 104.961, 'text': "Now we're going to create what is called a field.", 'start': 102.398, 'duration': 2.563}, {'end': 107.084, 'text': "And I'm just going to start off with a complicated one.", 'start': 105.222, 'duration': 1.862}, {'end': 110.288, 'text': 'Okay, so public means that this is available to anyone else.', 'start': 107.164, 'duration': 3.124}, {'end': 116.356, 'text': 'Static means that this number is going to be shared by every animal object that is created.', 'start': 110.649, 'duration': 5.707}, {'end': 120.519, 'text': "Final means that this is a constant and it can't be changed.", 'start': 116.736, 'duration': 3.783}, {'end': 126.804, 'text': 'Double means that this is a variable type that allows you to enter decimal places.', 'start': 120.8, 'duration': 6.004}, {'end': 133.15, 'text': "And it's common to have finals defined with all uppercase letters.", 'start': 127.265, 'duration': 5.885}], 'summary': 'Java tutorial covers importing libraries and creating fields with specific attributes like public, static, final, and double.', 'duration': 49.846, 'max_score': 83.304, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP083304.jpg'}, {'end': 189.186, 'src': 'embed', 'start': 164.755, 'weight': 0, 'content': [{'end': 170.659, 'text': "A string is just a string of characters and I'm gonna go through all the different data types that are inside of Java.", 'start': 164.755, 'duration': 5.904}, {'end': 181.163, 'text': 'Private An int is just an integer that can have a value of negative 2 to the power of 31, 2, 2 to the power of 31 minus 1.', 'start': 170.8, 'duration': 10.363}, {'end': 182.264, 'text': 'So, pretty big number.', 'start': 181.163, 'duration': 1.101}, {'end': 184.845, 'text': "Well, what I'm doing here is I'm defining an animal.", 'start': 182.364, 'duration': 2.481}, {'end': 185.985, 'text': 'So it has a name.', 'start': 185.005, 'duration': 0.98}, {'end': 188.006, 'text': 'Every animal that I create is going to have a name.', 'start': 186.045, 'duration': 1.961}, {'end': 189.186, 'text': 'These are attributes.', 'start': 188.166, 'duration': 1.02}], 'summary': 'An overview of java data types, including the int type with a range of -2^31 to 2^31-1.', 'duration': 24.431, 'max_score': 164.755, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0164755.jpg'}, {'end': 335.759, 'src': 'embed', 'start': 306.752, 'weight': 3, 'content': [{'end': 310.377, 'text': 'Every single animal object is going to share the same value for a number of animals.', 'start': 306.752, 'duration': 3.625}, {'end': 314.422, 'text': 'And basically, you want to mark any variable or function static.', 'start': 310.617, 'duration': 3.805}, {'end': 319.467, 'text': "if it doesn't make sense for an object to have that thing on its own.", 'start': 314.742, 'duration': 4.725}, {'end': 324.972, 'text': "So, for example, it wouldn't make sense for a dog to know the total number of animal objects created.", 'start': 319.627, 'duration': 5.345}, {'end': 328.535, 'text': "If it doesn't make sense for the real world, it doesn't make sense here, make it static.", 'start': 325.312, 'duration': 3.223}, {'end': 330.797, 'text': "And we're going to give that default value of 0.", 'start': 328.735, 'duration': 2.062}, {'end': 335.759, 'text': 'A scanner is going to allow us to accept user input from the keyboard.', 'start': 330.797, 'duration': 4.962}], 'summary': 'Static variables are used to share values across all instances of a class, such as the total number of animal objects created, which is marked as static and given a default value of 0.', 'duration': 29.007, 'max_score': 306.752, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0306752.jpg'}, {'end': 375.219, 'src': 'heatmap', 'start': 330.797, 'weight': 0.813, 'content': [{'end': 335.759, 'text': 'A scanner is going to allow us to accept user input from the keyboard.', 'start': 330.797, 'duration': 4.962}, {'end': 337.799, 'text': "And I'm going to just call this user input.", 'start': 335.999, 'duration': 1.8}, {'end': 339.76, 'text': "And I'm creating a scanner object.", 'start': 338.139, 'duration': 1.621}, {'end': 342.201, 'text': 'And you normally do it this way, equals new scanner.', 'start': 339.8, 'duration': 2.401}, {'end': 347.022, 'text': "And then here, by putting system in, you're saying we want to get data from the keyboard.", 'start': 342.401, 'duration': 4.621}, {'end': 353.406, 'text': 'Now anytime an animal object is created, you need a function that is called a constructor to be executed.', 'start': 347.202, 'duration': 6.204}, {'end': 354.987, 'text': "Here I'm just going to right click.", 'start': 353.526, 'duration': 1.461}, {'end': 358.789, 'text': "I'm going to go source and I'm going to come down here and then generate constructor.", 'start': 355.167, 'duration': 3.622}, {'end': 359.409, 'text': 'There it is.', 'start': 358.929, 'duration': 0.48}, {'end': 361.651, 'text': "And here I'm just going to put it after user input.", 'start': 359.69, 'duration': 1.961}, {'end': 366.834, 'text': "And I've decided that I don't necessarily want this to be created with all of these different data types.", 'start': 361.931, 'duration': 4.903}, {'end': 368.615, 'text': "So I'm just uncheck that instead.", 'start': 366.974, 'duration': 1.641}, {'end': 369.375, 'text': 'And there you go.', 'start': 368.815, 'duration': 0.56}, {'end': 370.896, 'text': 'There is your constructor.', 'start': 369.455, 'duration': 1.441}, {'end': 375.219, 'text': 'Super calls whatever the super class was for this animal.', 'start': 371.036, 'duration': 4.183}], 'summary': 'Creating a scanner object for user input and generating a constructor for an animal object.', 'duration': 44.422, 'max_score': 330.797, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0330797.jpg'}, {'end': 409.111, 'src': 'embed', 'start': 386.503, 'weight': 4, 'content': [{'end': 396.106, 'text': 'okay? so this is now a subclass of the type animal and of course, cat is going to extend animal as well, and this is what we call inheritance,', 'start': 386.503, 'duration': 9.603}, {'end': 405.589, 'text': 'because every single field and every single method that is in animal is going to be available to the subclasses dog and cat, since it extends it,', 'start': 396.106, 'duration': 9.483}, {'end': 406.59, 'text': "and that's inheritance.", 'start': 405.589, 'duration': 1.001}, {'end': 409.111, 'text': "Now I don't want to call the super for this,", 'start': 406.97, 'duration': 2.141}], 'summary': "Subclass 'cat' extends 'animal' through inheritance.", 'duration': 22.608, 'max_score': 386.503, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0386503.jpg'}], 'start': 0.089, 'title': 'Java programming concepts', 'summary': 'Provides a comprehensive java programming tutorial, including creating classes for animals, defining fields, and data types, emphasizing the importance of private fields and defining attributes for objects. it also covers the introduction of various data types in java such as byte, long, double, and integer, along with the concept of static variables and inheritance in classes.', 'chapters': [{'end': 206.211, 'start': 0.089, 'title': 'Java programming tutorial', 'summary': 'Provides a java programming tutorial, creating classes for animals, defining fields and data types in java, and emphasizes the importance of private fields. it also covers the process of defining attributes for objects and importing libraries.', 'duration': 206.122, 'highlights': ['The chapter provides a Java programming tutorial, creating classes for animals, defining fields and data types in Java, and emphasizes the importance of private fields. Creating classes for animals, defining fields and data types in Java, importance of private fields in Java programming.', 'It also covers the process of defining attributes for objects and importing libraries. Defining attributes for objects, importing libraries in Java programming.']}, {'end': 409.111, 'start': 206.391, 'title': 'Java class variables and constructors', 'summary': 'Covers the introduction of various data types in java, including byte, long, double, and integer, along with the concept of static variables and inheritance in classes.', 'duration': 202.72, 'highlights': ['The chapter introduces various data types in Java, such as byte, long, double, and integer, with their respective ranges and usage scenarios. It explains the range and usage of byte, long, double, and integer data types in Java.', 'It discusses the concept of static variables and their usage in Java classes, emphasizing the importance of marking a variable static when it does not make sense for an object to have that property on its own. Emphasizes the importance of marking a variable static when it does not make sense for an object to have that property on its own.', 'The chapter explains the concept of inheritance in Java classes, where subclasses inherit fields and methods from their superclass, exemplified by the extension of dog and cat classes from the animal superclass. Explains the concept of inheritance in Java classes, demonstrated by the extension of dog and cat classes from the animal superclass.']}], 'duration': 409.022, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP089.jpg', 'highlights': ['The chapter provides a Java programming tutorial, creating classes for animals, defining fields and data types in Java, and emphasizes the importance of private fields.', 'It also covers the process of defining attributes for objects and importing libraries in Java programming.', 'The chapter introduces various data types in Java, such as byte, long, double, and integer, with their respective ranges and usage scenarios.', 'It discusses the concept of static variables and their usage in Java classes, emphasizing the importance of marking a variable static when it does not make sense for an object to have that property on its own.', 'The chapter explains the concept of inheritance in Java classes, where subclasses inherit fields and methods from their superclass, exemplified by the extension of dog and cat classes from the animal superclass.']}, {'end': 747.459, 'segs': [{'end': 447.105, 'src': 'embed', 'start': 409.111, 'weight': 0, 'content': [{'end': 415.313, 'text': 'because I have no reason to and whenever we enter the animal constructor that means we just created a new animal.', 'start': 409.111, 'duration': 6.202}, {'end': 418.875, 'text': "so I'm gonna say number of animals needs to be increased by one.", 'start': 415.313, 'duration': 3.562}, {'end': 425.897, 'text': "so I'm gonna put two pluses on there and that would just be exactly the same as if I typed in number of animals equals number of animals plus one.", 'start': 418.875, 'duration': 7.022}, {'end': 427.118, 'text': "it's just shorthand notation.", 'start': 425.897, 'duration': 1.221}, {'end': 430.559, 'text': "Now let's say that I want to come in here and add some things.", 'start': 427.318, 'duration': 3.241}, {'end': 432.96, 'text': 'So equal to 5 plus 1.', 'start': 430.819, 'duration': 2.141}, {'end': 433.9, 'text': 'This is how we add.', 'start': 432.96, 'duration': 0.94}, {'end': 435.481, 'text': 'Exactly the same as you would think.', 'start': 434.12, 'duration': 1.361}, {'end': 440.463, 'text': 'And if you want to print out, shorthand inside of Eclipse is type sysout, hold down control, hit space.', 'start': 435.921, 'duration': 4.542}, {'end': 444.224, 'text': "You're going to use system out print line any time you want to print something to the screen.", 'start': 440.563, 'duration': 3.661}, {'end': 447.105, 'text': "And here we're going to go 5 plus 1 equals.", 'start': 444.424, 'duration': 2.681}], 'summary': 'Demonstrates shorthand notation for increasing animal count and adding numbers in eclipse.', 'duration': 37.994, 'max_score': 409.111, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0409111.jpg'}, {'end': 530.695, 'src': 'embed', 'start': 503.984, 'weight': 2, 'content': [{'end': 507.727, 'text': 'again, you understand these public static void main string arguments.', 'start': 503.984, 'duration': 3.743}, {'end': 515.616, 'text': "If you run this on the command line, you're going to be able to provide arguments or values that are going to be stored inside of this array.", 'start': 508.047, 'duration': 7.569}, {'end': 517.438, 'text': "And I'll get more into what arrays are later.", 'start': 515.777, 'duration': 1.661}, {'end': 518.881, 'text': "They're just basically boxes.", 'start': 517.458, 'duration': 1.423}, {'end': 524.629, 'text': "Okay, so if I want to execute this, I'm going to go animal and I'm just going to call this the animal is equal to,", 'start': 518.9, 'duration': 5.729}, {'end': 526.211, 'text': "and I'm going to create a new animal object.", 'start': 524.629, 'duration': 1.582}, {'end': 528.033, 'text': 'And I just go like that.', 'start': 526.511, 'duration': 1.522}, {'end': 530.695, 'text': 'And this guy right here is actually our constructor.', 'start': 528.473, 'duration': 2.222}], 'summary': 'Introduction to java programming, creating and using arrays and objects.', 'duration': 26.711, 'max_score': 503.984, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0503984.jpg'}, {'end': 644.019, 'src': 'embed', 'start': 616.084, 'weight': 1, 'content': [{'end': 623.466, 'text': "This is a way for us to refer to the object that is being created, because there's no other way to do that.", 'start': 616.084, 'duration': 7.382}, {'end': 630.147, 'text': 'So this is a reference to the object that was created, this guy right down here, so that we can execute the proper things.', 'start': 623.526, 'duration': 6.621}, {'end': 634.951, 'text': "And we're going to go set name and we're going to get the user input that they just entered.", 'start': 630.467, 'duration': 4.484}, {'end': 637.213, 'text': 'And to do that, you go next line.', 'start': 635.171, 'duration': 2.042}, {'end': 644.019, 'text': "Now, depending upon the type of data you are accepting, you're going to use a different value for here and a different value for here.", 'start': 637.373, 'duration': 6.646}], 'summary': 'Creating object reference for executing operations with user input.', 'duration': 27.935, 'max_score': 616.084, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0616084.jpg'}], 'start': 409.111, 'title': 'Java programming basics', 'summary': 'Covers the basics of java programming including object creation, math functions, print vs. println, if statements, user input validation, getters and setters, and data type validation, providing a comprehensive overview of fundamental java concepts.', 'chapters': [{'end': 518.881, 'start': 409.111, 'title': 'Java basics: operators and shorthand notation', 'summary': 'Covers the basics of using shorthand notation for incrementing variables, as well as performing arithmetic operations and utilizing the system out print line function to display results in java. it also demonstrates the usage of main function for executing the code.', 'duration': 109.77, 'highlights': ["The shorthand notation for incrementing a variable in Java using '++' adds one to the current value, which is equivalent to the expression 'number of animals equals number of animals plus one'.", "The system out print line function in Eclipse is used for displaying output on the screen, and it allows concatenating strings and values using the '+' operator, as demonstrated with the example '5 plus 1 equals sum of numbers'.", "The chapter also explains performing arithmetic operations in Java, such as addition, subtraction, multiplication, division, and modulus, with corresponding symbols like '+', '-', '*', '/', and '%'.", "The main function in Java is the entry point for code execution and is denoted by 'public static void main(String[] args)', where 'args' is an array for storing command line arguments."]}, {'end': 747.459, 'start': 518.9, 'title': 'Java programming basics', 'summary': 'Covers the basics of java programming, including object creation, math functions, print vs. println, if statements, user input validation, getters and setters, and data type validation, providing a comprehensive overview of fundamental java concepts.', 'duration': 228.559, 'highlights': ['The chapter covers the basics of Java programming, including object creation, math functions, print vs. println, if statements, user input validation, getters and setters, and data type validation.', 'User input validation is demonstrated using hasNextLine to check for string input and execute actions based on the condition.', "Getters and setters are generated to access private variables, except for 'number of animals' which is handled by the constructor, and 'user input' which is static and not related to the object.", 'Different data types, including strings, integers, floats, doubles, booleans, and bytes, are validated using specific methods like nextInt, nextFloat, etc., ensuring the correct data type is entered.', 'The process of creating objects, setting their attributes, and validating user input is explained in detail, providing a foundation for understanding Java programming concepts.']}], 'duration': 338.348, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0409111.jpg', 'highlights': ['The chapter covers the basics of Java programming, including object creation, math functions, print vs. println, if statements, user input validation, getters and setters, and data type validation.', 'The process of creating objects, setting their attributes, and validating user input is explained in detail, providing a foundation for understanding Java programming concepts.', "The main function in Java is the entry point for code execution and is denoted by 'public static void main(String[] args)', where 'args' is an array for storing command line arguments.", "The shorthand notation for incrementing a variable in Java using '++' adds one to the current value, which is equivalent to the expression 'number of animals equals number of animals plus one'.", "The system out print line function in Eclipse is used for displaying output on the screen, and it allows concatenating strings and values using the '+' operator, as demonstrated with the example '5 plus 1 equals sum of numbers'."]}, {'end': 1107.253, 'segs': [{'end': 807.563, 'src': 'embed', 'start': 778.809, 'weight': 0, 'content': [{'end': 784.592, 'text': 'So if you have multiple different versions of this function, However, the attributes or the data it accepts are different.', 'start': 778.809, 'duration': 5.783}, {'end': 785.552, 'text': 'You can do that.', 'start': 784.772, 'duration': 0.78}, {'end': 788.494, 'text': "You can have the same function name and it doesn't cause any problem.", 'start': 785.692, 'duration': 2.802}, {'end': 792.477, 'text': "So let's go down inside of unique ID and create that guy.", 'start': 788.614, 'duration': 3.863}, {'end': 794.898, 'text': 'And here you can see it right here to method overload.', 'start': 792.617, 'duration': 2.281}, {'end': 796.379, 'text': 'All you do is use the same name.', 'start': 795.178, 'duration': 1.201}, {'end': 798.18, 'text': 'Boom And you just change the attributes.', 'start': 796.539, 'duration': 1.641}, {'end': 802.801, 'text': "You can never have the same attributes inside of there, or at least the data types can't be the same.", 'start': 798.32, 'duration': 4.481}, {'end': 807.563, 'text': "So you couldn't go in here and type in long, you know, unique ID.", 'start': 802.981, 'duration': 4.582}], 'summary': 'Functions can have multiple versions with different data types, using method overloading to handle them without causing problems.', 'duration': 28.754, 'max_score': 778.809, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0778809.jpg'}, {'end': 878.76, 'src': 'embed', 'start': 851.3, 'weight': 1, 'content': [{'end': 855.824, 'text': "minimum number is equal to, and don't try to memorize all this stuff, especially if you're new.", 'start': 851.3, 'duration': 4.524}, {'end': 858.425, 'text': 'Long, but I doubt new people hung around for this.', 'start': 856.124, 'duration': 2.301}, {'end': 861.268, 'text': 'Math, random, you just call math random number.', 'start': 858.646, 'duration': 2.622}, {'end': 867.292, 'text': "It's going to generate a series of numbers between 0 and 1, so that's how it's going to generate all of them.", 'start': 861.428, 'duration': 5.864}, {'end': 869.774, 'text': "And then you're going to multiply that times.", 'start': 867.492, 'duration': 2.282}, {'end': 876.378, 'text': 'put multiple braces inside of there the max number that you want to generate, minus the minimum number you want to generate.', 'start': 869.774, 'duration': 6.604}, {'end': 878.76, 'text': 'And then come inside of there and then go plus one.', 'start': 876.558, 'duration': 2.202}], 'summary': 'Generate random numbers between 0 and 1, then multiply to get a range of numbers.', 'duration': 27.46, 'max_score': 851.3, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0851300.jpg'}, {'end': 1030.867, 'src': 'embed', 'start': 1007.609, 'weight': 2, 'content': [{'end': 1015.133, 'text': "here I'm working with characters, so let's say that I want to do a random number and I want to cast this into an int again.", 'start': 1007.609, 'duration': 7.524}, {'end': 1022.598, 'text': "put the equal sign in there, call math random and I don't want to go over 126 and the reason why This is what I'm going to be doing here.", 'start': 1015.133, 'duration': 7.465}, {'end': 1026.582, 'text': "I'm going to be getting different characters at random,", 'start': 1022.938, 'duration': 3.644}, {'end': 1030.867, 'text': "and this is the number that's going to pop back or that I'm going to use to get those characters.", 'start': 1026.582, 'duration': 4.285}], 'summary': 'Using math.random to generate random integers from 0 to 126 for obtaining different characters.', 'duration': 23.258, 'max_score': 1007.609, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01007609.jpg'}], 'start': 747.759, 'title': 'Java method overloading and random number generation', 'summary': "Discusses method overloading in java, creating multiple function versions with different data types, and demonstrates generating random numbers within a specified range for an animal's unique id. it also covers converting data types, emphasizing the use of math.random to generate numbers between 0 and 1, and the technique of casting to convert between data types. additionally, it explains using math.random to generate random numbers between 1 and 126, converting them to characters, and implementing if-then-else statements for specific characters, including space and new line.", 'chapters': [{'end': 851.3, 'start': 747.759, 'title': 'Java method overloading and random number generation', 'summary': "Discusses method overloading in java, where multiple versions of a function can be created with different data types, and demonstrates the generation of a random number within a specified range for an animal's unique id.", 'duration': 103.541, 'highlights': ['The chapter explains method overloading in Java, allowing the creation of multiple versions of a function with different data types, without causing any problems.', "It demonstrates the generation of a random number within a specified range for an animal's unique ID, using the 'long' data type and a minimum and maximum number."]}, {'end': 1007.609, 'start': 851.3, 'title': 'Converting data types in java', 'summary': 'Covers the process of generating random numbers and converting data types in java, emphasizing the use of math.random to generate numbers between 0 and 1, and the technique of casting to convert between data types.', 'duration': 156.309, 'highlights': ['The process of generating random numbers involves using math.random to generate a series of numbers between 0 and 1, and multiplying them by the range of numbers to be generated.', 'Casting is demonstrated as a technique to convert data types, such as converting a double returned by math.random to a long, and the flexibility of casting to various data types including byte and int.', 'The concept of primitives and objects in data types is explained, with examples of converting from primitive to string using methods like long.toString and byte.toString.', 'The chapter also covers the process of converting from a string to primitive data types, exemplifying the usage of methods like Integer.parseInt and Double.parseDouble to convert strings into integer and double data types.']}, {'end': 1107.253, 'start': 1007.609, 'title': 'Character randomization in java', 'summary': 'Covers using math.random to generate random numbers between 1 and 126, converting them to characters, and implementing if-then-else statements for specific characters, including space and new line.', 'duration': 99.644, 'highlights': ['Using Math.random to generate random numbers between 1 and 126, and converting them to characters.', 'Implementing if-then-else statements for specific characters such as space (32) and new line (10).', 'Explaining the concept of character randomization and its practical usage in Java.']}], 'duration': 359.494, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP0747759.jpg', 'highlights': ['The chapter explains method overloading in Java, allowing the creation of multiple versions of a function with different data types, without causing any problems.', 'The process of generating random numbers involves using math.random to generate a series of numbers between 0 and 1, and multiplying them by the range of numbers to be generated.', 'Using Math.random to generate random numbers between 1 and 126, and converting them to characters.']}, {'end': 1371.637, 'segs': [{'end': 1136.216, 'src': 'embed', 'start': 1107.253, 'weight': 1, 'content': [{'end': 1115.158, 'text': 'print this out, set to and then just put in plus this favorite character and make sure you put a period between there and there you go.', 'start': 1107.253, 'duration': 7.905}, {'end': 1126.187, 'text': "now there are also things called logical operators and you're basically going to have an exclamation point which is going to convert a boolean value to its right into the opposite.", 'start': 1115.158, 'duration': 11.029}, {'end': 1129.07, 'text': "so it's going to turn trues into falses and falses into trues,", 'start': 1126.187, 'duration': 2.883}, {'end': 1136.216, 'text': 'have a single and which returns true if the boolean value on the right and left are both true and it always evaluates both values.', 'start': 1129.07, 'duration': 7.146}], 'summary': 'Introduction to print statement and logical operators in programming.', 'duration': 28.963, 'max_score': 1107.253, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01107253.jpg'}, {'end': 1289.76, 'src': 'embed', 'start': 1259.287, 'weight': 0, 'content': [{'end': 1263.65, 'text': 'If, however, this comes back as false, random number is going to be assigned to which is bigger.', 'start': 1259.287, 'duration': 4.363}, {'end': 1265.612, 'text': 'So if this is true, you get this value.', 'start': 1263.831, 'duration': 1.781}, {'end': 1267.353, 'text': 'If this is false, you get the other value.', 'start': 1265.752, 'duration': 1.601}, {'end': 1268.674, 'text': "So that's a ternary operator.", 'start': 1267.473, 'duration': 1.201}, {'end': 1274.476, 'text': "Then another way to compare when you have a limited number of values you're working with is called a switch statement.", 'start': 1268.874, 'duration': 5.602}, {'end': 1277.557, 'text': 'And to use it, just go switch, random, number.', 'start': 1274.696, 'duration': 2.861}, {'end': 1278.817, 'text': "There's those braces again.", 'start': 1277.797, 'duration': 1.02}, {'end': 1280.857, 'text': 'And in this situation, you go case.', 'start': 1279.117, 'duration': 1.74}, {'end': 1283.498, 'text': "And the number I'm looking for is 8.", 'start': 1281.318, 'duration': 2.18}, {'end': 1289.76, 'text': 'And the data types you can use here, right there, like I have for 8, is going to be either an int, byte, or character.', 'start': 1283.498, 'duration': 6.262}], 'summary': 'The transcript explains the use of ternary operator and switch statement with an example of comparing a number, such as 8, using different data types like int, byte, or character.', 'duration': 30.473, 'max_score': 1259.287, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01259287.jpg'}], 'start': 1107.253, 'title': 'Logical operators & comparison in java', 'summary': 'Covers logical operators and comparison in java, including the use of logical operators like single and, double or, and exclamation point, as well as comparison using ternary operator and switch statement.', 'chapters': [{'end': 1371.637, 'start': 1107.253, 'title': 'Logical operators & comparison in java', 'summary': 'Covers logical operators and comparison in java, including the use of logical operators like single and, double or, and exclamation point, as well as comparison using ternary operator and switch statement.', 'duration': 264.384, 'highlights': ['The chapter covers logical operators and comparison in Java It explains the concept of logical operators and comparison in Java, providing a foundational understanding for further learning.', "The use of logical operators like single and, double or, and exclamation point It describes the usage of logical operators, including 'single and', 'double or', and 'exclamation point', giving insights into how they function and their practical applications.", 'Comparison using ternary operator and switch statement It discusses the comparison using the ternary operator for assignment and the switch statement for multiple value comparisons in Java, illustrating their use cases and syntax.']}], 'duration': 264.384, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01107253.jpg', 'highlights': ['The chapter covers logical operators and comparison in Java It explains the concept of logical operators and comparison in Java, providing a foundational understanding for further learning.', "The use of logical operators like single and, double or, and exclamation point It describes the usage of logical operators, including 'single and', 'double or', and 'exclamation point', giving insights into how they function and their practical applications.", 'Comparison using ternary operator and switch statement It discusses the comparison using the ternary operator for assignment and the switch statement for multiple value comparisons in Java, illustrating their use cases and syntax.']}, {'end': 1613.313, 'segs': [{'end': 1409.352, 'src': 'embed', 'start': 1371.917, 'weight': 0, 'content': [{'end': 1373.418, 'text': 'And here, this is just going to count.', 'start': 1371.917, 'duration': 1.501}, {'end': 1380.564, 'text': "And we're going to count by using a FOR statement, which is going to continue performing certain actions as long as the condition is true.", 'start': 1373.659, 'duration': 6.905}, {'end': 1382.166, 'text': "It's a way of looping.", 'start': 1380.584, 'duration': 1.582}, {'end': 1388.21, 'text': "Here, what you're going to do is you're going to take the starting number that was passed inside of there and initialize that to i.", 'start': 1382.446, 'duration': 5.764}, {'end': 1392.996, 'text': "then you're going to put in your condition as long as i is less than or equal to 100.", 'start': 1388.951, 'duration': 4.045}, {'end': 1400.304, 'text': "in this situation, we're going to continue looping and then i++, we're going to increment i each time we go through the loop.", 'start': 1392.996, 'duration': 7.308}, {'end': 1405.369, 'text': 'what we specifically want to do in this situation is we want to skip printing out 90 to the screen.', 'start': 1400.304, 'duration': 5.065}, {'end': 1409.352, 'text': 'The way we would do that is if i is equal to 90, continue.', 'start': 1405.389, 'duration': 3.963}], 'summary': 'Using a for loop to count from a starting number to 100 with a condition and skipping 90.', 'duration': 37.435, 'max_score': 1371.917, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01371917.jpg'}, {'end': 1514.872, 'src': 'embed', 'start': 1487.456, 'weight': 4, 'content': [{'end': 1491.038, 'text': 'and then finally, you may have noticed up here previously i had void.', 'start': 1487.456, 'duration': 3.582}, {'end': 1492.279, 'text': 'For a lot of functions.', 'start': 1491.238, 'duration': 1.041}, {'end': 1495.22, 'text': "void just means it doesn't return anything when it's done executing.", 'start': 1492.279, 'duration': 2.941}, {'end': 1498.542, 'text': "String means it's going to return a string to whoever calls it.", 'start': 1495.461, 'duration': 3.081}, {'end': 1506.027, 'text': "And what I'm going to do, since this is a static, I have to refer to this function up here, count2, by putting the class name ahead of it.", 'start': 1498.783, 'duration': 7.244}, {'end': 1508.749, 'text': "xNumbers divided by 2 is what we're going to pass to that.", 'start': 1506.347, 'duration': 2.402}, {'end': 1514.872, 'text': 'And then at the end of it, you can either return a string variable, or you can just type the string inside of here in this situation.', 'start': 1508.909, 'duration': 5.963}], 'summary': 'Explaining function return types and static method usage in java.', 'duration': 27.416, 'max_score': 1487.456, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01487456.jpg'}, {'end': 1569.421, 'src': 'embed', 'start': 1521.798, 'weight': 3, 'content': [{'end': 1526.661, 'text': "and I'm gonna actually use a real-world scenario here protected static void.", 'start': 1521.798, 'duration': 4.863}, {'end': 1531.685, 'text': 'guess my number is gonna be the name of this gonna define an integer number.', 'start': 1526.661, 'duration': 5.024}, {'end': 1532.766, 'text': "don't give it a value.", 'start': 1531.685, 'duration': 1.081}, {'end': 1539.512, 'text': "and what the do-while loop does is it guarantees it's gonna execute at least one time, and that works particularly well.", 'start': 1532.766, 'duration': 6.746}, {'end': 1544.616, 'text': "whenever we're asking for user input in this situation, we're gonna have them guess a number.", 'start': 1539.512, 'duration': 5.104}, {'end': 1547.576, 'text': 'guess number up to 100..', 'start': 1544.616, 'duration': 2.96}, {'end': 1551.777, 'text': 'Now what we want to do is we want to verify that they entered an integer.', 'start': 1547.576, 'duration': 4.201}, {'end': 1553.318, 'text': 'How do we do that? Wow.', 'start': 1551.837, 'duration': 1.481}, {'end': 1554.438, 'text': 'Put the not in there.', 'start': 1553.578, 'duration': 0.86}, {'end': 1557.859, 'text': 'User input has next int.', 'start': 1554.818, 'duration': 3.041}, {'end': 1562.9, 'text': "So if it has an integer that they just entered, then we're not going to do this.", 'start': 1558.179, 'duration': 4.721}, {'end': 1568.741, 'text': "If, however, they enter a character or something else that's not an integer, then we're going to come inside of here.", 'start': 1563.24, 'duration': 5.501}, {'end': 1569.421, 'text': "I'm going to go.", 'start': 1568.761, 'duration': 0.66}], 'summary': 'Using do-while loop to ensure user inputs integer guess number up to 100.', 'duration': 47.623, 'max_score': 1521.798, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01521798.jpg'}, {'end': 1622.459, 'src': 'embed', 'start': 1592.062, 'weight': 5, 'content': [{'end': 1593.323, 'text': "Sorry about that, wasn't thinking.", 'start': 1592.062, 'duration': 1.261}, {'end': 1602.207, 'text': 'And if instead of a string you want to use either a byte short int or long, you would put a d in there instead of an s.', 'start': 1593.663, 'duration': 8.544}, {'end': 1603.168, 'text': 'So a d right here.', 'start': 1602.207, 'duration': 0.961}, {'end': 1606.41, 'text': 'If you want to use a float or a double, you would put an f inside of here.', 'start': 1603.428, 'duration': 2.982}, {'end': 1610.872, 'text': "And let's say that you'd want to define that it have at least two decimal places.", 'start': 1606.61, 'duration': 4.262}, {'end': 1613.313, 'text': 'you put .2 inside of there.', 'start': 1611.172, 'duration': 2.141}, {'end': 1615.315, 'text': "This is a string, so I'm going to leave that be a string.", 'start': 1613.413, 'duration': 1.902}, {'end': 1622.459, 'text': "Okay, in the, for instance, in which they actually enter an integer like we asked them to, we're not going to get to that while loop.", 'start': 1615.335, 'duration': 7.124}], 'summary': 'Explanation of formatting for byte short int and long, float, and double data types in programming.', 'duration': 30.397, 'max_score': 1592.062, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01592062.jpg'}], 'start': 1371.917, 'title': 'Java loops and conditions', 'summary': 'Explains the while loop and do-while loop in java, demonstrating incrementing, breaking out of loops, and user input validation, with a focus on the functionality and syntax of the loops and conditions. it also covers the concept of returning values from functions and the usage of print f for formatted output.', 'chapters': [{'end': 1429.948, 'start': 1371.917, 'title': 'Using for loop for counting', 'summary': 'Explains the usage of a for statement to count from a starting number to 100, incrementing by 1 each time, while also skipping the number 90.', 'duration': 58.031, 'highlights': ['The FOR statement is used to loop through a specific range of numbers, in this case from the starting number to 100, incrementing by 1 each time.', 'The condition for the loop is set as long as the value of i is less than or equal to 100.', "An 'if' statement is used to skip printing out the number 90 to the screen during the loop iteration."]}, {'end': 1613.313, 'start': 1430.248, 'title': 'Java loops and conditions', 'summary': 'Explains the while loop and do-while loop in java, demonstrating incrementing, breaking out of loops, and user input validation, with a focus on the functionality and syntax of the loops and conditions. it also covers the concept of returning values from functions and the usage of print f for formatted output.', 'duration': 183.065, 'highlights': ['The while loop requires the incrementing variable to be placed outside the loop and continues to perform actions as long as the specified condition is true.', 'The do-while loop guarantees at least one execution, making it suitable for scenarios such as user input validation.', 'Explanation of the return type of functions, with void indicating no return and string indicating the return of a string value.', 'Demonstration of using print f for formatted output, including the usage of %d for integer and %f for float/double with specified decimal places.', 'Illustration of user input validation using the scanner class in Java, with the example of validating integer input and providing formatted output based on the input type.']}], 'duration': 241.396, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01371917.jpg', 'highlights': ['The FOR statement is used to loop through a specific range of numbers, incrementing by 1 each time.', 'The condition for the loop is set as long as the value of i is less than or equal to 100.', "An 'if' statement is used to skip printing out the number 90 to the screen during the loop iteration.", 'The do-while loop guarantees at least one execution, making it suitable for scenarios such as user input validation.', 'Explanation of the return type of functions, with void indicating no return and string indicating the return of a string value.', 'Demonstration of using print f for formatted output, including the usage of %d for integer and %f for float/double with specified decimal places.', 'Illustration of user input validation using the scanner class in Java, with the example of validating integer input and providing formatted output based on the input type.']}, {'end': 2068.956, 'segs': [{'end': 1662.69, 'src': 'embed', 'start': 1633.706, 'weight': 1, 'content': [{'end': 1635.227, 'text': 'and then put a semicolon at the end there.', 'start': 1633.706, 'duration': 1.521}, {'end': 1640.052, 'text': 'Okay, so this is going to execute until they enter the number 50 into the input.', 'start': 1635.387, 'duration': 4.665}, {'end': 1641.553, 'text': "So that's 50 is our secret number.", 'start': 1640.152, 'duration': 1.401}, {'end': 1644.476, 'text': 'Then you could print out something that says, yay, you got the number.', 'start': 1641.573, 'duration': 2.903}, {'end': 1651.123, 'text': 'Okay, now what I want to do is demonstrate something called polymorphism, which sounds very complicated, but it completely is not.', 'start': 1644.756, 'duration': 6.367}, {'end': 1653.644, 'text': 'All right, this is going to return a string.', 'start': 1651.403, 'duration': 2.241}, {'end': 1655.866, 'text': "And it's going to be very, very simple.", 'start': 1654.185, 'duration': 1.681}, {'end': 1657.107, 'text': 'Return grr.', 'start': 1656.106, 'duration': 1.001}, {'end': 1662.69, 'text': 'Okay, so every animal by default is going to return grr whenever the make sound is called.', 'start': 1657.127, 'duration': 5.563}], 'summary': "Demonstrating polymorphism with simple animal sound returning 'grr'.", 'duration': 28.984, 'max_score': 1633.706, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01633706.jpg'}, {'end': 1699.468, 'src': 'embed', 'start': 1671.055, 'weight': 0, 'content': [{'end': 1672.796, 'text': "that's what void means speak animal.", 'start': 1671.055, 'duration': 1.741}, {'end': 1679.139, 'text': "this guy is going to accept any animal type, even if it's a dog or a cat, which we're going to create here in a second.", 'start': 1672.796, 'duration': 6.343}, {'end': 1687.022, 'text': "and even if this method makes sound and dog and animal are changed, it's going to automatically print out the right animal sound.", 'start': 1679.139, 'duration': 7.883}, {'end': 1689.183, 'text': "that's part of polymorphism.", 'start': 1687.022, 'duration': 2.161}, {'end': 1691.905, 'text': "so we'll just say animal says rand.", 'start': 1689.183, 'duration': 2.722}, {'end': 1696.887, 'text': 'animal that was passed inside of here make sound and it will execute the right method.', 'start': 1691.905, 'duration': 4.982}, {'end': 1698.407, 'text': "i'm going to show you that here in a second.", 'start': 1696.887, 'duration': 1.52}, {'end': 1699.468, 'text': "actually, let's just do it.", 'start': 1698.407, 'duration': 1.061}], 'summary': 'Demonstrating polymorphism with animal sounds and types.', 'duration': 28.413, 'max_score': 1671.055, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01671055.jpg'}, {'end': 1775.567, 'src': 'embed', 'start': 1750.41, 'weight': 2, 'content': [{'end': 1756.174, 'text': 'So this becomes a nice easy way to store multiple animal subtypes in an array.', 'start': 1750.41, 'duration': 5.764}, {'end': 1760.736, 'text': "Let's call this array the animals equal to new animal.", 'start': 1756.334, 'duration': 4.402}, {'end': 1761.957, 'text': 'This is how we create an array.', 'start': 1760.796, 'duration': 1.161}, {'end': 1765.619, 'text': 'And you have to define the fixed size of the array whenever you create it.', 'start': 1762.197, 'duration': 3.422}, {'end': 1773.465, 'text': "Then what I can do is say in the array, in box number zero, that's where all the arrays start, zero, put Fido.", 'start': 1765.819, 'duration': 7.646}, {'end': 1775.567, 'text': 'And in box number one, put Fluffy.', 'start': 1773.725, 'duration': 1.842}], 'summary': 'An array is created to store multiple animal subtypes, with fido in box 0 and fluffy in box 1.', 'duration': 25.157, 'max_score': 1750.41, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01750410.jpg'}, {'end': 1849.885, 'src': 'embed', 'start': 1823.395, 'weight': 4, 'content': [{'end': 1829.897, 'text': 'Now like I said before an array is just a fixed series of boxes that contain multiple values of the same data type.', 'start': 1823.395, 'duration': 6.502}, {'end': 1832.278, 'text': 'And you can create an array in a couple different ways.', 'start': 1830.158, 'duration': 2.12}, {'end': 1836.14, 'text': 'Like this and then say favorite number for example.', 'start': 1832.839, 'duration': 3.301}, {'end': 1837.5, 'text': 'And then on the next one.', 'start': 1836.42, 'duration': 1.08}, {'end': 1842.822, 'text': "whenever you initialize it with whatever you want or you actually know how many boxes you're going to need.", 'start': 1837.5, 'duration': 5.322}, {'end': 1846.423, 'text': 'favorite number, equal new int 20,, for example.', 'start': 1842.822, 'duration': 3.601}, {'end': 1849.885, 'text': "that's going to give you 20 boxes to store integer data types inside of it.", 'start': 1846.423, 'duration': 3.462}], 'summary': "An array is a fixed series of boxes containing multiple values of the same data type, and can be created in various ways, such as setting a favorite number or initializing with a specific number of boxes, like 'new int 20' to store integer data types.", 'duration': 26.49, 'max_score': 1823.395, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01823395.jpg'}, {'end': 1998.539, 'src': 'embed', 'start': 1967.537, 'weight': 3, 'content': [{'end': 1969.819, 'text': 'And then the last one is how many of those groups.', 'start': 1967.537, 'duration': 2.282}, {'end': 1971.159, 'text': 'Well, in this situation, we have 1.', 'start': 1969.859, 'duration': 1.3}, {'end': 1973.041, 'text': 'In this situation, we have 2.', 'start': 1971.159, 'duration': 1.882}, {'end': 1974.582, 'text': "As you see, there's 2 and there's 2.", 'start': 1973.041, 'duration': 1.541}, {'end': 1977.103, 'text': 'Okay, so hopefully multidimensional arrays make sense now.', 'start': 1974.582, 'duration': 2.521}, {'end': 1982.527, 'text': 'And in the interest of saving some time, this is how you would print out this multidimensional array.', 'start': 1977.784, 'duration': 4.743}, {'end': 1987.971, 'text': 'If you wanted to print out just one array using a for loop, initialize this to 0 because the first index is 0.', 'start': 1982.727, 'duration': 5.244}, {'end': 1992.614, 'text': "You're going to cycle through as long as i is less than the array name length.", 'start': 1987.971, 'duration': 4.643}, {'end': 1998.539, 'text': "so this returns the length of the array and then, if you wanted to do another one, you're just going to have that there, except in this situation,", 'start': 1992.854, 'duration': 5.685}], 'summary': 'The transcript discusses working with multidimensional arrays and printing array elements using a for loop.', 'duration': 31.002, 'max_score': 1967.537, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01967537.jpg'}, {'end': 2056.867, 'src': 'embed', 'start': 2020.018, 'weight': 5, 'content': [{'end': 2022.32, 'text': 'And then you tell it how many indexes you want to copy.', 'start': 2020.018, 'duration': 2.302}, {'end': 2023.421, 'text': "And that's how you copy it.", 'start': 2022.54, 'duration': 0.881}, {'end': 2026.363, 'text': 'You can print out the whole entire array really quickly.', 'start': 2023.601, 'duration': 2.762}, {'end': 2027.444, 'text': 'Just going like this.', 'start': 2026.483, 'duration': 0.961}, {'end': 2029.385, 'text': 'Then going arrays to string.', 'start': 2027.764, 'duration': 1.621}, {'end': 2032.828, 'text': 'You can do toString for pretty much all variables.', 'start': 2030.146, 'duration': 2.682}, {'end': 2033.649, 'text': "It's going to print them out.", 'start': 2032.888, 'duration': 0.761}, {'end': 2035.851, 'text': 'And in this situation, clone of array.', 'start': 2033.929, 'duration': 1.922}, {'end': 2043.957, 'text': "Then if you want to do a search to find out if an item is in an array, you go arrays, binary, search, and then you're going to type in clone of array.", 'start': 2035.991, 'duration': 7.966}, {'end': 2048.96, 'text': "And then the very specific, don't put that star inside of there, the very specific thing you're looking for.", 'start': 2044.257, 'duration': 4.703}, {'end': 2054.966, 'text': "And if it finds it, it will return the index for where it's located or it will return a negative number.", 'start': 2049.402, 'duration': 5.564}, {'end': 2056.867, 'text': 'So there is Core Java.', 'start': 2055.146, 'duration': 1.721}], 'summary': 'The core java tutorial covers copying, printing, converting arrays to strings, and searching for items in an array with specific methods.', 'duration': 36.849, 'max_score': 2020.018, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP02020018.jpg'}], 'start': 1613.413, 'title': 'Polymorphism, arrays, & java', 'summary': 'Introduces polymorphism in programming using animal objects and arrays, and covers creation, manipulation, and searching of arrays in java, including single-dimensional and multi-dimensional arrays, array copying, and converting arrays to strings.', 'chapters': [{'end': 1823.175, 'start': 1613.413, 'title': 'Polymorphism and arrays in programming', 'summary': 'Introduces the concept of polymorphism in programming through a demonstration using animal objects such as dogs and cats, and also explains the use of arrays to store multiple animal subtypes.', 'duration': 209.762, 'highlights': ['The demonstration of polymorphism using animal objects like dogs and cats The demonstration involves creating animal objects such as Fido the dog and Fluffy the cat, and showing how their make sound methods execute the right function even though they are referred to as animals.', 'Explanation of the use of arrays to store multiple animal subtypes The chapter explains how arrays can be used to store multiple animal subtypes, such as storing Fido and Fluffy in an array and calling their make sound methods accordingly.', "Introduction to the concept of polymorphism in programming The chapter introduces the concept of polymorphism and its simplicity by demonstrating how animal objects can override the make sound method to produce different sounds, such as 'wolf' for a dog and 'meow' for a cat."]}, {'end': 2068.956, 'start': 1823.395, 'title': 'Understanding arrays in java', 'summary': 'Covers the creation and manipulation of arrays in java, including single-dimensional, multi-dimensional arrays, array copying, converting arrays to strings, and searching for items in an array.', 'duration': 245.561, 'highlights': ['Explanation of multi-dimensional arrays Provides a detailed explanation of multi-dimensional arrays in Java, including the concept, structure, and graphical representation.', 'Creating and initializing arrays Discusses various ways to create and initialize arrays in Java, including specifying the size and initializing all at once.', "Copying arrays Explains how to copy arrays in Java, using the 'clone' method and 'arrays.copy' method.", "Searching for items in an array Demonstrates how to search for items in an array using the 'arrays.binarySearch' method, which returns the index of the item or a negative number if not found."]}], 'duration': 455.543, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/WPvGqX-TXP0/pics/WPvGqX-TXP01613413.jpg', 'highlights': ['Demonstration of polymorphism using animal objects like dogs and cats', 'Introduction to the concept of polymorphism in programming', 'Explanation of the use of arrays to store multiple animal subtypes', 'Explanation of multi-dimensional arrays', 'Creating and initializing arrays', 'Copying arrays', 'Searching for items in an array']}], 'highlights': ['The chapter explains method overloading in Java, allowing the creation of multiple versions of a function with different data types, without causing any problems.', 'The process of generating random numbers involves using math.random to generate a series of numbers between 0 and 1, and multiplying them by the range of numbers to be generated.', 'Using Math.random to generate random numbers between 1 and 126, and converting them to characters.', 'The chapter covers logical operators and comparison in Java It explains the concept of logical operators and comparison in Java, providing a foundational understanding for further learning.', "The use of logical operators like single and, double or, and exclamation point It describes the usage of logical operators, including 'single and', 'double or', and 'exclamation point', giving insights into how they function and their practical applications.", 'Comparison using ternary operator and switch statement It discusses the comparison using the ternary operator for assignment and the switch statement for multiple value comparisons in Java, illustrating their use cases and syntax.', 'The FOR statement is used to loop through a specific range of numbers, incrementing by 1 each time.', 'The condition for the loop is set as long as the value of i is less than or equal to 100.', "An 'if' statement is used to skip printing out the number 90 to the screen during the loop iteration.", 'The do-while loop guarantees at least one execution, making it suitable for scenarios such as user input validation.', 'Explanation of the return type of functions, with void indicating no return and string indicating the return of a string value.', 'Demonstration of using print f for formatted output, including the usage of %d for integer and %f for float/double with specified decimal places.', 'Illustration of user input validation using the scanner class in Java, with the example of validating integer input and providing formatted output based on the input type.', 'Demonstration of polymorphism using animal objects like dogs and cats', 'Introduction to the concept of polymorphism in programming', 'Explanation of the use of arrays to store multiple animal subtypes', 'Explanation of multi-dimensional arrays', 'Creating and initializing arrays', 'Copying arrays', 'Searching for items in an array', 'The chapter provides a Java programming tutorial, creating classes for animals, defining fields and data types in Java, and emphasizes the importance of private fields.', 'It also covers the process of defining attributes for objects and importing libraries in Java programming.', 'The chapter introduces various data types in Java, such as byte, long, double, and integer, with their respective ranges and usage scenarios.', 'It discusses the concept of static variables and their usage in Java classes, emphasizing the importance of marking a variable static when it does not make sense for an object to have that property on its own.', 'The chapter explains the concept of inheritance in Java classes, where subclasses inherit fields and methods from their superclass, exemplified by the extension of dog and cat classes from the animal superclass.', 'The chapter covers the basics of Java programming, including object creation, math functions, print vs. println, if statements, user input validation, getters and setters, and data type validation.', 'The process of creating objects, setting their attributes, and validating user input is explained in detail, providing a foundation for understanding Java programming concepts.', "The main function in Java is the entry point for code execution and is denoted by 'public static void main(String[] args)', where 'args' is an array for storing command line arguments.", "The shorthand notation for incrementing a variable in Java using '++' adds one to the current value, which is equivalent to the expression 'number of animals equals number of animals plus one'.", "The system out print line function in Eclipse is used for displaying output on the screen, and it allows concatenating strings and values using the '+' operator, as demonstrated with the example '5 plus 1 equals sum of numbers'."]}