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Java Tutorial

Java HOME Java Intro Java Get Started Java Syntax Java Output
Print Text Print Numbers
Java Comments Java Variables
Variables Print Variables Declare Multiple Variables Identifiers
Java Data Types
Data Types Numbers Booleans Characters Non-primitive Types
Java Type Casting Java Operators Java Strings
Strings Concatenation Numbers and Strings Special Characters
Java Math Java Booleans Java If...Else
If...Else Short Hand If...Else
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For Loop For-Each Loop
Java Break/Continue Java Arrays
Arrays Loop Through an Array Multidimensional Arrays

Java Methods

Java Methods Java Method Parameters Java Method Overloading Java Scope Java Recursion

Java Classes

Java OOP Java Classes/Objects Java Class Attributes Java Class Methods Java Constructors Java Modifiers Java Encapsulation Java Packages / API Java Inheritance Java Polymorphism Java Inner Classes Java Abstraction Java Interface Java Enums Java User Input Java Date Java ArrayList Java LinkedList Java HashMap Java HashSet Java Iterator Java Wrapper Classes Java Exceptions Java RegEx Java Threads Java Lambda

Java File Handling

Java Files Java Create/Write Files Java Read Files Java Delete Files

Java How To

Add Two Numbers Count Words Reverse a String Sum of Array Elements Area of Rectangle Even or Odd Number

Java Reference

Java Keywords
abstract boolean break byte case catch char class continue default do double else enum extends final finally float for if implements import instanceof int interface long new package private protected public return short static super switch this throw throws try void while
Java String Methods Java Math Methods

Java Examples

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Java Tutorial

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Examples in Each Chapter

Our "Try it Yourself" editor makes it easy to learn Java. You can edit Java code and view the result in your browser.

Example

public class Main {
  public static void main(String[] args) {
    System.out.println("Hello World");
  }
}

Try it Yourself »

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We recommend reading this tutorial, in the sequence listed in the left menu.

Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.

Java Exercises

Test Yourself With Exercises

Exercise:

Insert the missing part of the code below to output "Hello World".

public class MyClass {
  public static void main(String[] args) {
    ..("Hello World");
  }
}

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Java Quiz

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Java Reference

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