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Java Tutorial

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Java is a programming language.

Java is used to develop mobile apps, web apps, desktop apps, games and much more.

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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 »

Click on the "Run example" button to see how it works.

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");
  }
}

Start the Exercise

Learn by Examples

Learn by examples! This tutorial supplements all explanations with clarifying examples.

See All Java Examples

Java Quiz

Test your Java skills with a quiz.

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Java Reference

Java Keywords

Java String Methods

Java Math Methods

Download Java

Download Java from the official Java web site: https://www.oracle.com

Java Exam - Get Your Diploma!

W3Schools Certification

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The HTML Certificate documents your knowledge of HTML.

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The JavaScript Certificate documents your knowledge of JavaScript and HTML DOM.

The Python Certificate documents your knowledge of Python.

The jQuery Certificate documents your knowledge of jQuery.

The SQL Certificate documents your knowledge of SQL.

The PHP Certificate documents your knowledge of PHP and MySQL.

The Java Certificate documents your knowledge of Java.

The XML Certificate documents your knowledge of XML, XML DOM and XSLT.

The Bootstrap Certificate documents your knowledge of the Bootstrap framework.


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