Java Tutorial

public class Main {

  public static void main(String[] args) {
    System.out.println("Ready to learn Java?");
    System.out.println("Start your journey.");
  }

}

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.

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

Exercises

Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

See all Java Exercises

What You'll Learn

This tutorial will guide you step by step, with examples and exercises along the way:

• Java syntax and basic structure
• Variables, data types, and operators
• Conditions and loops
• Methods and parameters
• Arrays and strings
• Object-oriented programming
• Classes, objects, inheritance, and polymorphism
• Exception handling
• File handling
• Collections and useful built-in classes

Java Reference

You will also find complete keyword and method references: