First Java Program

First Java Program — a practical guide to first Java program Hello World with clear examples you can reuse in real projects.

Java Tutorial Series (7/90). Prefer one article? Read the complete Java tutorial.

Short description

Every beginner starts with a `main` method. Compile with `javac` and run with `java`.

HelloWorld.java

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, Java!");
    }
}

// javac HelloWorld.java
// java HelloWorld