Java Hello World Program | Hello Java

A "Hello, World!" is a simple program that outputs Hello, World! on the screen. Since it's a very simple program, it's often used to introduce a new programming language to a newbie.

Let's explore how Java "Hello, World!" program works.

If you want to run this program on your computer, make sure that Java is properly installed. Also, you need an IDE (or a text editor) to write and edit Java code. For that, check How to run Java on your computer?

 

Java "Hello, World!" Program

// Your First Program

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

Output

Hello, World!

Note: If you have compiled the exact code, you need to save the file as HelloWorld.java. It's because the name of the class and file name should match in Java. To learn more, visit Why are filename in Java the same as the class name?

Also, some online compiler only accepts the class named Main.