Hello World

Below is the source code for a traditional Hello World program.


  1. Try changing the message from Hello World to your name and click Run again.
  2. If everything worked without an error, congratulations, you have just run your first Java program.
//This is a comment and will be ignored by the Java compiler
//The program is fully editable
//Try changing the 'Hello World, I'm a Java program'
//to your name and click the Run button
public class HelloWorld {
   //This is the main function of a Java program.
    public static void main (String[] args) {
        //The System.out.println() is used to print output to the console
        System.out.println("Hello World,  I'm a Java program");

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