The Future Is Behind You

Hello World

public class HelloWorld {

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

In order to run this program, you need to have a text editor installed. You'll need to create a file and save it as HelloWorld.java with the above text in it. You will need to compile the program in the shell using the javac command as follows:

$ javac HelloWorld.java

After it compiles, you can run it using the java command.

$ java HelloWorld
Hello World!

a = b = c