// "HelloWorld" names the class... The file name should be the same.
class HelloWorld {
	public static void main(String [] args){
		// The program starts running here.  "main" is the key word
		// that tells the program where to start.

		// System.out.println prints the words "Hello World!" on
		// the console windo.
		System.out.println("Hello World!");
	}
}