
public class HelloWorld {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println("Hello world 1!");
	}
}


public class HelloWorld {

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

Revert hello world message. Remove comment
Revert hello world message. Remove comment
