The very first code I ever wrote in my Algorithm & Programming class.

NotHelloWorld.java

/*
 * @(#)NotHelloWorld.java        0.1 2014/03/21
 *
 * Copyright (c) 2014 Resi Respati <[email protected]>
 * Licensed under WTFPL.
 *
 */

//IMPORT DAT SHIT
import java.util.*;

//NO. THIS IS NOT HELLO WORLD.
public class NotHelloWorld {
    public static void main(String [] args) {
        System.out.println("U WOT M8");
    }
}