BasicAnimation

import acm.program.*;
import acm.graphics.*;
 
public class BasicAnimation extends GraphicsProgram {
 
    public void run() {
        GRect rect = new GRect(72, 72); 
        add(rect,0,36); 
        while (true) {
            rect.move(1,1);
            pause(8);
        }
    }
 
    public static void main(String[] args) {
        String[] newArgs = new String[args.length + 1];
        System.arraycopy(args, 0, newArgs, 0, args.length);
        newArgs[args.length] = "code=" + new SecurityManager() {
            public String className() {
                return this.getClassContext()[1].getCanonicalName();
            }
        }.className();
        GraphicsProgram.main(newArgs);
    }
}