public class MyApplication {
     void displayStuff (StatusPrinter s) {
		s.printStatus();
    }	

    public static void main (String args[]) {
                MyApplication p = new MyApplication();
		Accumulator a1 = new Accumulator();
		Counter     c1 = new Counter();
		p.displayStuff (a1);
		p.displayStuff (c1);
	}
}