public class Use implements Define {
	public Use() {
	}

	public void Print() {
		System.out.println("Class Use::Print");
	}

	public void Echo() {
		System.out.println("Class Use::Echo");
	}

	public static void main(String[] argv) {
		Define d = new Use();
		d.Print();
		d.Echo();
		d = new Use2();
		d.Print();
		d.Echo();
	}
}