package SimpleSlot; /** * Created by Administrator on 2017/6/19. */ public class GarageDoorCloseCommand implements Command { GarageDoor garageDoor; public GarageDoorCloseCommand(GarageDoor garageDoor) { this.garageDoor = garageDoor; } @Override public void execute() { garageDoor.lightClose(); garageDoor.down(); System.out.println("GarageDoor is down"); } @Override public void undo() { garageDoor.lightClose(); garageDoor.up(); System.out.println("GarageDoor is on"); } }