装饰模式

package decorator;
/***
 * 抽象接口
 * @author zw
 *
 */
public interface ICar {
	void move();
	
}

/***
真实对象

 */
class Car implements ICar{

	@Override
	public void move() {
		System.out.println("陆地上跑");
	}
	
}

//装饰角色
class SuperCar implements ICar{
	
	protected ICar car;
	
	public SuperCar(ICar car) {
		super();
		this.car = car;
	}

	@Override
	public void move() {
		car.move();
	}
	
}
//具体装饰对象
class FlyCar extends SuperCar{

	public FlyCar(ICar car) {
		super(car);
		// TODO Auto-generated constructor stub
	}
	public void fly() {
		System.out.println("可以飞行");
	}
	
	public void move() {
		super.move();
		fly();
	}
}


class WaterCar extends SuperCar{

	public WaterCar(ICar car) {
		super(car);
		// TODO Auto-generated constructor stub
	}
	public void swim() {
		System.out.println("可以水上游");
	}
	
	public void move() {
		super.move();
		swim();
	}
}

class AICar extends SuperCar{

	public AICar(ICar car) {
		super(car);
		// TODO Auto-generated constructor stub
	}
	public void autoMove() {
		System.out.println("人工智能在陆地上跑");
	}
	
	public void move() {
		super.move();
		autoMove();
	}
}

package decorator;

public class Client {

	public static void main(String[] args) {
		Car car = new Car();
		car.move();
		
		System.out.println("增加新功能：天上飞#####");
		SuperCar sc = new FlyCar(car);
		sc.move();
		
		System.out.println("既能天上飞还能水里游#####");
		SuperCar sc1 = new WaterCar(sc);
		sc1.move();
		
	}

}