《软件设计》装饰模式

问题描述;

用装饰模式模拟手机功能的升级过程：简单的手机(SimplePhone)在接收来电时，会发出声音提醒主人；而JarPhone除了声音还能振动；更高级的手机(ComplexPhone)除了声音、振动外，还有灯光闪烁提示。

类图：

 

 

代码：

Changer.java

public class Changer implements Phone{

    private Phone phone;
    public Changer(Phone p) {
        this.phone=p;
    }
    public void voice() {
        phone.voice();
    }
}
ComplexPhone.java

public class ComplexPhone extends Changer{

    public ComplexPhone(Phone p) {
        super(p);
        System.out.println("ComplexPhone");
    }

    public void zhendong() {
        System.out.println("会震动！");
    }
    public void dengguang() {
        System.out.println("会发光！");
    }

}
JarPhone.java

public class JarPhone extends Changer{

    public JarPhone(Phone p) {
        super(p);
        System.out.println("Jarphone");
    }

    public void zhendong() {
        System.out.println("会震动！");
    }
}
Phone.java

public interface Phone {
    public void voice();
}
SimplePhone.java

public class SimplePhone implements Phone{

    public void voice() {
        System.out.println("发出声音！");
    }

}
Main.java

public class Main {
       public static void main(String[] args) {
              Phone phone;
              phone=new SimplePhone();
              phone.voice();
              JarPhone jarphone=new JarPhone(phone);
              jarphone.voice();
              jarphone.zhendong();
              ComplexPhone complexphone = new ComplexPhone(phone);
              complexphone.zhendong();
              complexphone.dengguang();
       }
}

运行截图：