装饰模式——java实现

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。

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//Phone.java package shiyan11;   public interface  Phone {         public void call(); } //SimplePhone.java package shiyan11;   public class SimplePhone implements Phone{     public SimplePhone(){         System.out.println("手机收到来电");     }     public void call(){         System.out.println("发出声音：主人来电话啦！");     } } //UpgradePhone.java package shiyan11;   public class UpgradePhone implements Phone{     private Phone phone;     public UpgradePhone(Phone a){         phone=a;     }     public void call(){         phone.call();     } } //JarPhone.java package shiyan11;   public class JarPhone extends UpgradePhone{     public JarPhone(Phone phone){         super(phone);         System.out.println("***增加振动的功能***");     }     public void shoke(){         System.out.println("振动：嗡嗡嗡");     } } //ComplexPhone.java package shiyan11; public class ComplexPhone extends UpgradePhone{     public ComplexPhone(Phone phone){         super(phone);         System.out.println("***增加闪光功能***");     }     public void light(){         System.out.println("灯光闪烁：咔嚓");     } }