装饰者模式

 

创建抽象装饰类Decorator，包含一个MobilePhone类型的私有变量。

 1 public class Decorator extends MobilePhone{
 2 
 3     private MobilePhone _mobilePhone;
 4     
 5     public Decorator(MobilePhone mobilePhone){
 6         _mobilePhone=mobilePhone;
 7         phoneName=mobilePhone.phoneName;
 8     }
 9     @Override
10     public void SendMessage() {
11         // TODO Auto-generated method stub
12         _mobilePhone.SendMessage();
13     }
14 
15     @Override
16     public void Call() {
17         // TODO Auto-generated method stub
18         _mobilePhone.Call();
19     }
20 
21 }

书写主函数Main来分别创建小米手机和苹果手机，并且分别加上蓝牙功能、GPS功能和视频通话功能。

 1 public class Main {
 2 
 3     public static void main(String[] args) {
 4         // TODO Auto-generated method stub
 5         MiPhone miPhone=new MiPhone();
 6         iPhone iphone=new iPhone();
 7         
 8         Bluetooth miBluetooth=new Bluetooth(miPhone);
 9         miBluetooth.Connect();
10         GPS miGPS=new GPS(miPhone);
11         miGPS.Location="MiPhone的定位成功";
12         System.out.println(miGPS.Location);
13         Camera miCamera=new Camera(miPhone);
14         miCamera.VideoCall();
15         
16         Bluetooth iBluetooth=new Bluetooth(iphone);
17         iBluetooth.Connect();
18         GPS iGPS=new GPS(iphone);
19         miGPS.Location="iPhone的定位成功";
20         System.out.println(miGPS.Location);
21         Camera iCamera=new Camera(iphone);
22         iCamera.VideoCall();
23     }
24 
25 }