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根据上述要求来用建造者模式设计程序。我将程序放在了https://github.com/RoyalBob/Decorator-Mode-Practice.git 欢迎访问。
以下是本程序的UML图以及代码：
1、创建抽象组件类MobilePhone。
1 public abstract class MobilePhone 2 { 3 public String phoneName; 4 public abstract void SendMessage(); 5 public abstract void Call(); 6 }
2、分别创建具体组件小米和苹果手机类，继承自MobilePhone。
1 public class MiPhone extends MobilePhone{ 2 3 public MiPhone() { 4 // TODO Auto-generated constructor stub 5 phoneName="MiPhone"; 6 } 7 @Override 8 public void SendMessage() { 9 // TODO Auto-generated method stub 10 System.out.println( phoneName+"‘s SendMessage." ); 11 } 12 13 @Override 14 public void Call() { 15 // TODO Auto-generated method stub 16 System.out.println( phoneName+"‘s Call."); 17 } 18 19 }
1 public class iPhone extends MobilePhone{ 2 3 public iPhone() { 4 // TODO Auto-generated constructor stub 5 phoneName="iPhone"; 6 } 7 8 @Override 9 public void SendMessage() { 10 // TODO Auto-generated method stub 11 System.out.println( phoneName+"‘s SendMessage." ); 12 } 13 14 @Override 15 public void Call() { 16 // TODO Auto-generated method stub 17 System.out.println( phoneName+"‘s Call."); 18 } 19 20 }
3、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 }
4、分别创建具体装饰类Bluetooth、GPS、Camera。
1 public class Bluetooth extends Decorator{ 2 3 public Bluetooth(MobilePhone mobilePhone) { 4 super(mobilePhone); 5 // TODO Auto-generated constructor stub 6 } 7 8 public void Connect() 9 { 10 System.out.println( phoneName+"增加蓝牙功能。" ); 11 } 12 }
1 public class GPS extends Decorator{ 2 3 public GPS(MobilePhone mobilePhone) { 4 super(mobilePhone); 5 // TODO Auto-generated constructor stub 6 } 7 8 public String Location; 9 }
1 public class Camera extends Decorator{ 2 3 public Camera(MobilePhone mobilePhone) { 4 super(mobilePhone); 5 // TODO Auto-generated constructor stub 6 } 7 8 public void VideoCall(){ 9 System.out.println(phoneName+"增加视频电话功能。"); 10 } 11 }
5、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 }
输出结果看是否符合要求：
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原文地址：http://www.cnblogs.com/RoyalBob/p/5084530.html
