JAVA学习--接口的应用：代理模式

 1 public class TestProxy {
 2     public static void main(String[] args) {
 3         Object obj = new ProxyObject();
 4         obj.action();
 5     }
 6 }
 7 
 8 interface Object{
 9     void action();
10 }
11 //代理类
12 class ProxyObject implements Object{
13     Object obj;
14     
15     public ProxyObject(){
16         System.out.println("代理类创建成功");
17         obj = new ObjctImpl();
18     }
19     
20     public void action(){
21         System.out.println("代理类开始执行");
22         obj.action();
23         System.out.println("代理类执行结束");
24     }
25 }
26 //被代理类
27 class ObjctImpl implements Object{
28 
29     @Override
30     public void action() {
31         System.out.println("=====被代理类开始执行======");
32         System.out.println("=====具体的操作======");
33         System.out.println("=====被代理类执行完毕======");
34         
35     }
36     
37 }