设计模式-外观模式

 1 class SubClass1
 2 {
 3     public void methodOne()
 4     {
 5         System.out.println("子系统方法一");
 6     }
 7 }
 8 
 9 class SubClass2
10 {
11     public void methodTwo()
12     {
13         System.out.println("子系统方法二");
14     }
15 }
16 
17 class SubClass3
18 {
19     public void methodThree()
20     {
21         System.out.println("子系统方法三");
22     }
23 }
24 
25 public class Facade {
26     SubClass1 one;
27     SubClass2 two;
28     SubClass3 three;
29     
30     public Facade()
31     {
32         one = new SubClass1();
33         two = new SubClass2();
34         three = new SubClass3();
35     }
36     
37     public void methodA()
38     {
39         System.out.println("方法组A");
40         one.methodOne();
41         three.methodThree();
42     }
43     public void methodB()
44     {
45         System.out.println("方法组B");
46         two.methodTwo();
47         three.methodThree();
48     }
49     
50     public static void main(String[] args)
51     {
52         Facade f = new Facade();
53         f.methodA();
54         f.methodB();
55     }
56 }