初试桥接模式-demo（开学选课）

 1 public class Student {
 2 
 3     public static void main(String[] args) {
 4         Faculty f= new Math();
 5         f.SetCourse(new BasisOfComputerEngineering());
 6         f.urriculum();
 7     }
 8 }
 9 
10 //选课
11 interface CurriculaVariable{
12     //所有课程的抽象方法
13     void urriculum();
14 }
15 //各门课程
16 class BasisOfComputerEngineering implements CurriculaVariable{
17 
18     @Override
19     public void urriculum() {
20         System.out.println("选择了计算机基础");
21     }
22 }
23 
24 //系
25 abstract class Faculty implements CurriculaVariable{
26     //系中聚合选课
27     protected CurriculaVariable cv;
28     public void SetCourse(CurriculaVariable cv) {
29         this.cv = cv;
30     }
31 }
32 //数学系
33 class Math extends Faculty{
34 
35     @Override
36     public void urriculum() {
37         System.out.println("数学系选课");
38         ((CurriculaVariable) cv).urriculum();
39     }
40     
41 }

输出为：

转载于:https://www.cnblogs.com/liang-zisong/p/7880155.html