JAVA学习--接口的应用：工厂方法的设计模式

 1 public class TestFactoryMethod {
 2     public static void main(String[] args) {
 3         IWorkFactory i = new StudentWorkFactory();
 4         i.getWork().doWork();
 5
 6         IWorkFactory i1 = new TeacherWorkFactory();
 7         i1.getWork().doWork();
 8     }
 9 }
10
11 interface IWorkFactory{
12     Work getWork();
13 }
14 class StudentWorkFactory implements IWorkFactory{
15
16     @Override
17     public Work getWork() {
18         return new StudentWork();
19     }
20
21 }
22 class TeacherWorkFactory implements IWorkFactory{
23
24     @Override
25     public Work getWork() {
26         return new TeacherWork();
27     }
28
29 }
30
31 interface Work{
32     void doWork();
33 }
34
35 class StudentWork implements Work{
36
37     @Override
38     public void doWork() {
39         System.out.println("学生写作业");
40     }
41
42 }
43 class TeacherWork implements Work{
44
45     @Override
46     public void doWork() {
47         System.out.println("老师批改作业");
48     }
49
50 }