Java抽象类应用—模板方法模式

 1 package practice1;
 2 
 3 import java.util.Random;
 4 
 5 public class Test8 {
 6      public static void main(String []args){
 7          Games g=new Girl();
 8          g.play();
 9      }
10 }
11 abstract class Games{
12   public void play(){//定义一个操作中的算法骨架
13       System.out.println("准备");
14       System.out.println("开始");
15       if(result()){
16           System.out.println("赢了");
17       }else{
18           System.out.println("输了");
19       }
20   }
21   
22   public abstract  boolean result();//将一些可变部分的实现延迟到子类中
23 }
24 
25 class Girl extends Games{
26 
27     @Override
28     public boolean result() {
29         Random r=new Random();
30         return r.nextBoolean();
31     }
32     
33 }
34 class ModeGirl extends Games{
35 
36     @Override
37     public boolean result() {
38         return false;
39     }
40     
41 }