代码同步优化

 1 class Res
 2 {
 3     private String name;
 4     private String gender;
 5     private boolean flag;
 6
 7     //根据面向对象的原则，把和属性相关的功能写在类中。
 8     //存入数据
 9     public synchronized void set(String name,String gender)
10     {
11         if(flag)
12         {
13             try{wait();}catch(InterruptedException e){e.printStackTrace();}
14         }
15         this.name = name;
16         this.gender = gender;
17         flag = true;
18         notify();
19     }
20
21     //输出数据
22     public synchronized void out()
23     {
24         if(!flag)
25         {
26             try{wait();}catch(InterruptedException e){e.printStackTrace();}
27         }
28         System.out.println(name + "....." + gender);
29         flag = false;
30         notify();
31     }
32 }
33
34 //输入任务
35 class Input implements Runnable
36 {
37     private Res res;
38     public Input(Res res)
39     {
40         this.res = res;
41     }
42     public void run()
43     {
44         int i = 1;
45         while(true)
46         {
47             if(i==1)
48                 res.set("猪小明","男");
49             else
50                 res.set("腿腿","女");
51             i = (++i)%2;
52         }
53     }
54 }
55
56 //输出任务
57 class Output implements Runnable
58 {
59     private Res res;
60     public Output(Res res)
61     {
62         this.res = res;
63     }
64     public void run()
65     {
66         while(true)
67         {
68             res.out();
69         }
70     }
71 }
72
73 class Demo
74 {
75     public static void main(String[] args)
76     {
77         Res res = new Res();
78         Input input = new Input(res);
79         Output output = new Output(res);
80
81         new Thread(input).start();
82         new Thread(output).start();
83
84     }
85 }
86