JAVA中的多线程

Posted 2020-09-24 零EVA

生产者消费者

 1 class Resource
 2 {
 3     private String name;
 4     private int count = 1;
 5     private boolean flag = false;
 6     
 7     public synchronized void set(String name)
 8     {
 9         while(flag)
10             try{this.wait();}catch(Exception e){}
11         this.name = name+"--"+count++;
12         System.out.println(Thread.currentThread().getName()+"...生产者..."+this.name);
13         flag = true;
14         this.notifyAll();
15     }
16     
17     public synchronized void out()
18     {
19         while(!flag)
20             try{this.wait();}catch(Exception e){}
21         System.out.println(Thread.currentThread().getName()+"...消费者..."+this.name);
22         flag = false;
23         this.notifyAll();
24     }
25 }
26 
27 class Producer implements Runnable
28 {
29     private Resource res;
30     
31     Producer(Resource res)
32     {
33         this.res = res;
34     }
35     
36     public void run()
37     {
38         while(true)
39         {
40             res.set("+TT+");
41         }
42     }
43 }
44 
45 class Customer implements Runnable
46 {
47     private Resource res;
48     
49     Customer(Resource res)
50     {
51         this.res = res;
52     }
53     
54     public void run()
55     {
56         while(true)
57         {
58             res.out();
59         }
60     }
61 }
62 class ProducerCustomerDemo
63 {
64     public static void main(String[] args)
65     {
66         Resource r = new Resource();
67         
68         Producer pro = new Producer(r);
69         Customer con = new Customer(r);
70         
71         Thread t1 = new Thread(pro);
72         Thread t2 = new Thread(con);
73         
74         t1.start();
75         t2.start();
76     }
77 }

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