Thead线程间通信

 1 public class Noodle {
 2     String noodle;
 3     String seasoning;
 4     boolean flag = false;
 5 }
 6 
 7 
 8 public class Cook extends Thread {
 9 
10     private Noodle noodle;
11 
12     public Cook(Noodle noodle) {
13         this.noodle = noodle;
14     }
15 
16     @Override
17     public void run() {
18         int count = 0;
19         while (true) {
20             synchronized (noodle) {
21                 if (noodle.flag == true) {
22                     try {
23                         noodle.wait();
24                     } catch (InterruptedException e) {
25                         e.printStackTrace();
26                     }
27                 }
28 
29                 System.out.println("Cooker start cook noodles !");
30                 if (count % 2 == 0) {
31                     noodle.noodle = "粗面";
32                     noodle.seasoning = "牛肉";
33                 } else {
34                     noodle.noodle = "细面";
35                     noodle.seasoning = "脆臊";
36                 }
37                 count ++;
38                 System.out.println(noodle.seasoning + noodle.noodle);
39 
40                 try {
41                     Thread.sleep(3000);
42                 } catch (InterruptedException e) {
43                     e.printStackTrace();
44                 }
45                 noodle.flag = true;
46                 noodle.notify();
47                 System.out.println("ready eat noodles ！" + noodle.seasoning + noodle.noodle);
48             }
49 
50 
51         }
52     }
53 }
54 
55 
56 
57 public class Customer extends Thread {
58 
59     private Noodle noodle;
60 
61     public Customer(Noodle noodle) {
62         this.noodle = noodle;
63     }
64 
65     @Override
66     public void run() {
67          while (true) {
68              synchronized (noodle) {
69                  if (noodle.flag == false) {
70                     try {
71                         noodle.wait();
72                     } catch (InterruptedException e) {
73                         e.printStackTrace();
74                     }
75                 }
76                 System.out.println("start eat nooodles ！");
77                 System.out.println(noodle.seasoning + noodle.noodle);
78                  noodle.flag = false;
79                 noodle.notify();
80                 System.out.println("noodles none ...");
81             }
82          }
83     }
84 }
85 
86 
87 
88 public class TheadTest {
89 
90     public static void main(String[] args) {
91         Noodle noodle = new Noodle();
92         new Cook(noodle).start();
93         new Customer(noodle).start();
94     }
95 
96 }