水池进水和出水两个线程问题

 1 /*
 2  作业1：有一个水池，水池的容量是固定 的500L,一边为进水口,一边为出水口.要求,进水与放水不能同时进行.
 3  水池一旦满了不能继续注水,一旦放空了,不可以继续放水. 进水的速度5L/s ,  放水的速度2L/s  
 4  */
 5 
 6 class Pool {
 7 
 8     int capacity = 0;
 9 
10 }
11 
12 class Inlet extends Thread {
13 
14     Pool p;
15 
16     public Inlet(Pool p) {
17         this.p = p;
18     }
19     
20     @Override
21     public void run() {
22         while(true){
23             synchronized (p) {
24                 if((p.capacity + 5) <= 500){
25                     System.out.println("进水中,水池容量为:"+(p.capacity + 5));
26                     p.capacity += 5;
27                     p.notify();
28                 }else{
29                     System.out.println("水池水满了");
30                     try {
31                         p.wait();
32                     } catch (InterruptedException e) {
33                         e.printStackTrace();
34                     }
35                 }
36             }
37         }
38     }
39 
40 }
41 
42 // 出水
43 class Outlet extends Thread {
44 
45     Pool p;
46 
47     public Outlet(Pool p) {
48         this.p = p;
49     }
50     
51     @Override
52     public void run() {
53         
54         while(true){
55             synchronized (p) {
56                 if((p.capacity - 2) >= 0){
57                     System.out.println("水池出水中,水池容量为:"+(p.capacity - 2));
58                     p.capacity -= 2;
59                     p.notify();
60                 }else{
61                     System.out.println("水池没水了");
62                     try {
63                         p.wait();
64                     } catch (InterruptedException e) {
65                         e.printStackTrace();
66                     }
67                 }
68             }
69         }
70     }
71 
72 }
73 
74 public class Zuoye1 {
75 
76     public static void main(String[] args) {
77         Pool p = new Pool();
78         Inlet in = new Inlet(p);
79         Outlet out = new Outlet(p);
80         in.start();
81         out.start();
82 
83     }
84 
85 }