多线程实现看病Test2

 1 package com.doctor;
 2 /**
 3  * 测试类
 4  * @author jjit
 5  *
 6  */
 7 public class SeeDoctor implements Runnable{
 8 
 9     @Override
10     public void run() {
11         for(int i = 0;i<50;i++) {
12             System.out.println("特需号"+(i+1)+"正在看病！");
13             try {
14                 Thread.sleep(1000);
15             } catch (InterruptedException e) {
16                 e.printStackTrace();
17             }
18         }
19     }
20     
21 }

 1 package com.doctor;
 2 /**
 3  * 看病
 4  * @author jjit
 5  *
 6  */
 7 public class Main {
 8     public static void main(String[] args) {
 9         SeeDoctor sd = new SeeDoctor();
10         Thread tr = new Thread(sd);
11         //tr线程的优先级比Thread的优先级大
12         tr.setPriority(Thread.MAX_PRIORITY);
13         tr.start();
14         for(int i = 0;i<20;i++) {
15             try {
16                 Thread.sleep(500);
17                 System.out.println("普通号"+(i+1)+"正在看病！");
18             } catch (InterruptedException e) {
19                 e.printStackTrace();
20             }
21             if(i == 8) {
22                 try {
23                     tr.join();
24                 } catch (InterruptedException e) {
25                     e.printStackTrace();
26                 }
27             }
28         }
29     }
30 }

输出：