1 package cn.mayday.test;
2
3 public class JoinTest {
4
5 public static void main(String[] args) {
6
7 try {
8
9 int count = 50
;
10 // while (count > 1) {
11
12 Thread thread1 =
new Thread(
13 new Runnable() {
14 public void run() {
15
16 try {
17 System.out.println("+++++ 1111 start ++++"
);
18 Thread.sleep(10000
);
19 System.out.println("+++++ 1111 end ++++"
);
20 }
catch (Exception e) {
21 System.out.println("Exception 1111 = " +
e);
22 }
23 }
24 }
25 );
26 thread1.start();
27
28
29 Thread thread2 =
new Thread(
30 new Runnable() {
31 public void run() {
32 try {
33 System.out.println("+++++ 2222 start ++++"
);
34 Thread.sleep(10000
);
35 System.out.println("+++++ 2222 end ++++"
);
36
37 }
catch (Exception e) {
38 System.out.println("Exception 2222 = " +
e);
39 }
40 }
41 }
42 );
43 thread2.start();
44
45 thread1.join();
46 System.out.println("++++++++++++ thread1111 join end ++++++++++++"
);
47
48 thread2.join();
49 System.out.println("++++++++++++ thread2222 join end ++++++++++++"
);
50
51
52 Thread.sleep(1000
);
53 // }
54
55 }
catch (Exception e) {
56 System.out.println("Exception = " +
e);
57 }
58
59 }
60 }
【总结】：从结果可以看出，主线程在线程1和线程2 join本身不阻塞，当时需要main线程做得动作全部阻塞
摘自
转载于:https://www.cnblogs.com/snowwhite/p/11099195.html
