join

1. /**
2. *@(#)TestJoin.java
3. *
4. *
5. *@author
6. *@version1.002008/10/10
7. */
10. publicclassTestJoin{
12. publicTestJoin(){
13. }
16. publicstaticvoidmain(String[]args)
17. {
18. MyThreadt1=newMyThread("thread1");
19. MyThreadt2=newMyThread("thread2");
20. t1.start();t2.start();
21. try
22. {
23. t1.join();//把t1加入主线程中，所以main一定出现在thread1之后
25. }catch(InterruptedExceptione){}
26. for(inti=0;i<10;i++)
27. {
28. //if(i==5)
29. //t2.interrupt();
31. System.out.println("main");
32. }
33. }
34. }
35. classMyThreadextendsThread
36. {
37. MyThread(Strings)
38. {
39. super(s);
40. }
41. publicvoidrun()
42. {
43. for(inti=1;i<=100;i++)
44. System.out.println(getName());
45. try
46. {
47. sleep(1000);
48. }catch(InterruptedExceptione)
49. {
50. return;
51. }
52. }
53. }

output:

thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2

thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread2
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
thread1
main
main
main
main
main
main
main
main
main
main