Two Laptop Bag*
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Thread once again (Join) Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
Bookmark "Thread once again (Join)" Watch "Thread once again (Join)" New topic
Author

Thread once again (Join)

Ramnath krishnamurthi
Ranch Hand

Joined: Jan 22, 2003
Posts: 56
Hi,
I was looking at the Thread api and one of the interesting thing i have noted in join(long millisecs) method is that ,A time out of 0 means to wait forever.
I tried to test this fact using 2 scenarios and as usual i became confused.
Scenario 1:

The output is :
Am going to sleep
I woke up
I am main
Scenario 2:

The output is :
Am going to sleep
I woke up
I am main
My confusion here is:
should not that t.join(0) in the Scenario 2 makes the main thread to wait for ever and not printing the I am main at all?.
Thanks in advance for any help.
Ramnath
Feed an Opportunity.Starve a Problem


Modified title to be more informative, removed loud bangs, and added code tags...
[ April 10, 2004: Message edited by: Barry Gaunt ]
Barry Gaunt
Ranch Hand

Joined: Aug 03, 2002
Posts: 7729
The join(0) with 0 as an argument is the same as join() with no argument. The main thread will wait forever if the started thread does not complete. But the started thread does complete.


Ask a Meaningful Question and HowToAskQuestionsOnJavaRanch
Getting someone to think and try something out is much more useful than just telling them the answer.
 
jQuery in Action, 2nd edition
 
subject: Thread once again (Join)
 
Similar Threads
this and static method
Question on Thread
Doubt in Thread
Threads
static inner class