This week's book giveaway is in the OO, Patterns, UML and Refactoring forum.
We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line!
See this thread for details.
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Thread start Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
Bookmark "Thread start" Watch "Thread start" New topic
Author

Thread start

Saibabaa Pragada
Ranch Hand

Joined: Oct 24, 2010
Posts: 162
Hi, Why I am getting Runtime Exception as given below.
Stephan van Hulst
Bartender

Joined: Sep 20, 2010
Posts: 3986
    
  18

You are getting a runtime exception because you can start the thread only once. You are starting the same thread, because the getInst() method returns the same (static) Thread, regardless of what object you call it on.

The reason you are getting a stack overflow error, is because if you remove the static modifier, when the tr member is initialized, that new member will also initialize it's internal tr reference, which in turn will initialize it's initial reference, etc, etc, ad infinitum.


The mind is a strange and wonderful thing. I'm not sure that it will ever be able to figure itself out, everything else, maybe. From the atom to the universe, everything, except itself.
 
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com
 
subject: Thread start
 
It's not a secret anymore!