Do I need to use thread on JFrame?

[wangdong]

I have a program using JFrame as UI. On this JFrame there is a click button which allows the user to open a new JFrame. My problem is when the user is doing some update work on one of the JFrames (it normally takes 3~5 seconds), the rest of JFrames will be in a block mode. I think it because the number of JFrame is increasing, but there is only one main thread.

Is there any solution to this? or Do I have to implement this program into a multiple thread.

Thank you,

Dong

Chinese Java Faq Forum

http://www.4ugo.com/bbs/index.asp

 

[stefanwagner]

This happens if a time-consuming work is done in the event-dispatching thread.
Read more about it here:

http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html

seeking a job as java-programmer in Berlin:

http://home.arcor.de/hirnstrom/bewerbung

 

[timw]

Just be aware that if you do anything time-consuming in a separate thread, any GUI updates that process may need to do MUST be done using the Event-Dispatch thread (use either of EventQueue.invokeAndWait or EventQueue.invokeLater depending on your needs).

Tim