update JLabel in Java Application

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I have a JFrame and a label in it.
on button click i have a loop and thread.sleep(100) and I want to show the value of the label in each loop. However the text label is showing the same until the loop is finished and then displaying the final result of the label.
How can I solve this?

Posted 4-Jun-13 0:02am

missak boyajian

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Prasad Khandekar 4-Jun-13 6:28am

That's the expected behavior in Swing. For this to work correctly you can use SwingUtilities.invokeLater( Runnable ) or
SwingUtilities.invokeAndWait( Runnable ) so that it will be done on the same thread that Swing itself uses. Even though
you will be using Runnable, you don't have the overhead of actually creating a new Thread since you are just calling the run method on the already existing Swing thread.

Regards,

AlphaDeltaTheta 4-Jun-13 12:19pm

Should be a solution, and you deserve my +5!

missak boyajian 4-Jun-13 14:37pm

Hey can you please show a simple example of how it works?

AlphaDeltaTheta 4-Jun-13 23:05pm

This question is poorly documented... some code?

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TorstenH. · Answer 1 · 2013-06-04T21:08:00

Solution 1

We do not provide code.

Check this example: http://www.java2s.com/Code/JavaAPI/javax.swing/SwingUtilitiesinvokeLaterRunnabledoRun.htm[^]

and develop. Cuase that's what developers do.

Posted 4-Jun-13 21:08pm

TorstenH.