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I want to monitor a task activated by a button. Do I have to use Threads?

 
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Lately I have had one similar problem on several occasions. I have button in a JFrame, with an ActionListener connected to the button. When I press this button a task will begin. Then I want to monitor this task, with a ProgressBar that pops up for example. The problem is that the button will be pressed down during the computation of the task and the progress bar will not be updated. To make this work, do I have to execute a new thread which deals with the task and updating of the progress bar?
I hope you understand my problem and have a suitable solution for it.
 
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You can find out a swingworker class in java site, which
does similar work for updating the task.Here a seperate thread is
there to update the UserInterface.
silva.
 
selvas kumars
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you can visit this link
java.sun.com/products/jfc/tsc/articles/threads/threads2.html
silva.
 
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"jockern",
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