How to retain focus in Textfield

I have one panel which contains three textfiled and one ToolBar. on clicking tool bar button certain dialog get opened.
intially foucus remained on first textfield but when i do open the dialog with tool bar button. focus doesn't get return to first textfield even focus doesn't get back to screen.
And my requirement is that to get focus on first textfield after closing the dialog.
Please let me know if you have any suggestions.
Thanks,

yeah I need to set focus again on textfield and that is my question.you can do that using something like :jTextField.requestFocus(); I am seeking the event on which i can set the focus again please suggest.If you are using JOptionPane just add the above statement after showing dialog like JOptionPane.showInputDialog("Hello");
jTextField.requestFocus();If you are using your own dialog, have a refrence to the textfield in the dialog and at 'windowClosing' Event use the mentioned statement.
I think that should work....
Thanks!

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