How can i edit user text input on a JTextField

Example: Only allow users to type integer characters (0 - 9) into a JTextField.
I have been able to edit the JText field so that it removes (Document.remove(int,int))
a char that is not an iteger char using DocumentListeners and UndoableEditListeners to the Document.
But once I do this it will not allow me to enter anything else in the field without first
tabbing out of the field and then back in again. Am I missing something?
Using jdk1.3.1, Win 2000.
Thanks
KPotts

I think I found my answer...
http://forums.java.sun.com/thread.jsp?forum=57&thread=123433
the response from xhunterx cleared this up for me.
Thanks
KPotts

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How can i edit user text input on a JTextField

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