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JTree and pop up menus

 
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Hi All,
I am doing a chat application (something similar to AOL). I have a JTREE in which i have the list of friends. When I right click on a node i am displaying a pop up menu which has options
1) Add
2) Remove
3) Edit
On clicking the Edit option, I want to make the node editable. I am not able to do it. Can someone help???
-Sid
 
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Have you tried:
 
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