Using JTree with keyboard

I have split a window in two. At the left I have the JTree component and at the right it should appear a description of the selected item in the jtree. I have done this with the mouse (when I click it appears the description of the clicked item). How can I cause the same effect when a go through the jtree with the arrows?

You could try TreeSelectionListener or something.
Denis Krukovsky
http://dotuseful.sourceforge.net/

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