Do u hav any idea on JScrollPane.
I want to add listener for scroll ,i.e., I hav to know what & where user has clicked in scrollpane(up arrow, down arrow or in between).

Or anything like scroll which would be comfortable for such usage?
Pls let me know, if any idea.

I have never used JScrollPane, but I believe that the "listener" functionality you want is provided in the default functionality of a scroll pane. Do you need to know where the user has clicked for some other reason than to scroll around the pane? If so, I think you should just add a MouseListener?

Here is a link to the sun tutorial on JScrollPanes.