how to add pop up menu on the column name of a jtable

hi all, i am naive to swing .i want to know that how can i open a pop up menu on the right click of the column of a jtable build in frame.i mean to say i on th eright click on the header of table which has column names.
[240 byte] By [panna_worlda] at [2007-11-26 16:52:42]
# 1
[url http://java.sun.com/docs/books/tutorial/uiswing/components/menu.html#popup]How to Use Popup Menus[/url].
camickra at 2007-7-8 23:20:24 > top of Java-index,Desktop,Core GUI APIs...