Please find the detailed answer to your question here.
http://www.angelikalanger.com/GenericsFAQ/FAQSections/ParameterizedTypes.html#FAQ104 This site is also a very good reference for all your generics related doubts.
thanks,
Megha
[ May 12, 2007: Message edited by: megha joshi ]
[ May 12, 2007: Message edited by: megha joshi ]
[ May 12, 2007: Message edited by: megha joshi ]