Praveen , there is book on UML with Rational Rose By Sybex ( BPB in India ) publishing. So , it will be helpful to you. It doesn't cover java.
The book mentioned by Thomas is covering
J2EE. This is also good book.
Other very good book on UML is by Martin Fowler. It is also only for UML.
Your Friendly Bartender
Shailesh.
[This message has been edited by shailesh sonavadekar (edited March 25, 2001).]