Hi Narain,
The best tool that you can use if you know the XML Schema is XMLBeans.
XMLBeans developed by BEA and made it opensource ... Now It is part of Apache Projects.
I too dont have much idea about all XML stuff, but for parsing and creating of XML docs you can blindly go with XML Beans... as i found it as very less time consuming tool, and very simple too.
Get Start from :
http://xmlbeans.apache.org/ Hope it will help you.
Thanks & Regards,
Prasad
[ June 02, 2005: Message edited by: krishna prasad rao veeramalla ]