Hi friend,
It's normally very difficult to answer very broad open questions like these. Have you tried searching the web for the info that you want?
It's usually a good idea to look around for the info first, using the documentation and/or the Web, digesting the info, and narrowing down the questions to specific topics that you find to be of interest but are proving to be particularly stubborn.
Anyway, a good starting point for these
Java technologies would be
Sun itself:
j2ee jndi jms [ August 04, 2002: Message edited by: Anthony Villanueva ]
