Instant Messaging in Java

This book leads the reader in building an IM system using the Java rogramming
language. I believe that the best way of showing how something like instant messaging is done in general is to illustrate how it is done with a particular example. Our IM system uses the Jabber protocols and architecture and we’ll cover both in depth as we build our software. Once you understand how the Jabber protocols work to create an IM system, I hope that you will be able to extrapolate your experience to build other IM systems based on Jabber or other protocols if necessary.