Simple chat application in java using JMS(Java messaging Service)

Simple chat application in java using JMS(Java messaging Service)

To implement chat application where i have to write java code using
JMS(Java Messaging Service) API?(in .java file(Which has main()) or in
Servlet?). Do i need to write configuration file like web.xml?
I'm using IBM Rapid Application Developer V8.5 as IDE. So how to configure
Connectionfactory and queues in Websphere Application Server8.5.
I need to use Default Messaging Provider as JMS Provider instead of
Websphere MQ Messaging provider and design model should be Point to Point
Model.
Please help me to solve the questions.Thank you.