how to run multiple instances of a single application on a single tomcat.

[Deep Singh Bhau]

Hi 
 
I'm new to this mailing list. Could anyone please tell me how to run
multiple instances of application on a single tomcat. For example I have
a application A which connects to a Database X. All I want is that the
second instance of Application A should connect to a Database B.
 
Regards,
Deep