Using Dynamic Library

Question

Hi friends,
As a newbie , one more question solution am hunting.
can we make dynamic shared library for java .
If java support dynamic library(i hope it must be) then can you people provide me just how(any link to be read or tutorial) we make and compile and use these library

Answer 1

I need my java program working like that..
when i see that i need to do remote query from USA database than i will invoke USA vendor jar file and load a class within that jar file that provide methode to query USA database.
Same i want to do for UK vendor jar file, or Indian vendor jar file. which jar file i need to invoke it should be decided runtime by looking some trigger like some specific message type.
When i was looking jar files tutorials .. they all say how to make jar file,run jar files from command line and benefities like digitally signatured .. and many others ... But i don't want to run jar files by giving command line options. i need to invoke these within java class file by looking some specific event and then want to use one of methode provided by jar's java file.
There was one more thing i came to know about JCL. So i need you people help me to point out how exactly i can do this.