saranya sampath:
/AY-hook/docroot/WEB-INF/lib/Explico-0.1-jar-with-dependencies.jar
how to use the above jar inside my java class and where hava to put jar.
That depends on where your Java class is. As it's all custom development (including the hook and the jar you're referencing) and you don't even give the version you're working with: How should anyone know.
A quick guess is: You're using 6.x and the jar goes into your Java class' plugin's WEB-INF/lib folder.
