In this tutorial, I've demostrated how URIs can be mapped to java methods using VRD. The methods that can be invoked should have one of the following signatures:public [static] (void|Object) methodName();public [static] (void|Object) methodName(HttpServletRequest); public [static] (void|Object) methodName(HttpServletRequest, HttpServletResponse);If your method returns String, the value of the String can be used to control application flow. This I shall demonstrate in next few videos.