What is the difference between GenericServlet, HttpServlet and a Servlet?

Question

I was searching for exact difference between javax.servlet.http.HttpServlet , javax.servlet.GenericServlet and javax.Servlet unable to

Answer 1

-->GenericServlet can process multiple clients request from a single form. Whereas, HttpServlet can process multiple clients requesting from multiple HTML forms.

--> GenericServlet is Stateless and HttpServlet is Stateful.