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

All classes, interfaces, and methods present in the javax.servlet package are protocol independent (generic to all protocols).

In contrast, all classes, interfaces, and methods present in the javax.servlet.http package are protocol dependent (specific to the HTTP protocol)