Different ways to develop servlets?

How can you develop a servlet?

                            (OR)

      What are different ways to develop servlets?

Every servlet is a java class.There are 3 ways to develop a servlet based on servlet-API.

 1.Take a public java class implementing javax.servlet. servlet interface & provide implementation for all the 5 methods of that interface.

 2. Take a public java class extending from javax.servlet. Generic servlet &provide implementation for abstract method called service(servlet request, servlet response) method.

 3. Take a public java class extending from javax.servlet.http servlet &override either one of the                 7 doxxx() methods (or) one of the two service ()methods.