Kethams
Answered On : Dec 14th, 2006
To prevent creating of objects
Login to rate this answer.
Deepak Sharma
Answered On : Dec 19th, 2006
GenericServlet r abstract because no one can instansiate the object and it is a parent class for servlet.
thanx
Login to rate this answer.
Rahul Gupta
Answered On : Dec 20th, 2006
GenericServlet class is abstract because there is a method called service() which is public abstract void. and service() must be override, service() method defines what type of protocol is used for request. another thing is that according to Java specifiation those classes have abstract methods must declared abstract.abstract methods have no body only prototype.
1 User has rated as useful.
Login to rate this answer.
wrushasen dakhane
Answered On : Dec 20th, 2006
Also I would like to add one thing that, if in future some body wants to access it with some other protocol type then by extending the class it is quite possible.
Login to rate this answer.
A.Naresh Kumar Reddy
Answered On : Jan 8th, 2007
GenericServlet is a convenient abstract class for defining Servlets. Servlets which need more control than HttpServlet can extend GenericServlet.
To write a generic servlet, you need only override the abstract service method.
For that reason GenericServlet is an abstract class
Login to rate this answer.
According to OOPs concept there has to be some point or abstraction, above which one can extends his/her functionallity as per requirement. GenericServlet provides the common architecture above which one can design his/her servlet as per requirement, henceforth no object creation is allowed for the GenericServlet.
Login to rate this answer.
A.Naresh Kumar Reddy
Answered On : Mar 8th, 2007
GenericServlet is a convenient abstract class for defining Servlets. Servlets which need more control than HttpServlet can extend GenericServlet.
To write a generic servlet, you need only override the abstract service method.
For that reason GenericServlet is an abstract class
Login to rate this answer.
GenericServlet is an abstract class because its upto the user how he wants it to use the life-cycle methods of the servlet and also the server needs to make sure that all the life cycle methods of the servlets have to be implemented.So if a class is extending GenericServlet it is bound to implement all of its abstract all of its methods.
If we had made GenericServlet a non-abstract class then user is not forced to implement all the life cycle methods.Also there are many protocols so in future an new protocol comes up it has just to override these methods.
Dhruv
Login to rate this answer.
Avijit Chowdhury
Answered On : Nov 10th, 2011
when you are overriding any abstract class, you have to override all the methods of that class.
Login to rate this answer.
