1.Webserver is a server which can take request from user
process it and sends back the response.
It can handle multiple requests.
2.HttpServelt is a class and it can work with http protocol.
where as genericservlet is a also class but it can work with
any other protocols.
some methods and functionalities we dont have in generic servlet
which we have in the httpservlet ex- doget,dopost.etc.
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