Differentiate between GenericServlet and HttpServlet
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Generic Servlet |
Http Servlet |
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javax.servlet.GenericServlet(abstract class) |
javax.servlet.http.HttpServlet(abstract class) |
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It is the immediate subclass of Servlet interface |
The immediate super class of HttpServlet is GenericServlet |
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It defines a generic, protocol-independent servlet.it can be used with any protocol, say, SMTP, FTP, CGI including HTTP etc |
It defines a HTTP protocol specific servlet |
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GenericServlet is a super class of HttpServlet class. |
HttpServlet is a sub class of GenericServlet class.
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All methods are concrete except service() method. service() method is abstract method.
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All methods are concrete (non-abstract). service() is non-abstract method. service() can be replaced by doGet() or doPost() methods
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