mall Java program that runs within a Web server. Servlets receive and respond to requests from Web
 clients, usually across HTTP, the HyperText Transfer Protocol.

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 To implement this interface, you can write a generic servlet that extends <code>jakarta.servlet.GenericServlet</code>
 or an HTTP servlet that extends <code>jakarta.servlet.http.HttpServlet</code>.

 <p>
 This interface defines methods to initialize a servlet, to service requests, and to remove a servlet from the server.
 These are known as