Describe the basics of Servlets

Describe the basics of Servlets.

- Servlets are java classes which run on a web server.

- The results produced by the servlet are viewed on a remote web server.

- Servlet is a server side component in web applications.

- The servlet performs the request / response paradigm using the web container.

- Servlets is the best alternative for CGI.

- HTTP servlets is advanced and mostly used on current web applications.

- These servlets responds to HTTP protocol requests that are being sent from a web server and returns web pages.

- Servlets container creates only one instance for each servlets.

- The requests are handled by a separate thread.

- Each thread will invoke doGet or doPost which in turn invokes the service() method where the actual servlet’s operations are authored.
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