What is Servlet & Use of Servlet & Execution Methods

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Java Servlets:
* In todays world people are going for web application. Not system based application.
* To create web application we should understanding what is Servlet.

Use of Servlet:
* To Build a web application.
* This is used to handle request from the web server, process the request, produce the response and send response back to web server.

 Servlet Execution Methods:
* Client send the request to web server.
* Web server receive the request.
* Web server pass the request to corresponding server.
* Servlet process and request and produce the response.
* Servlet send the response back to web server.
* Server send the response back to client.
* Client browser display it on screen(UI).

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