What is Servlet
The main purpose of servlet is development of web applications.Servlet is a java based program and executes in j2ee servers.Create dynamic web pages using Servlet, Servlet is secure.It is platform-independent.
In Servlet web pages would be generated on server side based on the request made by client.
Efficient and scalable
Servlet Life Cycle
The Servlet life cycle have four steps:
The Servlet was created by Sun Microsystems, with version 1.0 finalized in June 1997.