Servlet Life Cycle

- The life cycle of servlet is:
   + create servlet class.
   + Instantiation and loading.
   + Innitailization init() method.
   + Allocating client reques to servlet.
   + Process client request service().
   + Destroy servlet when container feel that this servlet is not useful .After that,taking this servlet into garbage collection.

Note 1:
    + Servlet are a gereric server extension.They  run inside a java virtual machine.
    + Http servlet can generate an html page.
    + Http servlet can also be embeddes inside an html page,where it functions as a server-side include.
    + Servlet can be  chain together to produce complex effect.

Note 2:
    + In servlet, you realize that you don't find anywhere that have "new" keyword to create servlet object.So how servlet is created.In java web, programmer don't have to create servlet object,but server will create servlet object for you.
    + Server have purpose for helping you managing all resource.it mean that it creat,edit,deletle information .And by using server,you can develop a application more safety ,and the components run faster.