1-Servlet Class loading –
The class Classloader is responsible to load servlet class.It loads, when the first request for the servlet is made.
2-instantiation of class (objet creation by server) –
The servlet object is created once in the entire servlet life cycle.
3-init () –
It is called only once in the entire lifecycle.
Service() method is called every time when a request for a servlet is received.
This method is used to handle requests for the servlet.
The service() method accepts 2 parameters: a request object and a response object.
It overrides doGet() and doPost() method.
Note- (i) doGet() method — doGet() method is used to handle the get request.
(ii) doPost() method — doPost() method is used to handle the Post request.
This method is called only once in the entire life cycle of a servlet.