Write all the phases defined in Servlet Life Cycle?

There are main four phases required in Servet Life Cycle. These are:

1. Servlet class Loading: On a client request of a servlet, the container first loads the class in the memory and after that calls its default no argument constructor.
2. Servlet Class Initialization: After the first phase of loading class in memory, container initiates the ServletContext object and then invokes the Init method by passing servlet Config for the servlet. This phase transforms the normal class to a servlet.
3. Request Handling: It is the phase where a servlet is ready to handle the requests. For each client request, it invokes the method service () by passing request and response object reference.
4. Removal from service: when the process stops, the container calls the destroy () method and destroy the servlet.