Should I override service() or doPost()?

Question

I was reading a book on servlets, in that book a brief explanation is given about the servlet class, as well as the HttpServlet class.

There is one exam

Answer 1

I think you need to understand the flow in order to decide for yourself. The default implementation of service() for an HttpServlet simply calls the appropriate handler for the request method (GET, POST, whatever).

You need to override service() when you want the same method to handle all incoming methods (no matter if it's a GET, PUT or POST request, you'll answer the same to all). If you're happy with treating each method separately, go with the default service() implementation and override the specific handlers.