Difference between Interceptors and Filters - Is this right?

Question

I\'m researching this so that I can respond better in interviews. I\'ve been searching around for a clear and concise answer.

So far, and by all means correct me if I a

Answer 1

I think the first point is the answer, but you should probably be able to say more than just

interceptors are in struts 2 and filters are part of the Servlet API

In fact, as an interviewer, I would be expecting and hoping to here you explain exactly what the difference between the Servelt API and a web application framework, like Struts 2 is. This is actually a chance to show your understanding of the entire Java web app ecosystem and infrastructure.

Good answers might touch upon:

1. How the Struts 2 framework is implemented within a Servlet Filter.

2. What specific use cases would call for a servlet filter outside of struts 2 but within the same web application?

3. What indeed is the Servlet API, a web application, a web application framework, etc.?

Answering in way that showed your understanding of all of these topics is what there looking for, I would guess.