In the interview, for beginners, this is not a simple problem, not too much work experience, this question you are not sure, because usually who will think of such a strange problem. Even programmers who have worked for a few years don't know it, because they don't have that kind of problem. So that's really a good question for an interview.
A servlet can actually create one or more instance objects.
A servlet can produce more than one Servlet object by specifying a different <servlet-name><url-pattern> and the same <servlet-class>
A very simple question, but did you ever think of it. In the interview if you test this question, you say the above sentence, and then write an example come out, do not worry about time, even if you have a few ways not to do, it does not matter, the examiner will be your answer to the question shocked, you can answer the questions, is a how many work experience, so he will find ways to stay you, And not you begging him to stay down.