Help with servlet and JSP

I am creating a web application that allows users to submit questions and answers to a database. The users can also specify a number of questions and take a randomly generated test from the questions that have been submitted to the database. Currently, I am having trouble figuring out how to generate the test and then grade it. I was thinking I would use a question page that displayed a random question and its answers, allowed the user to answer the question and submit it, and then have the page reload with a new random question from the database. After the user has answered the number of questions they specified, then it would go to a results page with the percent and grade. I'm having trouble figuring out a servlet for the test generation. Any help would be much appreciated.
Thanks, Mike
[email protected]

Please provide more information on exactly what the problem you are having is.
For example: The following sentence you provide doesn't really say what the problem is:
" I'm having trouble figuring out a servlet for the test generation."

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