I have developed exam simulator using
Java and Velocity. The exam simulator is web based that allows you to practice your exam with many configurable options. Registered users can also store the
test session and later try only incorrectly answered questions or all questions. The exam simulator has 550+ questions in database.
You can visit and try
SCJP questions at
http://www.certification4career.com.
I welcome your feedback.
Thanks
Nimesh