(If this is a wrong thread for my topic, apologies, and feel free to route my post to the right section)

In order to assess the knowledge of a group of people (quite numerous!), I am looking for an exhaustive Java test (question/answers). Ideally I am interested to have the questions covering all aspects (language/syntax/db/...)

Can anyone help me with this ? Or maybe you have any good ideas from where I can get such a test?