Enthuware

I do not understand these questions

Where I can see more about it?

Thanks

When you say, "these questions", I am assuming you mean a lot of questions in the question bank. If you are finding these difficult to understand, you need to first go through a book such as "Thinking in Java" or Head First Java and write lot of small test programs. Once you do that, it will be a lot easier for you to understand these questions.

HTH,
Paul.