Hey Ash. Welcome to the JavaRanch!
We're super-happy to see you anxious to sit the exam, but there are two things you need to do to get the best answers. First, don't cross post, because that just confuses everyone, and nobody knows where to answer your questions. Secondly, don't 'hijack' threads that don't deal with your particular question.
https://coderanch.com/forums/forums/posts/reply/0/500447
So, try posting it as a new questions and see what happens. And better yet, use the search feature on the site, as I'm pretty sure that question has been answered before.
Good luck!