If you’ve read our Java 8 books, then you know Jeanne and I spend a lot of time and care ensuring you are properly prepared for the exam. This includes deciding what information you need to know, what information you don’t need to know, and what information is nice to know... and then organizing the material in format that is easy for our readers to follow. We also write challenging review practices and practice exam questions that really test what you’ve learnt. If you can score high on one of our practice exams, you should have no trouble passing the real exam.
Finally, Jeanne and I are always available here if you have any questions or want to send us feedback. We are always looking for ways to improve the material!