I have my Java SE 8 exam scheduled next month. I am referring OCA/OCP 7 (K&B) along with Java SE 8 for really impatient. Since it is the OCA exam, do i need to study in depth the concepts of Java 8? Also i have a difficulty in finding mock tests on Java 8. Can anyone please tell me few tips on preparing effectively for this exam?
The OCA part of Kathy and Bert's book plus learning about Java 8 Dates and Predicates is good for the exam. There aren't many materials out for OCA 8 yet. In fact the exam itself isn't out yet. (the beta just finished) So you'll be one of the first people to take it.
The good news is that the more complicated parts of functional programming are out of scope for the OCA 8 exam.
You can use the mock tests for OCA 7. Most of the topics are the same.