The remaining 5% was from Oracle tutorial and other blogs to better understand "default constructor" auto-generation and auto-calling and also "default access" members (Protected Private).
I did the tests after each chapter, revised all missed answers and continue to next chapter. At the end, I did one of the Sybex web site mock exam and only got 66%. So I studied again each questions' choices one by one using the well explained answers. After, I did another mock exam with a result of 76% that time. Again, I reviewed all answers, right or wrong and read again the whole book (skipping section 6 about Exceptions which is quite easy).
This whole process took me roughly 60 hours of time. I went to the exam less than one day after the one I finished studying everything. Everything was still fresh in my memory.
I passed the exam with a surprising 76% percent despite missing time to answer all questions; I was way too fancy at reviewing all possible answers instead of going fast.
Many thanks to Jeanne Boyarsky and Scott Selikoff. Their tough questions in their mock tests really made the oracle exam look like a piece of cake!
Congratulations champion! Great achievement Now it's time to relax a bit and have a (well-deserved) (or 2 or 3). And if you want to spoil yourself have a Belgian beer, our beers are the best of the world
Thanks for sharing your experiences. Other ranchers will definitely benefit! Have a cow!