I do not know if the Self Study Training "completely encompasses" Exam Simulator but it does say it has 7 full length mock exams. I think that should suffice.
I have not used Self Study Training. But I have used Exam Simulator when I was preparing for my certifications. Exam simulator was pretty decent. For subject matter, I used Kathy Sierra and Bert Bates book and some other complete
java reference book. I also practised coding using different concepts on netbeans installed in my system. But in the end, whatever suits you ! All the best
