This week's book giveaway is in the Programmer Certification forum. We're giving away four copies of OCP Oracle Certified Professional Java SE 11 Programmer I Study Guide: Exam 1Z0-815 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
I believe that I failed at 287 test mainly because I used the suggested book above. Due my bad experience, I think that it will not help you to clear the exam. Please check the thread, that I started a week ago