Instruct: Classify the given review as either positive or negative.
Query: A Complete Waste!

As an IBM consultant and very senior technical employee, I got this book and heaps of related education for free.This book is authoritative on the subject matter, and I give it credit and one star for that. Simply presented but too short I think. However, the material at hand is a complete waste. One would do far better to study and learn the material in any of the O'Reilly or other core java books, because in the real world, that's what customers need and pay their consultants for. Of course, just my opinion