Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Be careful of the copyright and license agreement!

This book has a very unusual copyright notice. By using the information in this book, you implicitly enter into an agreement with Sun microsystems where any clean room Java implementations you write, from scratch, have to be submitted to Sun for conformance testing. I did not discover this until years after I bought the book. This kind of a "contract-by-fait-accompli" is illegal and unenforceable, but it may still be a pain to deal with. I suggest the Meyer and Downing book instead, since it is unencumbered.