Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Clear and Step-by-Step THIS.

This was the textbook chosen by my educational institute to introduce us to PowerBuilder and Object-Oriented Fundamentals. I'd have to say it fails on each of those counts.You're not introduced to PowerScript until nearly halfway through the book, the code is NOT laid out in a step-by-step fashion AT ALL after the first chapter or so (and even then), there are coding errors all over the place, and the finished product that you can download has all sorts of inconsistencies with what's in the book (it's as though they kept the application the same from PowerBuilder 5 and never bothered to check the new text against it or something).I'm in the process right now of trying to reverse engineer the example from Que's website and compare my own to figure out what snippets the book has omitted that are preventing my application from functioning properly. Thank you, William Heys, for depriving me of some much-needed sleep. :P~