Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disgraceful!

I haven't read all of this book yet, but to be frankly honest, based on the few chapters on RMI that I read, this book is so riddled with errors, inconsistencies, non-compiling code and sloppiness that I don't know if I will read any more. Please don't use this book. Examples of shoddiness include: Page 120, "you will need to write Naming.rebind('hostname//ArithServer:portNumber...." WRONG!. Also, Page 115, in Java source code "public ArithImpl(String s) throws Remote Exception {" WRONG AGAIN! . The section on RMI callbacks? Just plain WRONG! Give me a break. How disappointing.