This book is too simple. Starts good with some introductory about the Java language, and as I was reading I was starting to like the book, but suddenly the author wasted too much time teaching you how to use the interface and all that stuff that anybody can learn by it's own. The examples are kindergarten like, and i wanted to skip many of the stuff to reach the end and finish with it. I just tried to read it because I paid for it, but it was dissapointing and I even got depressed reading it. Get a Java 1.2 book and learn from it, JBuilder is a great tool and deserves much better.