

Series: Head First
Paperback: 688 pages
Publisher: O'Reilly Media; 2nd edition (February 19, 2005)
Language: English
ISBN-10: 0596009208
ISBN-13: 978-0596009205
Product Dimensions: 8 x 1.5 x 9.2 inches
Shipping Weight: 3.1 pounds (View shipping rates and policies)
Average Customer Review: 4.3 out of 5 stars See all reviews (562 customer reviews)
Best Sellers Rank: #3,245 in Books (See Top 100 in Books) #1 in Books > Computers & Technology > Programming > Languages & Tools > Java #1 in Books > Computers & Technology > Programming > Software Design, Testing & Engineering > Object-Oriented Design #1 in Books > Textbooks > Computer Science > Object-Oriented Software Design

I really wanted to like this book. I bought the Head First book on design patterns and love it. It was the right mix of irreverance and information. So, I bought this book even though I have been a Java developer for over 5 years. I was excited to see how the Head First authors handled a beginners book for Java.Not too well, in my opinion. Chapter Three, in particular, was a mess. This chapter introduces the notion of variables yet never explains what an integer variable is. No explanation is given of the float type. We are told that a byte holds 8 bits...but not told what a bit is. We are not told how to assign a hexadecimal value to an int. We are not told that if we assign a numeric value with a leading zero...the compiler will assume that you meant to use octal values. The reader is not told that Strings are immutable. These are all things that will trip up a beginner (the target market for this book). The author of this chapter doesn't even bother to mention that a Java array uses a zero-based index.Both primitives and the notion of classes are introduced in Chapter Three. Yet, the author doesn't mention that all primitives (except boolean) have wrapper classes. Strings are introduced...but, no mention is made of the StringBuffer or StringBuilder (very useful and often used classes). These items are included in the back of the book in Appendix B.There are so many things left out that I wonder if the publisher actually had any beginners read this book. Readers of this book will finish this book still ignorant of many Java essentials.Here is one of their dumbed-down explanations for an object reference:"Think of a Dog reference variable as a Dog remote control. You use it to get the object to do something (invoke methods).
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