Programming in Objective-C 2.0

This book is fantastic for beginning programers. I have a little bit of experience with C, and programming in other languages, but am completely ignorant when it comes to Objective-C. Kochan had me understanding complex subjects in minutes. The analogies used in this book are very clear--using the analogy in this book, I explained how classes work to my wife (whose eyes glaze over when programming is mentioned) and she understood it well. Another thing the author does well is avoiding overburdening the reader with too many concepts at once. Frequently, the explanations for complex concepts that are not totally relevant to the task at hand are deferred until a later section in the book. This helps you grasp the simple things early on, without feeling overwhelmed. You are then prepared when things get more complex. If you are a Kindle owner, you'll be happy to know that the conversion to Kindle has been done flawlessly. When important concepts are referred to, or previous examples mentioned, they are always linked for a quick click back or forward to the relevant location. Images and tables are rendered nice and large, and easy to read. One of the best Kindle formatting jobs I have ever seen. I fell in love with Objective-C almost immediately after starting this book. Those new to programming or Objective-C will find a lot to love here.

Note: Typos have been fixed since the edition I originally purchased. I've kept my original review below, which was influenced by the number of typos and formatting glitches I encountered in the original edition. Now that it's all been rectified, there is NO BETTER BOOK for learning Objective-C 2.0 than this book. *** ORIGINAL REVIEW (noted deficiencies corrected in updated revisions) *** I'd love to recommend this book as the gateway to learning to program Mac OS X applications, but unfortunately I cannot. It contains more than a few typographical errors, especially in the first few chapters. Those new to programming in C may end up confused and unable to understand why their programs will not compile. This is unacceptable for this type of book. Beyond typos, my second gripe is the lack of exercise solutions. This book provides challenging exercises at the end of each chapter that are designed to hone your skills and solidify your understanding of taught topics. Frustratingly, there does not seem to be a source containing exercise solutions. None are found in the book, and surprisingly -- nothing is offered on the book's web page either. Nada. Learning is difficult when you cannot check your solution against the author's intended solution. My surmise is to blame the editors -- someone unaccustomed to working on programming/technical books likely did the final layout. I learned C Programming over 20 years ago, thanks in large part to Stephen G. Kochan's original 1988 masterpiece, "Programming In C." I picked up his latest book looking to master my Objective-C programming skills. Personally, I accomplished my goals -- but only because I have a 20+ year history of programming in C (and many other languages). Those new to the language may have to hobble through typos. This book (minus typos) does an excellent job teaching you Objective-C 2.0. Knowing ObjC is a prerequisite to learning the Cocoa framework for Mac OS X. Final thoughts: TWO to THREE STARS for those new to programming. Don't frustrate yourself with typos and lack of solutions to chapter exercises. FOUR to FIVE STARS for experienced C/C++ developers looking to jump to Objective-C 2.0. NOTE: Those giving FIVE STAR reviews to this book knowing that it contains typos are not providing any service to those who are new to programming. What good is it to reward a publisher for poor performance? With any luck, the publisher will fix future versions.

I had heard about Kochan's reputation for writing clear and concise books, so I was anxiously awaiting the release of the second edition of what has been recommended to me as THE book to learn Objective-C from. I was certainly not disappointed. I was able to work through this book in a week's time and even write my first iPhone application, just from the material presented in this text. Kochan methodically teaches the mechanics of the language, followed by the Foundation Framework, and then the iPhone SDK. In the last chapter on the iPhone, Kochan shows how to use two of the classes taught in the book (a calculator class and a fraction class) to develop a fraction calculator that runs on the iPhone. I was able to get the program running on the iPhone simulator that comes with the iPhone SDK. You should note that there was a mistake in listing some of the code for this example. I contacted the author and he was aware of the error. He mentioned that all the code, the answers to the exercises, and the errata will be posted shortly. It's helpful to note that Kochan is active in MacRumors forums and seems to respond quickly to questions posted there as well as to the several emails I sent him. After I got the iPhone fraction calculator working, I started adding features to the calculator (some came from suggestions in the exercises at the end of the chapter), and this has greatly improved my understanding of how everything works and how it all works together: XCode, Interface Builder, the iPhone Simulator, and Objective-C. Now I have to dive deeper into Cocoa programming and the iPhone SDK. Kochan has given me a great start to move on to one of the recommended follow-on texts with confidence and a strong footing in the language.. In my opinion, this book is the best way to learn Objective-C and a must read for prospective mac and iPhone application developers.

I am a web designer and developer and I've programmed in a lot of languages (i.e. HTML, javascript, actionscript, visual basic, etc.). I wanted to learn Objective-C as the quickly as I could. I quickly found out that not having experience in programming in C (the predecessor to Objective-C) made it hard to understand the reasoning behind the code syntax and finding resources that didn't assume I knew C was almost impossible... After going through the first three chapters of this book in less than an hour, my confidence in the language has increased exponentially. The book is roughly 624 pages, but I feel like I could code the samples and finish the book in just a few days... The book is organized into four main sections: I: The Objective-C 2.0 Language II: The Foundation Framework III: Cocoa and the iPhone SDK IV: Appendixes The separation of these main topics, Objective-C Language features and the Foundation Framework for example, almost guarantees that there won't be much confusion if you are learning the language for the first time and that there will be a distinction between the topics and concepts for each section. Kochan does a good job of creating a deep understanding of the material instead of simply saying `just write the code and we'll explain later'. For example, each chapter provides instructions on how to fulfill basic concepts using Objective-C such as writing classes, inheritance, loops, operators, etc. At the end of each chapter, there are `Exercises' which may range anywhere from 5-9, which more or less tests the reader's comprehension on the material that was just covered. I bought the Beginning iPhone Development: Exploring the iPhone SDK and Cocoa(R) Programming for Mac(R) OS X (3rd Edition) before this book and I should have done the exact opposite. This book can serve as a foolproof foundation and reference guide for either of the aforementioned books and definitely shortens the learning curve to mastery.

This book is both comprehensive and easy to understand. The sequence of chapters chosen to be read chronologically is well thought out (e.g. having the reader use static data types before introducing the generic id type, or having the reader declare and implement accessor methods before introducing the property and synthesize directives). The end of chapter exercises are also short (i.e. quick to complete) but also thoughtfully designed. The author chose to make this book serve not only as a reference, but as a tutorial. In other words, a bit like the "... for Dummies" series in its hand-holding (i.e. tutorial) style. However, this book is certainly not for "dummies" as the author does not assume the reader to be slow or requiring interjections of humor or casualness. Other books will have authors write things like "Now grab a slice of pizza before we hit this really hard subject!", but this author thankfully spares the reader of this. Kochan is concise and direct. There are very few wasted or unnecessary sentences. Kochan does not assume prior Objective-C, Cocoa framework, or X-code knowledge. However, if you have experience with just about any procedural or object-oriented language, you will have a much easier time with learning any new language, including Objective-C. If you do not have experience with ANY other language, then you will still have a difficult time with learning all of the Objective-C language as some topics just by their very nature are difficult to grasp immediately without practical experience. Although there is a chapter each on the Cocoa framework and iPhone development, this book is focused on the Objective-C language and Apple's Foundation framework. Other resources will have to be utilized to learn Cocoa or Cocoa Touch. BOOK'S TABLE OF CONTENTS: 1. Introduction 2. Programming in Objective-C 3. Classes, Objects, and methods 4. Data Types and Expressions 5. Program Looping 6. Making Decisions 7. More on Classes 8. Inheritance 9. Polymorphism, Dynamic Typing, and Dynamic Binding 10. More on variables and Data Types 11. Categories and Protocols 12. The Preprocessor 13. Underlying C Language Features 14. Introduction to the Foundation Framework Foundation Documentation 15. Numbers, Strings, and Collections 16. Working with Files 17. Memory Management 18. Copying Objects 19. Archiving 20. Introduction to Cocoa Framework Layers 21. Writing iPhone Applications 22. Appendix A. Glossary 23. Appendix B. Objective-C 2.0 Language Summary 24. Appendix C. Address Book Source Code 25. Appendix D. Resources You may also want to consider reading Apple's developers' guides: -Learning Objective-C: A Primer -Object-Oriented Programming with Objective-C -The Objective-C 2.0 Programming Language Apple's guides are not easy for a novice, but having read them before reading Kochan's book definitely made using his book significantly easier and faster for me. In summary, this book will make learning Objective-C about as easy a