Preface
Objective-C is an object-oriented extension to C. You could call it “C with Objects.” If you’re reading this book, you’re probably interested in learning Objective-C so that you can write applications for Mac OS X or for iOS. But there’s another reason to learn Objective-C: It’s a fun language and one that is relatively easy to learn. Like anything else in the real world, Objective-C has some rough spots, but on the whole it is a much simpler language than other object-oriented languages, particularly C++. The additions that Objective-C makes to C can be listed on a page or two.
In the Apple world, Objective-C does not work alone. It is used in conjunction with two class libraries called frameworks. The Foundation framework contains classes ...
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