Section 1. Objective-C and the Cocoa Frameworks
This is a book about writing software for Mac OS X using the Cocoa frameworks. As far as the typical Cocoa developer can tell from looking at the Cocoa headers, the Cocoa frameworks are written entirely in the Objective-C programming language. Likewise, the application that forms the heart of this book is written almost exclusively in Objective-C.
Although Objective-C was inspired by the object-oriented concepts of the Smalltalk language, Objective-C is in fact the C language with a very small amount of object-oriented syntax grafted onto it. Objective-C is a strict superset of C, which means that the Objective-C compiler can compile all proper C programs. You will see as you progress through this ...
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