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Programming in Objective-C, Fifth Edition by Stephen G. Kochan

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14. Introduction to the Foundation Framework

A framework is a collection of classes, methods, functions, and documentation logically grouped together to make developing programs easier. On OS X, more than 90 frameworks are available for developing applications so that you can easily work with the Mac’s Address Book structure, burn CDs, play back DVDs, play movies with QuickTime, play songs, and so on.

The framework that provides the base or foundation for all your program development is called the Foundation framework. This framework, the subject of the second part of this book, enables you to work with basic objects, such as numbers and strings, and with collections of objects, such as arrays, dictionaries, and sets. Other capabilities provide ...

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