Chapter 3

Effectively Using Objective-C

In This Chapter

arrow Examining a simple Objective-C program

arrow Learning the elements of an Objective-C program

arrow Analyzing how Objective-C implements OO

Objective-C, the programming language used for iOS app development, bring the features of an iOS app to life. In this chapter, you use that programming language to apply the OO concepts, techniques, and principles set out in Chapter 2. By the end of this chapter, you'll understand the object-oriented features of Objective-C and be able to start writing Objective-C programs.

Note that this chapter isn't a comprehensive reference on Objective-C. You may want to check out the book Objective-C (Developer Reference), by Jiva DeVoe, which covers all of Objective-C. Also, for Apple's guide to Objective-C, check out the link labeled Apple Reference on Objective-C at www.dummies.com/go/iosprogramminglinks.

Thanks to the popularity of Apple’s devices, and according to Wired magazine, Objective-C has become the world’s third most widely adopted programming language (www.wired.com/wiredenterprise/2012/07/apple-objective-c). Not bad for what was once considered a quirky language with a cult following.

Examining ...

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