What Is Objective-C?
So what exactly is Objective-C? Simply put, Objective-C is the main programming language used to develop iPhone and iPad apps. To get a better handle on how to use the language, you first need to know how the iPhone OS works under the hood.
Objective-C is an object-oriented programming language built on top of C. Objective-C is the primary language used to build both Mac OS X and iPhone OS applications.
Cooking with Cocoa
One of the main reasons iPhone and iPad are such powerful devices is that they share much in common with Mac OS X. Instead of writing a completely new operating system for the phone, Apple ...