Sams Teach Yourself Mac OS® X Lion™ App Development in 24 Hours

Hour 3. Introducing Objective-C

What you’ll learn in this hour:

• History of Objective-C

• Doing Some Basic Math

• Using Strings

• Understanding Pointers and Equality

• Passing Messages

• Controlling Program Flow with Loops and Conditionals

It used to be that developers who wrote code in Objective-C were a small, elite group. These programmers wrote code for the Mac, building applications for a desktop OS that had very small market share and even smaller profit potential.

Today, thanks to the increasing popularity of the iPhone, iPod Touch, and the iPad, Objective-C’s popularity is on the rise. Everyone from hobbyists to scientists to commercial developers and consultants are building applications for iOS using Objective-C.

During this hour ...