O'Reilly logo

Sams Teach Yourself Xcode® 4 in 24 Hours by William Ray, John Ray

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Hour 2. Just Enough Objective-C and Cocoa

What You’ll Learn in This Hour:

What Objective-C is

The Objective-C terminology

How to create classes, categories, and protocols

Basic programming concepts

The purpose of Cocoa and Cocoa Touch

This hour provides a glimpse of what it means to code for OS X and iOS. Both OS X and iOS share a common development environment and, with them, a common development language: Objective-C.

Objective-C provides the syntax and structure for creating applications on Apple platforms. For many, learning Objective-C can be daunting, but with patience, it may quickly become the favorite choice for many development projects. This hour takes you through the steps you need to know to be comfortable with Objective-C ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required