Cocoa® Programming

Chapter 4. Objective-C

IN THIS CHAPTER

• Why Learn Objective-C?

• Additions to C

• Apple’s Extensions

• The NSObject Base Class

• Runtime Functions

• Objective-C++

This chapter introduces the Objective-C language, and explains how Objective-C represents the concepts of object-oriented programming that were described in Chapter 2, “Cocoa Language Options.” This book focuses on intermediate and advanced techniques that unleash the power of Cocoa; as a result, there is only room for a brief introduction to Objective-C. The information presented in this chapter and the next is sufficient for an experienced C++ or Java programmer to become immediately productive with Objective-C. Familiarity with C and at least one object-oriented language is a prerequisite for this ...