What's Coming Up

Objective-C is a superset of C. Objective-C begins with C, and then adds a couple of small but significant additions to the language. If you've ever looked at C++ or Java, you may be surprised at how small Objective-C really is. We'll cover Objective-C's additions to C in detail in this book's chapters:

• Chapter 2, "Extensions to C," focuses on the basic features that Objective-C introduces.
• In Chapter 3, "An Introduction to Object-Oriented Programming," we kick off the learning by showing you the basics of object-oriented programming.
• Chapter 4, "Inheritance," describes how to create classes that gain the features of their parent classes.
• Chapter 5, "Composition," discusses techniques for combining objects so they can work together.