Chapter 4. Object Oriented Programming

Programming using classes is essential to take advantage of the full power of ActionScript 3.0. By using classes, you participate in object oriented programming, a versatile way to think about and structure code. Objects are high-level building blocks, and classes are the constructs that define them. In this chapter you learn what constitutes a class, how classes relate to objects and other language constructs, and how to write a class in ActionScript 3.0.