Chapter 7. Classes

by Brian Keeton

In this chapter

What Are Classes?

Why Use Classes?

Classes in Java

Declaring a Class

Variables ”Defining State

Methods ”Defining Behavior

Creating an Instance of a Class

Referring to Class Elements

The Object Class

Casting and Converting Reference Types

Inner Classes

Packages

Wrapping the Primitive Types in Classes

Using the Standard Mathematical Functions

Building a UML Class Diagram

Troubleshooting