Java 6 Illuminated: An Active Learning Approach, 2nd Edition

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Define instance variables of

a class as private so that

only methods of the class

will be able to set or

change their values.

SOFTWARE

ENGINEERING TIP

374 CHAPTER 7 Object-Oriented Programming,Part 2: User-Defined Classes

class or member can be accessed by methods in classes that are in the same

package. Later in the chapter, we will learn how to create our own package.

We’ll defer discussing the protected access modifier until Chapter 10, where we

cover inheritance.

Typically, the accessModifier for a class will be public, and we know that a public

class must be stored in a file named ClassName.java where ClassName is the

name of the class. Not all classes ...