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

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An array’s data type can be

any primitive type or any

predefined or user-defined

class.The important thing

to remember is that each

element of an array with a

class data type is a refer-

ence to the object;it is not

the object itself.

SOFTWARE

ENGINEERING TIP

8.1 Declaring and Instantiating Arrays 465

8.1 Declaring and Instantiating Arrays

In Java, arrays are implemented as objects, so creating an array takes two steps:

1. Declaring the object reference for the array.

2. Instantiating the array.

In arrays of primitive types, each element in the array contains a value of

that type. For example, in an array of doubles, each element contains a dou-

ble value. I ...