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

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In a for loop,using the con-

dition:

i <= arrayName.length

will generate an ArrayIn-

dexOutOfBoundsException

because the index of the

last element of an array is

arrayName.length – 1.

COMMON ERROR

TRAP

474 CHAPTER 8 Single-Dimensional Arrays

For example, attempting to print the array using the array name will not

print all the elements of the array. Instead, this statement:

System.out.println( cellBills ); // incorrect attempt to print array!

calls the toString method of the Array class, which simply prints the name

of the object’s class and the hash code of the array name, for example,

[D@310d42.

8.3.1 Printing Array Elements

To print all elements of an ar ...