Arrays - Java - page 387

Display 6.16 Enumerated Type in a switch Statement

Sample Dialogue
What is your favorite flavor?
Vanilla
Classic

Sample Dialogue
What is your favorite flavor?
STRAWBERRY
I bet you said STRAWBERRY.

Sample Dialogue
What is your favorite flavor?
PISTACHIO

This input causes the program to
end and issue an error message.

Self-Test Exercise
22. Rewrite the program in Display 6.15 using a for-each loop.

6.4 Multidimensional Arrays

Two indices are better than one.

ANONYMOUS

Java allows you to declare arrays with more than one index. In this section, we describe
these multidimensional arrays.

Multidimensional Array Basics
It is sometimes useful to have an array with more than one index, and this is allowed
in Java. The following creates an array of characters called page . The array page has
two indices, the first index ranging from 0 to 29 and the second from 0 to 99 .

array
declarations

char [][] page = new char [30][100];

This is equivalent to the following two steps:

char [][] page;
page = new char [30][100];