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

8.3 Aggregate Array Operations 477

8.3.3 Summing the Elements of an Array

To sum the elements of the array, we again use the standard for loop, as

shown in Example 8.5.

1 /* Summing Array Elements

2 Anderson, Franceschi

3 */

4

5 import java.text.NumberFormat;

6

7 public class SummingArrayElements

8 {

9 public static void main( String []args )

10 {

11 double []cellBills = new double [6];

12 cellBills[0] = 45.24;

13 cellBills[1] = 54.67;

14 cellBills[2] = 42.55;

15 cellBills[3] = 44.61;

16 cellBills[4] = 65.29;

17 cellBills[5] = 49.75;

18

19 double totalBills = 0.0; // initialize total

20 for ( int i = 0; i < cellBills.length; i++ )

21 {

22 totalBills += cellBills[i