Arrays - Java Software Solutions: Foundations of Program Design - page 386

LISTING 8.2 continued

Enter number 5: 72.404
Enter number 6: 34.8
Enter number 7: 63.41
Enter number 8: 45.55
Enter number 9: 69.0
Enter number 10: 99.18
The numbers in reverse order:
99.18 69.0 45.55 63.41 34.8 72.404 29.06 53.5 48.9 18.36

The LetterCount example, shown in Listing 8.3, uses two arrays and a String
object. The array called upper is used to store the number of times each uppercase
alphabetic letter is found in the string. The array called lower serves the same
purpose for lowercase letters.
Because there are 26 letters in the English alphabet, both the upper and lower
arrays are declared with 26 elements. Each element contains an integer that is
initially zero by default. The for loop scans through the string one character at
a time. The appropriate counter in the appropriate array is incremented for each
character found in the string.

LISTING 8.3

//********************************************************************
// LetterCount.java Author: Lewis/Loftus
//
// Demonstrates the relationship between arrays an strings.
//********************************************************************

import java.util.Scanner;

public class LetterCount
{
//-----------------------------------------------------------------
// Reads a sentence from the user and counts the number of
// uppercase and lowercase letters contained in it.
//-----------------------------------------------------------------
public static void main (String[] args)
{
final int NUMCHARS = 26;