The document provides a Java program that counts the number of each vowel in a given string input by the user. It utilizes a switch statement to tally occurrences of the vowels 'a', 'e', 'i', 'o', and 'u'. The output displays the count of each vowel after processing the input string.

1. //*********************************************************
// VowelCount.java
//
// This program counts the number of vowels in a string
//*********************************************************
import java.util.Scanner;
public class VowelCount {
public static void main(String[] args) {
/*
* declare variables to store the number of each type of vowel
*/
int countA = 0, countE = 0, countI = 0, countO = 0, countU = 0;
Scanner scan = new Scanner(System.in);
// Get the string from the user (prompt and input)
System.out.println("Enter a string of characters:");
String str = scan.nextLine();
// format for this part:
for (int i = 0; i < str.length(); i++) {
switch (str.charAt(i)) {
case 'a':
case 'A':
countA++;
break;
case 'e':
case 'E':
countE++;
break;
case 'i':
case 'I':
countI++;
break;
case 'o':
case 'O':
countO++;
break;

2. case 'u':
case 'U':
countU++;
break;
default:
break;
}
}
/*
* Remember: 1) condition should use method for getting string length 2)
* exp (in switch) should use method for returning a character
*/
// Output results
System.out.println("Number of each vowel in the string: a: " + countA
+ " e: " + countE + " i: " + countI + " o: " + countO
+ " u: " + countU);
}
}
OUTPUT:
Enter a string of characters:
Hello! I am Finn from the land of Ooo.
Number of each vowel in the string:
a: 2
e: 2
i: 2
o: 6
u: 0
Solution
//*********************************************************
// VowelCount.java
//
// This program counts the number of vowels in a string
//*********************************************************
import java.util.Scanner;

3. public class VowelCount {
public static void main(String[] args) {
/*
* declare variables to store the number of each type of vowel
*/
int countA = 0, countE = 0, countI = 0, countO = 0, countU = 0;
Scanner scan = new Scanner(System.in);
// Get the string from the user (prompt and input)
System.out.println("Enter a string of characters:");
String str = scan.nextLine();
// format for this part:
for (int i = 0; i < str.length(); i++) {
switch (str.charAt(i)) {
case 'a':
case 'A':
countA++;
break;
case 'e':
case 'E':
countE++;
break;
case 'i':
case 'I':
countI++;
break;
case 'o':
case 'O':
countO++;
break;
case 'u':
case 'U':
countU++;
break;
default:
break;
}

4. }
/*
* Remember: 1) condition should use method for getting string length 2)
* exp (in switch) should use method for returning a character
*/
// Output results
System.out.println("Number of each vowel in the string: a: " + countA
+ " e: " + countE + " i: " + countI + " o: " + countO
+ " u: " + countU);
}
}
OUTPUT:
Enter a string of characters:
Hello! I am Finn from the land of Ooo.
Number of each vowel in the string:
a: 2
e: 2
i: 2
o: 6
u: 0