# Count Vowels and Consonants Using Scala

Machine Problem

Write a program to ask the users to give a string or a sentence then the program will count the number of vowels, and consonants and display the results on the screen.

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Program Listing

``````Problem No. 7

Write a program to ask the users to give a string or a sentence
then the program will count the number of vowels, and consonants
and display the results on the screen.

Solution

/* vowels_consonants.scala
Prof. Jake Rodriguez Pomperada, MAED-IT, MIT
March 9, 2022  3:12 PM    Wednesday
Bacolod City, Negros Occidental
*/

import java.util.Scanner;

object vowels_consonants {

def main(args: Array[String]) : Unit = {

var input = new Scanner(System.in);

var vowels = 0; var consonants = 0;

var a = 0;

print("\n");
print("\tCount Vowels and Consonants Using Scala");
print("\n\n");
print("\tGive a String or a Sentence :  ");
var line = input.nextLine();

line = line.toLowerCase();

while (a < line.length)
{
var ch = line.charAt(a);

// check if character is any of a, e, i, o, u
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
vowels=vowels+1;
}

// check if character is in between a to z
else if ((ch >= 'a' && ch <= 'z')) {
consonants=consonants+1;
}

a=a+1;
}
print("\n")
print("\t===== DISPLAY RESULTS ====\n\n");
printf("\tNumber of Vowels     : %d \n" ,vowels);
printf("\tNumber of Consonants : %d " ,consonants);
print("\n\n");
print("\tEND OF PROGRAM");
print("\n\n");
}

}

``````