Question

Write a program named CountVowelsModularized that passes a string to a method that returns the number of vowels in the string.

Answer 1

Answer:

import java.util.Scanner;

public class CountVowelsModularized {

   public static void main(String[] args) {

       Scanner in = new Scanner (System.in);

//Prompt user to enter a string, receive it and assign to a variable        

System.out.println("Enter a string Value");

       String word =in.nextLine();

//Calling the method numVowels and passing the string

       System.out.println("The Number of vowels are " +numVowels(word.toLowerCase()));

   }

}

The method definition and complete program is given in the explanation section

Explanation:

import java.util.Scanner;

public class CountVowelsModularized {

   public static void main(String[] args) {

       Scanner in = new Scanner (System.in);

       System.out.println("Enter a string Value");

       String word =in.nextLine();

       System.out.println("The Number of vowels are " +numVowels(word.toLowerCase()));

   }

   public static int numVowels(String string) {

       int counter = 0;

       for (int i = 0; i < string.length(); i++) {

           if (string.charAt(i) == 'a' || string.charAt(i) == 'e' || string.charAt(i) == 'i'

                   || string.charAt(i) == 'o' || string.charAt(i) == 'u') {

               counter++;

           }

       }

       return counter;

   }

}