Write a program that asks the user for a word or phrase and then prints out the

Question

Write a program that asks the user for a word or phrase and then prints out the number of vowels in the word or phrase. We will considervowels to be only the letters a, e, i, o, and u. We will not consider the lettery to be a vowel. Remember to handle both uppercase and lower case letters. You program should contain at least 2 methods: the main method and a method for counting the number of vowels. If you get the first part working, modify your program to allow the user to enter multiple words. Use a sentinel value such as the letter 'q' or the word "quit' to signal the end of user input.

Explanation / Answer

package org.students;

import java.util.Scanner;

public class VowelsCount {

   public static void main(String[] args) {
      
       //Scanner class object us used to read the inputs entered by the user
       Scanner sc=new Scanner(System.in);
      
       //Declaring variables
       int vowelCount=0;
         
       //This loop continues to execute until the user enters either 'q' or "quit"
       while(true)
       {
           //Getting the string entered by the user
       System.out.print("Enter the String :");
       String str=sc.nextLine();
      
       //Check whether the user entered string is "q" or "quit"
       if(str.equals("q") || str.equals("quit"))
       {
           System.out.println(":: Program Exit ::");
           break;
       }
       else
       {
           //calling the method by passing the user entered string as argument
           vowelCount=countVowels(str);
             
           //displaying the no of vowels in the string
           System.out.println("No of vowels in the String are :"+vowelCount);
       }
          
       }  

   }

   //this method will find the no of vowels in the string
   private static int countVowels(String str) {
       //Declaring variables
   int vowelCount=0;
  
   //this for loop will count the number of vowels
   for (int i=0; i<str.length(); ++i)
   {
   if(str.charAt(i)=='a'||str.charAt(i)=='e'||str.charAt(i)=='i'||str.charAt(i)=='o'||str.charAt(i)=='u'
           ||str.charAt(i)=='A'||str.charAt(i)=='E'||str.charAt(i)=='I'||str.charAt(i)=='O'||str.charAt(i)=='U')
   {
   //counting the number of vowels
   vowelCount++;
   }
   }
   return vowelCount;
      
   }

}

___________________________

Output:

Enter the String :hello
No of vowels in the String are :2
Enter the String :how are you mary
No of vowels in the String are :6
Enter the String :q
:: Program Exit ::

_________Thank You

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