Write a program to read a string and count the vowels (“a”, “e”, “i”, “o”, and “

Question

Write a program to read a string and count the vowels (“a”, “e”, “i”, “o”, and “u”). The program should provide a count for each vowel and a total count of vowels. The program should ensure that the vowels are counted for both upper and lower-case. Test the program on a series of different input values and verify that the output is correct for those input values.

Output shall be a formatted list of the format:

X occurs YYY times. Where X is each of the vowels and YYY is the number of occurrences in the input string.

So far I have this but I need help on how to display how many times each vowel occours.

program vowel

implicit none

INTEGER :: vowels=0
INTEGER :: i

CHARACTER :: letter
CHARACTER (len=1000) :: line

read '(a)', line
do i=1, 1000
   letter = line(i:i)
   select case (letter)
   case ('A', 'E', 'I', 'O', 'U', 'a', 'e', 'i', 'o', 'u')
   vowels = vowels + 1
   end select
end do
write (*,*) "A occurs", vowels, "times"
  

end program vowel

Explanation / Answer

//Tested on Eclipse

import java.util.Scanner;
import java.util.Set;
import java.util.TreeMap;

public class Vowels {
   public static void main(String args[]) {
       /* creating HashMap for storing vowels and count */
       TreeMap<String, Integer> map = new TreeMap<String, Integer>();
       /* Inserting vowels into treemap */
       map.put("a", 0);
       map.put("e", 0);
       map.put("i", 0);
       map.put("o", 0);
       map.put("u", 0);

       /*
       * creating instance variable of Scanner class for taking input from
       * console
       */
       Scanner scanner = new Scanner(System.in);
       /*
       * prompt for user input
       */
       System.out.println("Please enter the String");
       String input = scanner.nextLine();
       /* closing scanner object */
       scanner.close();

       /* Converting into char array */
       char character[] = input.toCharArray();
       /* Iterating character array */
       for (int i = 0; i < character.length; i++) {
           String val = character[i] + "";
           if (val.equalsIgnoreCase("a") || val.equalsIgnoreCase("e") || val.equalsIgnoreCase("i")
                   || val.equalsIgnoreCase("o") || val.equalsIgnoreCase("u")) {
               /* If vowels already exist in tree map */

               if (map.containsKey(val.toLowerCase())) {
                   Integer value = map.get(val.toLowerCase());
                   map.put(val.toLowerCase(), ++value);

               } else {
                   map.put(val.toLowerCase(), 1);

               }
           }

       }

       Set<String> keys = map.keySet();
       for (String key : keys) {
           System.out.print(key + "- " + map.get(key) + " ");
       }

   }

}

/********************output*******************/

Please enter the String
HEllo sam HOw are You. I am fine.
a- 3
e- 3
i- 2
o- 3
u- 1

Thanks a lot

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