Program to Find Frequency of Vowel Consonant of String in C

January 31, 2023

Program to Count Vowels,Consonants,Digits and White Spaces in a String:

We will write a program of vowel consonant frequency string in C language.In this we have to find the frequency or number of times vowels, consonants, digits and white spaces occurred in a string. This will help to understand the basic structure of for loop ,if- else, etc.

Vowel Consonant Frequency String Program:

In this program, we have to check for the following things:

count the number of vowels in the string
count the number of consonants in the string
count the number of digits in the string
count the number of white spaces in the string

There 21 consonants and 5 vowels (a,e,i,o,u) in English.Apart from this,there are 10 digits from 0 to 9 .

Example:

Input: str = "PrepInsta 1234"
Output:
Vowels: 3
Consonants: 6
Digits: 4
White Spaces: 1

Problem 1:

Run

#include <stdio.h>
#include<ctype.h>
int main ()
{

  char str[150] = "PrepInsta 1234";
  int vow, cons, dig, spc;

  printf ("Given string %s has \n", str);
  vow = cons = dig = spc = 0;



  for (int i = 0; str[i] != '\0'; i++)
    {


      str[i] = tolower (str[i]);

      if (str[i] == 'a' || str[i] == 'e' || str[i] == 'i' ||
	  str[i] == 'o' || str[i] == 'u')
	{


	  ++vow;
	}


      else if ((str[i] >= 'a' && str[i] <= 'z'))
	{
	  ++cons;
	}


      else if (str[i] >= '0' && str[i] <= '9')
	{
	  ++dig;
	}


      else if (str[i] == ' ')
	{
	  ++spc;
	}
    }

  printf ("Vowels: %d", vow);
  printf ("\nConsonants: %d", cons);
  printf ("\nDigits: %d", dig);
  printf ("\nWhite spaces: %d", spc);

  return 0;
}

Output

Given string PrepInsta 1234 has 
Vowels: 3
Consonants: 6
Digits: 4
White spaces: 1

NOTE: We have used the tolower( ) inbuilt function to convert all the characters whether capital or small to lowercase.So, to use this function we must import ctype.h header file.

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Problem 2: Using Function

Run

#include<stdio.h>

int isVow (char ch)
{
  if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u'
      || ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U')
    {
      return 1;
    }
  else
    {
      return 0;
    }
}

int isCons (char ch)
{
  if (((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) && !isVow (ch))
    {
      return 1;
    }
  else
    {
      return 0;
    }
}

int isDig (char ch)
{
  if (ch >= '0' && ch <= '9')
    {
      return 1;
    }
  else
    {
      return 0;
    }
}

int isspc (char ch)
{
  if (ch == ' ')
    {
      return 1;
    }
  else
    {
      return 0;
    }
}

int main ()
{
  char str[500] = "PrepInsta 1234";
  printf ("Given string %s has \n", str);
  int V = 0, C = 0, D = 0, W = 0, i;
  for (i = 0; str[i] != '\0'; i++)
    {
      V += isVow (str[i]);
      C += isCons (str[i]);
      D += isDig (str[i]);
      W += isspc (str[i]);
    }
  printf ("Vowels: %d\n",V);
  printf ("Consonants: %d\n",C);
  printf ("Digits: %d\n",D);
  printf ("White spaces: %d",W);
 
  return 0;
}

Output

Given string PrepInsta 1234 has 
Vowels: 3
Consonants: 6
Digits: 4
White spaces: 1

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Program to Find Frequency of Vowel Consonant of String in C

Program to Count Vowels,Consonants,Digits and White Spaces in a String:

Vowel Consonant Frequency String Program:

Problem 1:

Output

Problem 2: Using Function

Output

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