C program to Count number of Vowels and Consonants in a string

Count number of Vowels and Consonants


Write a C program to Count number of Vowels and Consonants in a string. Here’s simple C program to Count number of Vowels and Consonants in a string in C Programming Language.


C – Strings : 


Strings are actually one-dimensional array of characters terminated by a null character ‘\0’. Thus a null-terminated string contains the characters that comprise the string followed by a null.

String is a sequence of characters. char data type is used to represent one single character in C. So if you want to use a string in your program then you can use an array of characters.

The declaration and definition of the string using an array of chars is similar to declaration and definition of an array of any other data type.

Any string ends with a terminating null character ‘\0’. An array definition in such a way should include null character ‘\0’ as the last element.


Here is source code of the C program to Count number of Vowels and Consonants in a string. The C program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.


SOURCE CODE : :


/*  C program to Count number of Vowels and Consonants in a string  */

#include <stdio.h>
#include <string.h>

#define MAX_SIZE 100 //Maximum size of the string

int main()
{
    char string[MAX_SIZE];
    int i, len, vowel, consonant;

    /* Reads string from user */
    printf("\nEnter any string: ");
    gets(string);

    vowel = 0;
    consonant = 0;
    len = strlen(string);

    for(i=0; i<len; i++)
    {
        /*
         * If the current character(string[i]) is a vowel both upper and lowercase characters
         */
        if(string[i] =='a' || string[i]=='e' || string[i]=='i' || string[i]=='o' || string[i]=='u' || string[i]=='A' || string[i]=='E' || string[i]=='I' || string[i]=='O' || string[i]=='U')
        {
            vowel++;
        }
        else if((string[i]>='a' && string[i]<='z') || (string[i]>='A' && string[i]<='Z'))
        {
            consonant++;
        }
    }

    printf("\nTotal number of vowel = [ %d ]\n", vowel);
    printf("\nTotal number of consonant = [ %d ]\n", consonant);

    return 0;
}

OUTPUT:


/*  C program to Count number of Vowels and Consonants in a string  */

Enter any string: Hello COdezClub

Total number of vowel = [ 5 ]

Total number of consonant = [ 9 ]

Process returned 0

Above is the source code for C program to Count number of Vowels and Consonants in a string which is successfully compiled and run on Windows System.The Output of the program is shown above .

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