C Program to Count the Number of Vowels, Consonants

#include <stdio.h>

int main()
{
    // char data type with array
    char string[120];

    // int data types
    int i, vowels, consonants, digits, spaces;

    // Initial values to 0
    vowels = consonants = digits = spaces = 0;

    printf("\t-: C Program to Count the Number of Vowels, Consonants:- \n\n");

    printf("Enter Any String: ");

    gets(string);

    // First check if any NULL Character given = \0
    for(i=0; string[i] != '\0'; i++)
    {
        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')
        {
            // Post-increment
            vowels++;
        }

        else if((string[i] >= 'a' && string[i] <= 'z') || (string[i] >= 'A' && string[i] <= 'Z'))
        {
            // Post-increment
            consonants++;
        }

        else if(string[i] >= '0' && string[i] <= '9')
        {
            // Post-increment
            digits++;
        }

        else if (string[i] == ' ')
        {
            // Post-increment
            spaces++;
        }
    }

    // Print the results

    printf("\n-: The Result is Below :-\n\n");

    printf("Total Vowel(s) Found : %d", vowels);

    printf("\n\nConsonant(s) Found : %d", consonants);

    printf("\n\nDigit(s) Found : %d", digits);

    printf("\n\nWhite Space(s) Found : %d", spaces);

    printf("\n");

    return 0;
}