Write a C Program to Check whether an Alphabet is Vowel or Consonant

Write a C Program to Check whether an Alphabet is Vowel or Consonant

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


        char c;
        int isLowercaseVowel, isUppercaseVowel;
        printf("Enter an alphabet: ");
        scanf("%c",&c);
        // evaluates to 1 (true) if c is a lowercase vowel
        isLowercaseVowel = (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
        // evaluates to 1 (true) if c is an uppercase vowel
        isUppercaseVowel = (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');
        // evaluates to 1 (true) if either isLowercaseVowel or isUppercaseVowel is true
        if (isLowercaseVowel || isUppercaseVowel)
            printf("%c is a vowel.", c);
        else
            printf("%c is a consonant.", c);
        return 0;
    }
               

Output:

 Enter an alphabet: a
 a is a vowel.
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 Enter an alphabet: b
 b is a consonant.
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