C++ Program to Check Whether a character is Vowel or Consonant

#include <iostream> using namespace std; int main() { char c; bool isLowercaseVowel, isUppercaseVowel; cout << "Enter an alphabet: "; cin >> 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'); // show error message if c is not an alphabet if (!isalpha(c)) printf("Error! Non-alphabetic character."); else if (isLowercaseVowel || isUppercaseVowel) cout << c << " is a vowel."; else cout << c << " is a consonant."; return 0; }