Example: C++ program to check vowel or consonant using if else, It will either vowel or consonant

// C++ program to check vowel or consonant using if else, It will either vowel or consonant
#include <bits/stdc++.h>
#include <cctype>
// this header file loaded for check the charcters
using namespace std;

int main() {
    char random_character;
    int lowercase = 0, uppercase = 0;
    
    cout << "Enter a character to check: ";
    cin >> random_character;

    // isalpha() function will check
    // whether character is alphabetic or non-alphabetic
    if (random_character && isalpha(random_character)) {

        // it will be return 1
        // if input character matched with these small characters
        lowercase = random_character == 'a' || random_character == 'e' || random_character == 'i' || random_character == 'o' || random_character == 'u';
        
        // it will be return 1
        // if input character matched with these capital characters
        uppercase = random_character == 'A' || random_character == 'E' || random_character == 'I' || random_character == 'O' || random_character == 'U';
       
        if (lowercase || uppercase)
            cout << "\n'" << random_character << "' is a vowel character.\n";
        else
            cout << "\n'" << random_character << "' is a consonant character.\n";
    } else {
        cout << "\nSorry, You entered Non-Alphabetic character!\n";
    }

    return 0;
}