C++ check whether a character is alphabet or not

March 14, 2019 Karan Mandal

Basic programs
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Loop programs
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In this program, we are going to see whether a user given character is an alphabet or not. To determine the type of character, we have to check it’s ASCII value range.

Logic

To check if it is an alphabet or not we only need to check its ASCII value range. If it is an alphabet then it’s ASCII value range should be within 65 (A) – 90 (Z) or 97 (a) – 122 (z).

Program

AlphabetOrNot.CPP Copy

#include <iostream>

using namespace std;

int main() {

    char ch;
        
    cout << "Enter any character: ";
    cin >> ch;
    
    if((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) {

        cout << endl << ch << " is ALPHABET.";

    } else {

        cout << endl<< ch << " is NOT ALPHABET.";

    }

    return 0;
}

Try It

Output

Enter any character : x x is ALPHABET.

Program tags cpp programs program programming

C++ check whether a character is alphabet or not

Basic programs

If else programs

Loop programs

Logic

Program

Output