Question

How to determine whether a character is a lowercase, uppercase or a number in C#

Answer 1

using System;

class Program
{
    static void Main() {
        char ch = 'q';
        
        if (Char.IsUpper(ch)) {
            Console.WriteLine("uppercase");
        }
        else if (Char.IsLower(ch)) {
            Console.WriteLine("lowercase");
        }
        else if (Char.IsDigit(ch)) {
            Console.WriteLine("digit");
        }
        else {
            Console.WriteLine("not alphanumeric");
        }
    }
}



/*
run:

lowercase

*/

 

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