//GARAY, JOHN VINCENT B.

//MARQUEZ, JAN ALBERT C.

//CCP 1103 - SECTION

//COUNT THE CHARACTERS

​

using System;  

​

public class Program

{

    public static void Main()

    {

        string inputString;

        int letters;

        int digit; 

        int specialCharacter; 

        int i;

        int length;

        letters = digit = specialCharacter = i = 0;

        Console.WriteLine("String Count");

        Console.Write("Enter a string: ");

        inputString = Console.ReadLine();

        length=inputString.Length; 

        if (string.IsNullOrWhiteSpace(inputString))

        {

            Console.Write("No input. Please input a string.");

        }

        else

        {

            while(i<length)

            {

                if((inputString[i]>='a' && inputString[i]<='z') || (inputString[i]>='A' && inputString[i]<='Z'))

                {

                    letters++;

                }

                else if(inputString[i]>='0' && inputString[i]<='9')

                {

                    digit++;

                }

                else

                {

                    specialCharacter++;

                }

                i++;

            }

            Console.WriteLine("Letter count: " + letters);

            Console.WriteLine("Number count: " + digit);

            Console.WriteLine("Special character count: " + specialCharacter);  

            Console.WriteLine("Total number of characters: " + length);

        }

    }

}