using System;

public class Program

{

    public static void Main()

    {

        string num;

        int numInteger;

        bool iCanConvert;

        double numDouble;

        bool dCanConvert;

        Console.WriteLine("Give me a number?");

        num = Console.ReadLine();

        // Using TryParse, bool iCanConvert, and int numInteger, convert to an integer.

        // x = int.TryParse...

        iCanConvert = int.TryParse( num, out numInteger);

        dCanConvert = double.TryParse( num, out numDouble);

        // If it is an integer, tell the user it is an integer.

        // If not, tell the user what they entered was not an integer.

​

        if( iCanConvert == true )

        {

            Console.WriteLine("It is an integer.");

            if( dCanConvert == true )

            {

            Console.WriteLine("\nIt is not a double.");

            }

        }

        else

        {

            Console.WriteLine("It is not an integer.");

            if( dCanConvert == true )

            {

            Console.WriteLine("\nIt is a double.");

            }

        }

        Console.WriteLine("\nPress enter key to continue.");

        Console.ReadLine();

        Console.Clear();

        Main();

​

    }

}