5.9ConditionalStatements_PlayWith_Int_DoubleAndString

using System;

class PlayWith_Int_DoubleAndString
{
    static void Main ()
    {
        Console.WriteLine("Please, choose a type of your variable !");
        Console.Write(@"For ""int"" enter number 1,
for ""double"" enter number 2
or for ""string"" enter number 3!
Please, enter a number: ");
        string typeVariable = Console.ReadLine();

        switch (typeVariable)
        {
            case "1":
                Console.Write("Enter value for your integer, INT = ");
                string inputStr = Console.ReadLine();
                int numberInt = int.Parse(inputStr);
                Console.WriteLine("The result is: {0} !", (numberInt + 1));
                break;
            case "2":
                Console.Write("Enter value for your double, DOUBLE = ");
                inputStr = Console.ReadLine();
                double numberDouble = double.Parse(inputStr);
                Console.WriteLine("The result is: {0} !", (numberDouble + 1));
                break;
            case "3":
                Console.Write("Enter value for your string, STRING: ");
                inputStr = Console.ReadLine();
                Console.WriteLine("The result is: {0} !", inputStr + '*');
                break;
            default:
                Console.WriteLine("Error - Invalid Input !!!");
                break;
        }
        Console.ReadLine();
    }
}