How to restrict the user input to five digits?

Question

I\'m trying to restrict the user to only input 5 digits into the console for C#. I have my code error check the user, but for some reason after I type let\'s say...6 digits, the

Answer 1

dont use Console.Readline() again and again

change your code like this.

    Console.WriteLine("Enter the the zip code of the contact.");
     var temp = int.Parse(Console.ReadLine());

        while (temp.ToString().Length != 5)
        {
            Console.WriteLine("Error. Zip code is not 5 digits. Please enter a valid number.");
            temp = int.Parse(Console.ReadLine());

            if (temp.ToString().Length == 5)
            {
                temp = int.Parse(Console.ReadLine());

            }
        }

(to save from null reference you can do if(temp < 100000 && temp > 9999) also.)