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C#

Posted by Kirill Budnikov
Kirill Budnikov
537 Points

Is C# Code Challenge: Final broken or is it just me?

My code works perfectly when I compile and run it through Workspaces, but in the challenge all I get is: "Bummer! System.ArgumentNullException: Value cannot be null. Parameter name: String. See output for stack trace." I even tried to catch this absurd "null" exception. But then I get just "Bummer! Try again" without any details. Here's my code: 

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            int yayTimes = 0;
            while (true)
            {
                Console.Write("Enter the number of times to print \"Yay!\": ");
                string entry = Console.ReadLine();
                    try
                    {
                        yayTimes = int.Parse(entry);
                    }
                    catch (FormatException)
                    {
                        Console.WriteLine("You must enter a whole number.");
                        continue;
                    }
               break;
            }

            for (int i = 0; i < yayTimes; i++)
            {
                Console.Write("Yay! ");
            }
        }
    }
}

1 Answer

Kirill Budnikov
Kirill Budnikov
537 Points

Sooo.. my mistake was that I thought the program should ask for a valid entry again if it was invalid. As soon as I got it, I just replaced my "continue;" with another "break;". A ton of negative emotions just because I didn't understand the requirements. Well, I call it a lesson.

Dan Comperini
Dan Comperini
Courses Plus Student 2,215 Points
Dan Comperini
Dan Comperini
Courses Plus Student 2,215 Points

I had the same issue. The requirements were not explained very well and the code does work.