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C# C# Basics (Retired) Perfect Final

Evan Krieger
Evan Krieger
341 Points
Posted by Evan Krieger
Evan Krieger
341 Points

Code works without error in workspace, throws argumentNullException when pasting code in answer section

My code works when running it in my workspace, but when I copy and paste it into the answer box of the final, it throws a ArgumentNullException error. What am I missing?

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
          int currentCount = 1;

          while(true)
            {
              Console.Write("Enter the number of times to print \"Yay!\": ");

            try
            {
                var entry = Console.ReadLine();
                var numberEntered =  int.Parse(entry);

               while (currentCount <= numberEntered)
              {
                Console.WriteLine("Yay!");
                currentCount = currentCount + 1;
              }
            }
            catch(FormatException)
                {
                    Console.WriteLine("You must enter a whole number.");
                    continue;
                }
            break;
          }
        }
    }
}

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

:warning: Be careful about testing a challenge in an external REPL or IDE.
If you have misunderstood the challenge, it's also very likely that you will misinterpret the results.

In this case, you have added an extra loop that prevents the program from ending if bad values are entered..

A program that follows the challenge instructions will only ask for input one time, and either print "Yay!"s or an error message. But either way it should end.