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C# C# Basics (Retired) Perfect Final

Posted by Vishal Josi
Vishal Josi
689 Points

Program works in the Workspace, but not in the Challenge.

I copied and pasted the code into the Workspace and the program runs perfect, but it does not run in the Challenge. In the Challenge, it says that there is a null exception. Is there a problem with the compiler.

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            int count=0;
            string input = "0";
            int repeat=int.Parse(input);
            bool InputValidate = false;


            while(InputValidate==false)
            {
                Console.Write("Enter the number of times to print \"Yay!\": ");
                input = Console.ReadLine();
                try
                {
                    repeat=int.Parse(input);
                    InputValidate=true;

                }
                catch(FormatException)
                {
                    Console.WriteLine("You must enter a whole number.");
                    InputValidate=false;
                    continue;
                }
            }

            while(count<repeat)
            {

             Console.WriteLine("Yay!");
                count+=1;

            }
        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 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.