Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# C# Basics (Retired) Perfect Final

Andrew Minert
Andrew Minert
3,984 Points

Step 2 won't pass, Any suggestions would be awesome!

STEP 2 - Add input validation to your program by printing “You must enter a whole number.” if the user enters a decimal or something that isn’t a number. Hint: Catch the FormatException.

Program.cs
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            Console.Write("Enter the number of times to print \"Yay!\": ");
            var nums = int.Parse(Console.ReadLine());
            int tums = 0;
            int total = tums + nums;
            try
            {
              while (total > 0)
              {
                  Console.Write("yay");
                  total --;

              }

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

          } 


        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,248 Points

For the "try" to be effective, the "int.Parse" must be done inside its code block.

And I'm just curious ... what does "tums" represent?