Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

C# C# Basics (Retired) Perfect Final

Adam Tyler
Adam Tyler
14,865 Points

Input Valdation: try, catch, if and else

This works in workspace, if given any non-positive number it tells me to enter a positive and gives me another chance to do so. (I have also tried removing the = for <= so entering 0 would be fine just to see if that was the problem) I don't get what is wrong if the code works in workspace. Thanks

Program.cs
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            try
            {
                int count;
                while(true)
                {
                    Console.Write("Enter the number of times to print \"Yay!\": ");
                    string input = Console.ReadLine();

                    count = int.Parse(input);

                    if(count <= 0)
                    {
                        Console.WriteLine("You must enter a positive number.");
                    }
                    else
                    {
                        break;
                    }
                }

                int i = 0;
                while(i < count)
                {
                    i += 1;   
                    Console.WriteLine("Yay!");
                }
            }
            catch(FormatException)
            {
                Console.WriteLine("You must enter a whole number.");
            }
        }
    }
}

1 Answer

Steven Parker
Steven Parker
212,135 Points

You've identified the problem when you said the program "gives me another chance".

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.