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C# C# Basics (Retired) Perfect Final

Posted by sarahwhite7
sarahwhite7
838 Points

Final code challenge 3 of 3 - "I entered -1 but nothing is printing out" ???

What am I missing??

Program.cs 
using System;
namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            var total = 0;

            Console.Write("Enter the number of times to print \"Yay!\": ");
            var entry = Console.ReadLine();
            try
            {
                var times = int.Parse(entry);
                while (total < times)
                {
                    total += 1;
                    Console.WriteLine("Yay!");
                }
            }
            catch (FormatException)
            {
                Console.WriteLine("You must enter a whole number.");

            }
        }
    }
}
sarahwhite7
sarahwhite7
838 Points

I know I have to tell the user to input a positive number, but where do I put that?

1 Answer

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

Check the value after it has been parsed.

As soon as you have parsed the input into a number, you can test the number with an if statement to be sure it is not negative. If it is, you can print out the appropriate message (as given in the challenge) and end the program.

sarahwhite7
sarahwhite7
838 Points

Thank you!