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C# C# Basics (Retired) Perfect Final

Posted by Philip Jensen
Philip Jensen
7,341 Points

not sure how to tackle this problem after a few tries. where should the try and catch start within the code

the code is below and have to ensure whole numbers are used and anything else is an invalid entry.

I tried rewatching the video but i am stuck on the placement of the try and catch and what goes where in general.

below is how completed the 1st task without any issues.

appreciate any help

using System;

namespace Treehouse.CodeChallenges { class Program { static void Main() { Console.Write("Enter the number of times to print \"Yay!\": "); int counter = 0; String times = Console.ReadLine(); int totals = int.Parse(times); while (counter < totals) { Console.Write("\"Yay\"! "); counter = counter + 1; } 

    }
}

}

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            Console.Write("Enter the number of times to print \"Yay!\": ");
            int counter = 0;
            String times = Console.ReadLine();
            int totals = int.Parse(times);
            while (counter < totals)
            {
              Console.Write("\"Yay\"! ");
              counter = counter + 1;
            }  

        }
    }
}
Philip Jensen
Philip Jensen
7,341 Points

must be very tired i managed to solve it :)

using System;

namespace Treehouse.CodeChallenges { class Program { static void Main() {

            try
            {
            Console.Write("Enter the number of times to print \"Yay!\": ");
                int counter = 0;
                String times = Console.ReadLine();
                int totals = int.Parse(times);
                while (counter < totals)
                     {
                     Console.Write("\"Yay\"! ");
                     counter = counter + 1;
                     } 
              }

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

    }
}

}

1 Answer

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

Here's a few hints:

  • the line that has the int.parse will go inside the try block, since that's what you are testing
  • the lines that use the converted value can also go inside the try block
  • the catch block comes after the try block, and will contain the code to print the error message

Hopefully, that will get you going. Happy coding!   -sp:sparkles:

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

I guess you fixed it while I was composing my answer. Congrats, and good job! :+1: