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C# C# Basics (Retired) Perfect Final

Posted by Dean Tinashe Katsaura
Dean Tinashe Katsaura
3,059 Points

The use of input validation on the try and catch exception

Add input validation to the below program by printing "You must enter a whole number." if the user enters a decimal or something that isn’t a number.

Program.cs 
using System;

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

            Console.Write("Enter the number of times to print \"Yay!\": ");
            string input = Console.ReadLine();     

           try
           {
            int count = int.Parse(input);
           }

            int i = 0;
            while(i < count)
            {
                i += 1;   
                Console.WriteLine("Yay!");
            }

                catch (FormatException)

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

        }
    }
}

1 Answer

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

Try putting the loop inside the "try" block. There should be no code between the "try" block and the "catch".