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Austin Clark
384 PointsAdd input validation
Hello,
Im trying to get the console to print "You must enter a valid number." when the user enters something that is NOT an integer. Attached is my code, but I cant seem to figure out how to get it working.
Console.Write("Enter the number of times to print \"Yay!\": "); var total = int.Parse(Console.ReadLine()); int counter=0;
while (counter < total)
{
Console.WriteLine("Yay!");
counter ++ ;
}
catch (FormatException)
{
Console.WriteLine("You must enter a whole number.");
}
Console.Readline();
}
}
}
using System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
Console.Write("Enter the number of times to print \"Yay!\": ");
var total = int.Parse(Console.ReadLine());
int counter=0;
while (counter < total)
{
Console.WriteLine("Yay!");
counter ++ ;
}
catch (FormatException)
{
Console.WriteLine("You must enter a whole number.");
}
Console.Readline();
}
}
}
1 Answer
Dale Severude
Full Stack JavaScript Techdegree Graduate 71,349 PointsHi Austin,
Your code is missing a TRY block. You can't catch an exception without a TRY block first.
Also, something is funky with your Console.ReadLine() at the end. It is not needed for the challenge. Check the preview button to make sure your code has no compile errors.
I added a TRY block and removed the Console.ReadLine() and your code works.