Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialDean Tinashe Katsaura
3,059 PointsThe 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 isnβt a number.
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
231,248 PointsTry putting the loop inside the "try" block. There should be no code between the "try" block and the "catch".