Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Ankit Biswas
280 PointsTry Catch
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.
Wrap all of the code contained in the Main method in a try/catch block The catch block should catch FormatException exceptions Inside of the catch block, output to the console the message "You must enter a whole number." please tell me the code for it??
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 exception)
{
Console.WriteLine("You must enter a whole number.");
continue;
}
}
}
}
1 Answer

Jonathan Hermansen
25,935 PointsRemove continue inside catch-block, and you should be fine.