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Start your free trialWinston Kaseke
874 Pointstry and catch where to input them
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."
using System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
Console.Write("Enter the number of times to print \"Yay!\": ");
string input = Console.ReadLine();
int count = int.Parse(input);
int i = 0;
while(i < count)
{
i += 1;
Console.WriteLine("Yay!");
}
catch(FormatException)
{
Console.Write("You must enter a whole number")
}
}
}
}
1 Answer
Robert Stefanic
35,170 PointsYou have the catch
part, but it a try{}
block needs to come before the catch
block, just like an else
statement can only appear after an if
statement.
Example:
try
{
// My code
}
catch (Exception e)
{
// What to do if an error occurs
}