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Start your free trialNathan Yebgui
15,732 PointsBummer! System.ArgumentNullException: Value cannot be null. Parameter name: String. See output for stack trace.
works fine in compiler. what have i missed?
using System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
Console.Write("Enter the number of times to print \"Yay!\": ");
int N=0;
while(true)
{
try
{
var entry = Console.ReadLine();
N = int.Parse(entry);
break;
}
catch(FormatException)
{
Console.WriteLine("You must enter a whole number.");
continue;
}
}
while(N>0)
{
Console.WriteLine("Yay!");
N--;
}
}
}
}
1 Answer
Steven Parker
231,236 PointsBe careful about testing a challenge in an external REPL or IDE.
If you have misunderstood the challenge, it's also very likely that you will misinterpret the results.
In this case, you have added an extra loop that prevents the program from ending..
A program that follows the challenge instructions will only ask for input one time, and either print "Yay!"s or an error message. But either way it should end.
Nathan Yebgui
15,732 PointsNathan Yebgui
15,732 PointsThanks, i removed the while(true) loop containing the try/catch and the code worked fine.