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T Thomas
3,757 PointsWhy does this work in Workspaces, but not in C# Code Challenge?
I'm working on task 2 of the last Code Challenge in C# Basics.
It asks to add input validation. I assumed it was talking about the try/catch thing, which I added to the code.
This works in workspaces, but in the Code Challenge it says "Bummer. System.ArgumentNullException: Argument cannot be null. Parameter name: String. See output for stack trace.
Is it saying I have a null value? I'm not understanding whats happening.
using System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
while(true){
Console.Write("Enter the number of times to print \"Yay!\": ");
var entry = Console.ReadLine();
try{
int yays = int.Parse(entry);
var count = 0;
while(count != yays){
Console.WriteLine("yay!");
count += 1;
}
break;
} catch(FormatException){
Console.WriteLine("You must enter a whole number.");
continue;
}
}
}
}
}
1 Answer
Eric Moody
12,373 PointsThe outer While loop is unnecessary. Get rid of it, the continue, and the break. You're good otherwise.
T Thomas
3,757 PointsThank you!
T Thomas
3,757 PointsT Thomas
3,757 PointsI'm pretty sure it has something to do w/
int yays = int.Parse(entry);