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Start your free trialShing wai Chan
1,255 PointsI don't know what cause the exception i get
i get System.NullReferenceException: Object reference not set to an instance of an object. but i can't finde it. i have commet some code out, but they make no difference.
using System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
int total = 0;
int counter = 0;
while (true)
{
Console.Write("Enter the number of times to print \"Yay!\": ");
var user = Console.ReadLine();
if ( user.ToLower()== "quit")
{ break;}
// try
//{
int numberOfTime = int.Parse(user);
while( counter < numberOfTime)
{
Console.Write("\"Yay!\": ");
counter++;
}
counter = 0;
total += numberOfTime;
Console.WriteLine("\n"+ "Numbers of Yay enter:"+ total);
// }
//catch (FormatException)
//{
// Console.WriteLine("This is not a number");
//continue;
//}
}
}
}
}
1 Answer
Steven Parker
231,236 PointsHere are a few hints for passing this challenge:
- Your program must ask for and accept input ONE TIME ONLY (no loop around input)
- If the input validates, your program will perform exactly as in Task 1
- If the input does not validate, it will print the error message and exit
- Validation must be done by exception catching. Your Parse must be inside a try block.
Shing wai Chan
1,255 PointsShing wai Chan
1,255 Pointsahh, i got it! thanks for the explanation :)