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Start your free trialAndrej Pajenk
1,087 PointsAdd input validation to your program by printing “You must enter a whole number.” if the user enters a decimal or someth
?
using System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
bool KeepGoing = true;
int counter = 0;
Console.Write("Enter the number of times to print \"Yay!\": ");
string entry = Console.ReadLine();
while(KeepGoing)
{
try
{
int minutes = int.Parse(entry);
Console.WriteLine("Yay!");
counter = counter + 1;
if(counter != minutes)
{
continue;
}
else
{
KeepGoing = false;
}
}
catch(FormatException)
{
Console.Write("You must enter a whole number.");
entry = Console.ReadLine();
continue;
}
}
}
}
}
2 Answers
Steven Parker
231,236 PointsPeople often over-think this one and get too creative, and their answer is rejected for a variety of reasons (some which don't seem to make any sense).
Here are the secret "rules" you must follow for success on this one:
- Your program must ask for and accept input ONE TIME ONLY
- 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. There are other perfectly good methods that can be used for validation, but they will not pass this challenge
It looks like your code has a loop that breaks rule 3 (and might run forever if the input is bad).
John Lukacs
26,806 Pointsusing System;
namespace Treehouse.CodeChallenges
{
class Program
{
static void Main()
{
Console.Write("Enter the number of times to print \"Yay!\": ");
string numofTimes= Console.ReadLine();
try{
int num =int.Parse(numofTimes);
for(var i=0; i<num; i++){
Console.WriteLine("\"Yay!\"");
}
catch(FormatException){
Console.WriteLine("You must enter a whole number.");
continue;
}
}
}
}
why is it still not passing
Mayron van Leenden
9,979 PointsMayron van Leenden
9,979 PointsHi try this solution:
}