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C# C# Basics (Retired) Perfect Final

Posted by Kiem Ruach
Kiem Ruach
Courses Plus Student 2,520 Points

Final

I got this far and it compiles but i still get a "try again" message. What did I do wrong?

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            Console.Write("Enter the number of times to print \"Yay!\": ");
            var entry = Console.ReadLine();
            int count = 0;
            while(true){
            try{
                int times = int.Parse(entry);
                if(count < times){
                count++;
                Console.WriteLine("Yay!");
                }
                else{
                break;
                }
            }catch(FormatException){
            Console.Write("You must enter a whole number.");
                continue;
            }

            }
        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

:point_right: It looks like you have an infinite loop when the input is invalid.

The try/catch portion of the program shouldn't be inside a loop at all. This challenge has been a topic of many previous questions, but I'll repost the info here:

People 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 you have most of it right, but you need to constrain the loop to only where the printing is done. Try using the count to control the loop directly so you don't need the break.