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C# C# Basics (Retired) Perfect Final

Isaac Barshay
Isaac Barshay
2,609 Points

What am I doing wrong?

Quote: "Add input validation to your program by printing “You must enter a whole number.” if the user enters a decimal or something that isn’t a number. Hint: Catch the FormatException."

Program.cs
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            bool InputFalse = true;
            int Count = 1;

            Console.Write("Enter the number of times to print \"Yay!\": ");
            string Input = Console.ReadLine();


            while (true)
            {
              if (InputFalse == false) 
              {
              // Prompt user for number of time
              Console.Write("Enter the number of times to print \"Yay!\": ");
              Input = Console.ReadLine(); 
              InputFalse = true;
              }

              try
              {
               int NumberOfTimes = int.Parse(Input);

               Console.WriteLine("\"Yay!\"");

               if (Count == NumberOfTimes) break;
               else Count++; 
              }
              catch(FormatException)
              {
                Console.WriteLine("You must enter a whole number.");
                InputFalse = false;
                continue;
              }
            }
        }
    }
}
Allan Clark
Allan Clark
10,810 Points

what is the error you are getting?

1 Answer

Steven Parker
Steven Parker
231,096 Points

Your loop repeats the prompt and input.

You also have a duplicate of the prompt output and a second ReadLine as well, but there should only be one of each. The loop should only enclose the code that prints out the "Yay!" messages if the number given is good, nothing else should be in the loop.

A program built according to the instructions will prompt and accept input one time, and based on the input it will either print "Yay!"s or an error mesage. Either way, it should end. With the loop around the other code it never ends and keeps asking for input.