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C# C# Basics (Retired) Perfect Final

What do I have to change my code to?

The input I and catch causing errors

Program.cs
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            Console.Write("Enter the number of times to print \"Yay!\": ");
            string input = Console.ReadLine();
            try
            {
            int count = int.Parse(input);
            }
            catch(FormatException)
            {
            int i = 0;
                Console.WriteLine("You must enter a whole number.");
            }
            while(i < count)
            {
                i += 1;   
                Console.WriteLine("Yay!");
            }
        }
    }
}

One issue is that you are declaring i in the catch method then trying to call it in the while loop. The same goes for declaring count in try and calling it in the while loop. Try making them global variables by adding them above the Console.Write() method.

1 Answer

Dario Bahena
Dario Bahena
10,696 Points

What you want to do is wrap all of the code that is provided inside of main in a try catch. What this means is that all of that code goes in try and catch is left with the logging statement if an exception is thrown.

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            try {
                Console.Write("Enter the number of times to print \"Yay!\": ");
                string input = Console.ReadLine();

                int count = int.Parse(input);

                int i = 0;
                while(i < count)
                {
                    i += 1;   
                    Console.WriteLine("Yay!");
                }
                }
            catch (FormatException) {
                Console.WriteLine("You must enter a whole number.");
            }
        }
    }
}