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C# C# Basics (Retired) Perfect Final

Louis Colbert
Louis Colbert
709 Points
Posted by Louis Colbert
Louis Colbert
709 Points

wont compile

try { var input = Console.ReadLine();

            if(input <= 0)
            {
                Console.WriteLine("You must enter a positive number.");
                break;
            }

within this code It will not compile because it says that it is not valid in that you cannot perform a <= on string. so when I convert to double or atleast try to it will not allow this. can someone tell me why this is not possible by just changing it to a 0.0 and then running it as such or similarly (double)input <= 0

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {

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

            try
            {
                var input = Console.ReadLine();

                if(input <= 0)
                {
                    Console.WriteLine("You must enter a positive number.");
                    break;
                }   
                else
                {
                     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.");


            }
        }
    }
}

1 Answer

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
\\good one, almost there 3 bugs

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {

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

            try
            {
                var input = Console.ReadLine();

                if(input <= 0)// 1) this will not work, cause you are checking a string on a  greater than 0, convert into int before //checking
                {
                    Console.WriteLine("You must enter a positive number.");
                    break;// 2) you do not need this
                }   
                else
                {
                     int count = int.Parse(input); // 3) this will have to go before checking the positive

                     int i = 0;
                     while(i < count)
                        {
                            i += 1;   
                            Console.WriteLine("Yay!");



                        }


                }
            }       
            catch(FormatException)
            {
                Console.WriteLine("You must enter a whole number.");


            }
        }
    }
}