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C# C# Basics (Retired) Perfect Variable Scope

Posted by Eli Goodwin
Eli Goodwin
29,502 Points

not understanding what is going here

I am confused as to why this isn't working. are we supposed to try-catch for the input being quit? if so then what is to be the catch output?

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {            
            input = Console.ReadLine();

            if (input == "quit")
            {
                string output = "Goodbye.";
            }
            else
            {
                string output = "You entered " + input + ".";
            }

            Console.WriteLine(output);
        }
    }
}

1 Answer

Rune Andreas Nielsen
Rune Andreas Nielsen
5,354 Points
Rune Andreas Nielsen
Rune Andreas Nielsen
5,354 Points

Hi Eli.

The problem in your code, is that your "output" variable is defined inside of a scope, so it cannot be printed on the last line. 

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {            
            input = Console.ReadLine();
            string output = "";

            if (input == "quit")
            {
                output = "Goodbye.";
            }
            else
            {
                output = "You entered " + input + ".";
            }

            Console.WriteLine(output);
        }
    }
}

So the thing i've changed in the code, is that i moved the "output" variable out of the if and else scopes, so it can be used on the last line with the console.writeline();