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C# C# Basics (Retired) Perfect Variable Scope

Rachael Helsel
PLUS
Rachael Helsel
Courses Plus Student 490 Points
Posted by Rachael Helsel
Rachael Helsel
Courses Plus Student 490 Points

I don't understand why input is not recognized when it's in the broader scope...

I'm still getting the error that input isn't declared, but it's at the very beginning of the Main method...so I'm not clear why.

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);
            }
        }
    }
}
Jon Wood
Jon Wood
9,884 Points
Jon Wood
Jon Wood
9,884 Points

I think input needs to be declared. Try var input = Console.ReadLine():.

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

The variable input is only being assigned at the moment.

To be declared, it would need to be preceded by a type, or at least the keyword "var".

Also, if you move the WriteLine into the else block, you are changing the intent of the program. To preserve the original intent you'll need to make sure output is only declared once, and in the outermost scope where it used.