Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# C# Basics (Retired) Perfect Variable Scope

Can't get to pass

I am not understanding this. I have tried different ways and I just can't get it to pass.

Program.cs
using System;

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

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

           string output = Console.WriteLine(output);
        }
    }
}

1 Answer

Steven Parker
Steven Parker
229,578 Points

Here's a few hints:

  • a variable should be declared before (or when) it is assigned
  • a variable should only be declared one time, but can be assigned any number of times
  • a variable should be declared in the outermost scope in which it is used
  • a variable cannot be declared and passed as an argument in the same statement