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

Posted by Winston Kaseke
Winston Kaseke
874 Points

Variable Scope

To fix this error: Declare the output variable just before the if statement and assign it to an empty string (i.e. ""). Remove the string data types from the output variables within the if/else statement's curly braces

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 + ".";
        }

        Console.WriteLine(output);
    }
}

}

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 + ".";
            }

            Console.WriteLine(output);
        }
    }
}

1 Answer

Tim Strand
Tim Strand
22,458 Points
Tim Strand
Tim Strand
22,458 Points

This question is lacking a couple things: 1) a question. where are you stuck, what arent you understanding 2) a concerted effort at attempting to solve the question. it looks like you pasted the challenge here and called it good.