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C# C# Basics (Retired) Perfect Variable Scope

Posted by odalis garcia
odalis garcia
21,311 Points

I have been stuck on this for days and can't get to pass. Please no more hints. I need help.

What am i doing wrong?

Program.cs 
using System;

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

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

            Console.WriteLine(output);
        }
    }
}

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! You're doing pretty well in my opinion, but let's take a look at the compiler error.

Program.cs(8,37): error CS0029: Cannot implicitly convert type void' tostring' Compilation failed: 1 error(s), 0 warnings

This is due to this line:

string output = Console.WriteLine();

The variable output is declared as being of type string, but Console.WriteLine(); returns a type of void. It returns nothing. Remember, WriteLine is simply for displaying something to the console.

Instead, the solution would be to initialize the string as empty and then change the values according to what the user input.

So, if I change that line to this, your code passes:

string output = "";

This declares a string named output and initializes it with an empty string. Later on, we'll give that output variable a different string value based on what we got in from the ReadLine() function.

Hope this helps! :sparkles:

odalis garcia
odalis garcia
21,311 Points

Thank you so much.