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C# C# Basics (Retired) Perfect Variable Scope

Posted by Hakim R
Hakim R
355 Points

Program.cs(11,13):error CS0103: The name`input'does not exist in the current context ->try {input = Console.ReadLine();}

input exist in the try scope !!

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {            

            try 
            {

            input = Console.ReadLine();

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

            Console.WriteLine(output);
        }
            catch(FormatException)
                    {

                        continue;
                    }
        }
    }
}

1 Answer

Steven Parker
Steven Parker
229,657 Points
Steven Parker
Steven Parker
229,657 Points

You have not declared the variable input yet.

That's what the error message is trying to tell you. Before (or when) you assign input you must declare it with a "var" or "string" keyword.

You'll find a few other things to fix in this challenge. Remember:

  • a variable must be declared before it is used.
  • a variable can only be declared once, but can be assigned multiple times
  • a variable should be declared in the outermost scope in which it is used
Hakim R
Hakim R
355 Points

Thanks for answering!

Steven Parker
Steven Parker
229,657 Points
Steven Parker
Steven Parker
229,657 Points

And did you pass the task?