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C# C# Basics (Retired) Perfect Variable Scope

Andrada Terenche
Andrada Terenche
1,103 Points
Posted by Andrada Terenche
Andrada Terenche
1,103 Points

Cannot solve try/catch Code Challenge.

I cannot complete the challenge for this video. I tried in different ways, but I'm just stuck.

Steven Parker
Steven Parker
230,274 Points
Steven Parker
Steven Parker
230,274 Points

Show your code from your best attempt, and we can help you fix it.

2 Answers

Steven Parker
Steven Parker
230,274 Points
Steven Parker
Steven Parker
230,274 Points

Here's some general hints:

There are several issues with the provided code that need fixing. Some things to remember:

  • a variable should only be declared once
  • a variable should be declared in the outermost scope it is used in
  • a variable already declared can be assigned any number of times
Hugh Veal
Hugh Veal
3,250 Points
Hugh Veal
Hugh Veal
3,250 Points

I looked at the code in the challenge. It shows that input was used, but it was never declared. In order to use it, you must first give it a type in its instantiation, like:

string variablename = Console.ReadLine();