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C# C# Basics (Retired) Perfect "try" Code and "catch" Exceptions

Posted by Arran C
Arran C
880 Points

Compiler error

I'm getting this error and have no idea what i've done wrong:

error:

"Program.cs(59,21): error CS0136: A local variable named minutes' cannot be declared in this scope because it would give a different meaning tominutes', which is already used in a `child' scope to denote something else "

code :

using System;

namespace Treehouse.FitnessFrog
{
  class Program
  {
      static void Main()
      {
          int runningTotal = 0;
          bool keepGoing = true;

        while (keepGoing) 
        {
            // Prompt the user for minutes exercised
            Console.Write("Enter how many minutes you have exercised or type \"quit\" to exit: ");

              string entry = Console.ReadLine();

              if(entry == "quit")
              {
                 keepGoing = false;
              }
              else
              {                
                  try
                  {
                       int minutes = int.Parse(entry);


                        if(minutes <= 0)
                        {
                          Console.Write(minutes + " is not an acceptable value. ");
                          continue;
                        }

                      else if(minutes <= 10)
                      {
                          Console.Write("Better than nothing I suppose. ");
                      }
                      else if(minutes <= 30)
                      {
                          Console.Write("Hell yeah! ");
                      }
                      else if(minutes <= 60)
                      {
                          Console.Write("Am I seeing a warrior in training? ");
                      }
                      else
                      {
                          Console.Write("Stop showing off! But don't stop exercising though, it's good for you! ");

                      }
                  }
                  catch(FormatException)
                  {
                      Console.Write("That is not a valid input. ");
                      continue;
                  }
                int minutes = int.Parse(entry);

                runningTotal = runningTotal + minutes;

            // Add minutes exercised to total
            // Display total minutes exercised to the screen#
            Console.WriteLine("You've entered " + runningTotal + " minutes");
            }
            // Repeat until user quits 
        } 
            Console.WriteLine("Goodbye");
      }
  }
}

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

Try declaring "minutes" before the "try", and then inside the try simply assign it without declaring it again.

Also remove the second declaration and initialization that is currently after the "catch".

Arran C
Arran C
880 Points

I tried doing that but no luck

EDIT

I messed around with it and eventually after putting

runningTotal = runningTotal + minutes;

in the try block, it worked :)

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

That particular line should be fine wherever you place it. The "try" block mainly needs to contain the "int.Parse" line.