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C# C# Objects Inheritance Inheritance

Posted by Emil Trubitsyn
Emil Trubitsyn
1,494 Points

I defined the Square class after the polygon and it says an error , why?

Did you define your Square class as an inner class of the Polygon class? Be sure to define the Square class before or after the definition for the Polygon class.

Polygon.cs 
namespace Treehouse.CodeChallenges
{
   class Polygon
   {
     public readonly int NumSides;

     public Polygon(int numSides)
     {
       NumSides = numSides;
       numSides=4;
     }
   }
   class Square:Polygon
   {
     public readonly int SideLength;

     public Square(int sideLength):base(int numSides)
     {
           SideLength = sideLength;
     }
   }
}

1 Answer

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

When the instructions say "Use base to initialize NumSides to 4" they mean you should use the literal value 4.
Like this:

     public Square(int sideLength) : base(4)

Also, you don't need to make any changes to the definition of Polygon.