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C# C# Objects Inheritance Inheritance

Posted by Devon Parsons
Devon Parsons
7,766 Points

how do you use inheritance in C#? Object Inheritance Code challenge?

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

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

} }

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

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

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

There are a few steps involved in the challenge task.

  • adding " : Polygon" was the right idea. But it needs to be added to the original class definition.
  • you still need to make a constructor for your new class.
  • your constructor will also have a colon and an explicit call to base (see example in video)

You might want to re-watch the video on Inheritance in Code. Be sure to watch how MapLocation is constructed to inherit from Point.