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C# C# Objects Inheritance Inheritance

Inheritance in code

Please help. It gives me this message when I try checking my work: "Bummer: 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."

I don't know what I did wrong.

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

        public Polygon(int numSides)
        {
            NumSides = numSides;
        }

        class Square : Polygon
        {

        public readonly int SideLength;

        public Square(int sideLength) : base(4)
        {
            SideLength = sideLength;
        }
    }
}

2 Answers

Steven Parker
Steven Parker
221,070 Points

The remedy was given as a hint in the error message "Be sure to define the Square class before or after the definition for the Polygon class." Right now, it's defined inside the other class:

// how it is now:
    class Polygon
    {
        class Square : Polygon  // note that this is INSIDE the Polygon class
        {
        }
    }

// how it SHOULD be:
    class Polygon
    {
    }
    class Square : Polygon  // now it is at the same nesting level as the other class
    {
    }

Thank you very much

Steven Parker
Steven Parker
221,070 Points

Sharon Gracious Thato Khumomotse — Glad to help. You can mark a question solved by choosing a "best answer".
And happy coding!

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

    public Polygon(int numSides)
    {
        NumSides = numSides;
    }
}

class Square : Polygon 
{
    public readonly int SideLength;

    public Square(int sideLength) : base(4) 
    {
        SideLength = sideLength;           
    }
}

}

give that a try

Thanks a lot