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C# C# Objects Inheritance Inheritance

Posted by Victor Börjesson
Victor Börjesson
510 Points

i dont really get where to go from this

I dont understand what to do

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 NumSides(int sideLength) : base(4)
        {

        }
    }

}

2 Answers

andren
andren
28,558 Points
andren
andren
28,558 Points

Your solution is quite close, there are only two issues:

  1. You have named your constructor NumSides which is incorrect, it should be named the same as the class it is within, which is Square.

  2. You need to set the SideLength field equal to the sideLength parameter within the constructor, in the same way as is done in the Polygon constructor.

Like this:

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) // Renamed NumSides to Square
        {
            SideLength = sideLength; // Set SideLength field equal to sideLength parameter.
        }
    }
}
David Tomko
David Tomko
7,744 Points
David Tomko
David Tomko
7,744 Points

Just gotta change the the constructor ('NumSides') to match the Class('Square') and Set SideLength = to the parameter('sideLength')

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

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