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C# C# Objects Encapsulation with Properties Computed Properties

Arturs Dubra
Arturs Dubra
4,748 Points
Posted by Arturs Dubra
Arturs Dubra
4,748 Points

Help needed with computed properties C#

These computed properties confuses me.

My guess is that I need to create 1-2 private fields(I have no idea witch ones) Then get the information about Square area out of them.(Again no idea how code this properly)

I would appreciate any help.

Square.cs 
namespace Treehouse.CodeChallenges
{
    class Square : Polygon
    {

        public double SideLength { get; private set; }

        public Square(double sideLength) : base(4)
        {
            SideLength = sideLength;
        }
        public double Area 
        {
          get
          {
            return  SideLength;
          }
        }
    }
}
Polygon.cs 
namespace Treehouse.CodeChallenges
{
    public class Polygon
    {
        public int NumSides { get; private set; }

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

2 Answers

anil rahman
anil rahman
7,786 Points
anil rahman
anil rahman
7,786 Points

Not done this part yet but managed to figure it out for you :)

namespace Treehouse.CodeChallenges
{
    class Square : Polygon
    {
        public double SideLength { get; private set; }

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

      public double Area
      {
          get
          {
              return SideLength * SideLength; //you were so close
          }

      }
    }
}

You missed out the area equation

Ole Vølund Skov Mortensen
Ole Vølund Skov Mortensen
27,797 Points

had problems understanding it as well. now that i see it, i feel so stupid for not remembering that bit about SideLength * SideLength = Area; and this was basic school math for me and i didn't remember it!!! Man, i got to brush up on my math skills now