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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
27,842 Points
Ole Vølund Skov Mortensen
Ole Vølund Skov Mortensen
27,842 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