can't solve challenge 2 of 2

Question

Challenge Task 2 of 2
Use the syntactic sugar just learned about to convert the Scale method to a single line method.
 Important: In each task of this code challenge, the code you write should be added to the code from the previous task. Restart   Preview   Get Help   Check Work
Square.cs
Polygon.cs
1
namespace Treehouse.CodeChallenges
2
{
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    class Square : Polygon
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    {
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        public double SideLength { get; private set; }
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​
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       public double Area => SideLength * SideLength;
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        public Square(double sideLength) : base(4)
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        {
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            SideLength = sideLength;
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        }
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        public void Scale(double factor)
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        {
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            SideLength *= factor;
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        }
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    }
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}
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​
```Square.cs
namespace Treehouse.CodeChallenges
{
    class Square : Polygon
    {
        public double SideLength { get; private set; }
   public double Area => SideLength * SideLength;

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

public void Scale(double factor)
    {
        SideLength *= factor;
    }
}
}
```
```Polygon.cs
namespace Treehouse.CodeChallenges
{
    class Polygon
    {
        public int NumSides { get; private set; }
    public Polygon(int numSides)
    {
        NumSides = numSides;
    }
}
}
```

Steven Parker · Accepted Answer

:point_right: just do what you did in step 1 again.
It's basically just replacing the first brace with "=>" and removing the second brace.
There's a good example of this at about time index 01:58 of the Expression Bodied Members video (https://teamtreehouse.com/library/c-objects/encapsulation-with-properties/expression-bodied-members).

Larry Singleton · Answer

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

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

public void Scale(double factor)
    {
        SideLength *= factor;
    }
}
}

shawn khah · Answer

thanks steven

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shawn khah

shawn khah

can't solve challenge 2 of 2

3 Answers

Steven Parker

Steven Parker

just do what you did in step 1 again.

Calvin Secrest

Calvin Secrest

Larry Singleton

Larry Singleton

shawn khah

shawn khah