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Start your free trialshawn khah
15,082 Pointscan't solve challenge 2 of 2
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 { 3 class Square : Polygon 4 { 5 public double SideLength { get; private set; } 6 ā 7 public double Area => SideLength * SideLength; 8
9 public Square(double sideLength) : base(4) 10 { 11 SideLength = sideLength; 12 } 13
14 public void Scale(double factor) 15 { 16 SideLength *= factor; 17 } 18 } 19 } 20 ā
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;
}
}
}
namespace Treehouse.CodeChallenges
{
class Polygon
{
public int NumSides { get; private set; }
public Polygon(int numSides)
{
NumSides = numSides;
}
}
}
3 Answers
Steven Parker
231,198 Pointsjust 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.
Larry Singleton
18,946 Pointsnamespace 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
15,082 Pointsthanks steven
Calvin Secrest
24,815 PointsCalvin Secrest
24,815 PointsI tried this step and I got this error
"Did you convert the method to a single-lined, expression bodied method?"
Is there a new Move method we need to change for the task, thanks!