Can anybody help me with the next question it is confusing me i am trying to do it right but it says i'm wrong

Please post your code and the error you're receiving. It's hard to help you fix it if we have no idea what your current answer looks like.

Look at the initializer function init(). This function sets the height and width of the Button object based on two parameters passed to it. By looking at that function we can remind ourselves of 3 things: 1) to assign a value to the height and width of the Button, we need to use self.width and self.height, 2) the name of the incoming parameters is the word before the ":", because that's how they're referred to later, and 3) we don't use "Double" again after the list of parameters - it's the type, remember?

So base on those things, we should end up with code something like this:

class Button {
  var width: Double
  var height: Double

  init(width:Double, height:Double){
    self.width = width
    self.height = height
  }

  func incrementBy(points:Double){
    self.width = self.width + points // points is the variable name, not Double - that's the type
    self.height = self.height + points // we could use += here instead, but it looked like you got
                                       // confused about the order - it would be self.height += points
  }
}

how do i do that JD.Sandifer

Ok I haven't wrote any code because it all got deleted one time when I came back on here so now I have nothing and I don't even know how to start it off but this is what I have: class Button { var width: Double var height: Double

init(width:Double, height:Double){ self.width = width self.height = height }

func incrementBy (points: Double) Double += Height Double += Width } } J.D. Sandifer

Here is the solution :

class Button {
  var width: Double
  var height: Double

  init(width:Double, height:Double){
    self.width = width
    self.height = height
  }

  func incrementBy (points:Double) {
  width = width + points
  height = height + points
  }

}

class Button { var width: Double var height: Double

init(width:Double, height:Double){ self.width = width self.height = height }

func incrementBy (points:Double) { width = width + points height = height + points } } Please tell if that helps!