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iOS Object-Oriented Swift Inheritance Overriding Methods

Adam Siwiec
Adam Siwiec
12,070 Points
Posted by Adam Siwiec
Adam Siwiec
12,070 Points

Help! Override function error

Im getting an error in the challenge, I put the code in swift and there are no errors. I don't see what is wrong

Button.swift 
class Button {
  var width: Double
  var height: Double

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

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

class RoundButton: Button {
  var cornerRadius: Double = 5.0
   override func incrementBy(points: Double = 7.0){
    width += points
    height += points
  }
}

1 Answer

kjvswift93
kjvswift93
13,515 Points
kjvswift93
kjvswift93
13,515 Points

You need to use the underscore in from of the parameter name points when you create the override method otherwise the compiler assumes that the name of you parameter is "points:" not "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 += points
    height += points
  }
}

class RoundButton: Button {

  override func incrementBy(_ points: Double = 7.0) {
  }
  var cornerRadius: Double = 5.0
}