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iOS Object-Oriented Swift Inheritance What is Inheritance?

Laura Morgan
Laura Morgan
1,941 Points
Posted by Laura Morgan
Laura Morgan
1,941 Points

Trouble with the Inheritance challenge in the Object-Oriented Swift section. It says it isn't compiling...

"Create an instance of the class RoundButton and name the instance rounded."

I am having trouble and going in circles on this challenge. It says that it isn't compiling, but there is nothing in the editor and when look at it in the playground I don't get any errors. I just added the 5 's to test it out, but I guess I am pretty confused. :|

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

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

class RoundButton: Button {
var cornerRadius: Double = 5.0

var rounded = RoundButton(width: 5.0 , height: 5.0)

}

2 Answers

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Hi Laura,

Simple fix. You need to create your instance of RoundButton outside the class definition:

class Button {
  var width: Double
  var height: Double

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

class RoundButton: Button {
  var cornerRadius: Double = 5.0
}

var rounded = RoundButton(width: 5.0 , height: 5.0)