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iOS Object-Oriented Swift Inheritance What is Inheritance?

RoundButton Class

I have no idea why I am getting an error here. I looked up solutions online and I am still getting an error.

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 = 5.0
}
var rounded = RoundButton(width: 12, height: 15)
}

2 Answers

Chris Shaw
Chris Shaw
26,676 Points

Hi Derek,

The problem is you have the RoundButton class inside of the Button class which is invalid syntax as it should be declared outside of the closing curly brace for Button, the easiest way to fix the problem is to move the curly brace on the last line to before the RoundButton class and the challenge will pass.

class Button {
  var width: Double
  var height: Double

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

class RoundButton : Button {
  var cornerRadius = 5.0
}

var rounded = RoundButton(width: 12, height: 15)

Happy coding!

It looks like you have your roundButton class inside the curly braces of class Button. Just move it out and you should be fine.