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iOS Object-Oriented Swift Inheritance What is Inheritance?

Andre Robinson
PLUS
Andre Robinson
Courses Plus Student 6,057 Points
Posted by Andre Robinson
Andre Robinson
Courses Plus Student 6,057 Points

Please help

I Do not know what I'm doing wrong in this excrise please help

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: Double = 0.0

}

2 Answers

Alexander Smith
Alexander Smith
10,476 Points
Alexander Smith
Alexander Smith
10,476 Points

I did it like this...

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
}

let rounded = RoundButton(width: 1.1, height: 2.2)

create your instance outside your class and give it the inherited parameters of the superclass. No need to put in the cornerRadius as its already defined in the RoundButton class

Cindy Lea
PLUS
Cindy Lea
Courses Plus Student 6,497 Points
Cindy Lea
Cindy Lea
Courses Plus Student 6,497 Points

Leave off this statement from your code:

var rounded: Double = 0.0