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iOS Object-Oriented Swift Inheritance What is Inheritance?

thomas howard
thomas howard
17,572 Points
Posted by thomas howard
thomas howard
17,572 Points

Stuck on Inheritance quiz

I'm working on the objective Swift and I'm stuck on part 3 of the quiz. I created an instance named "rounded" and made it from RoundButton. I tried putting in the arguments from the superclass. Then tried to re-initalize them with dot notation when I got errors. The code attached does not work, but the error is not provided by the complier. I'd go into documentation, but gotta get to work!

where did I fail?

Thanks.

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: 2.0, height: 2.0)


}

2 Answers

Matthew Reed
PLUS
Matthew Reed
Courses Plus Student 17,986 Points
Matthew Reed
Matthew Reed
Courses Plus Student 17,986 Points

Create the instance of RoundButton outside of the curly braces.

Matthew Reed
Matthew Reed
Courses Plus Student 17,986 Points
Matthew Reed
Matthew Reed
Courses Plus Student 17,986 Points

Also move the RoundButton class outside the curly braces

thomas howard
thomas howard
17,572 Points
thomas howard
thomas howard
17,572 Points

Awesome. Thanks. I did not catch the Curly Brackets. I don't know why that is the only brace, but everything else is a bracket.