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Paul Jamieson
2,698 PointsHaving trouble with this question. Any help would be great!
Once again we are working with the RoundButton class and started to add a designated initializer to it. However, there's something wrong with it. Can you figure out how to fix it and make it work?
class Button {
var width: Double
var height: Double
init(width:Double, height:Double){
self.width = width
self.height = height
}
func scaleBy(points: Double){
width += points
height += points
}
}
class RoundButton: Button {
var cornerRadius: Double = 5.0
init(width:Double,height:Double,cornerRadius:Double){
self.cornerRadius = cornerRadius
}
}
1 Answer
Jason Anders
Treehouse Moderator 145,860 PointsHey Paul.
Because roundButton inherits from Button, you also need to include a super.init for the inherited values.
class RoundButton: Button {
var cornerRadius: Double = 5.0
init(width:Double,height:Double,cornerRadius:Double){
self.cornerRadius = cornerRadius
super.init(width: width, height: height)
}
}
Because you are using properties from the Super Class, they must also be initialized, by using super.init. Amit goes over this in this video starting just after the 3 minute mark.
Keep Coding! :)