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yi yuan
2,436 Pointswhere am I wrong at the course of "init in subclass"
I think I hit the points during the tutorial, but I can't figure where I am wrong. Any help will be appreciated!
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(cornerRadius: Double){
self.cornerRadius = cornerRadius
super.init(width: width, height: height)
}
}
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(cornerRadius: Double){
self.cornerRadius = cornerRadius
super.init(width: width, height: height)
}
}
1 Answer
kjvswift93
13,515 Pointsclass RoundButton: Button {
var cornerRadius: Double = 5.0
init(width:Double,height:Double,cornerRadius:Double){
self.cornerRadius = cornerRadius
super.init(width: width, height: height)
}
}
yi yuan
2,436 Pointsyi yuan
2,436 PointsThanks, it works! But I just got confused because the tutorial seems only have one parameter when the subclass init if I remember right.