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Roman Lopez
2,211 PointsI need help on the second task...
What to do on the second task? There is no properties to call.
class Vehicle {
let wheels: Int
let doors: Int
// Designated initializer
init(wheels:Int, doors:Int){
}
}
class Car: Vehicle {
// A car must default to 4 wheels and 4 doors
init(){
// call super.init
}
}
1 Answer
Richard Lu
20,185 PointsHey Roman,
The follow challenge is to test you on inheritance. Since the class Car inherits from Vehicle, Car automatically has the ability to call from it's superclass.
init(wheels:Int, doors:Int)
You'll need to use the super classes initializer:
class Vehicle {
let wheels: Int
let doors: Int
// Designated initializer
init(wheels:Int, doors:Int){
self.wheels = wheels
self.doors = doors
}
}
class Car: Vehicle {
init(){
super.init(wheels: 4, doors: 4) // A car must default to 4 wheels and 4 doors
}
}
Enjoy!~