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nader adam
Courses Plus Student 548 Pointswhat can i do here
class Vehicle { var numberOfDoors: Int var numberOfWheels: Int
init(withDoors doors: Int, andWheels wheels: Int) { self.numberOfDoors = doors self.numberOfWheels = wheels } }
// Enter your code below class Car: Vehicle{ var numberOfSeats: Int = 4
}
class Vehicle {
var numberOfDoors: Int
var numberOfWheels: Int
init(withDoors doors: Int, andWheels wheels: Int) {
self.numberOfDoors = doors
self.numberOfWheels = wheels
}
}
// Enter your code below
class Car: Vehicle{
var numberOfSeats: Int = 4
}
1 Answer
Robert Clayton
5,331 PointsYou need to add a new init.
Declare which init you will override, which is the Vehicles init: init(withDoors doors: Int, andWheels wheels: Int).
Then add the new value to the subclasses init: self.numberOfSeats = 4
Finally declare the new (super)init: (withDoors: doors, andWheels: wheels)
class Vehicle {
var numberOfDoors: Int
var numberOfWheels: Int
init(withDoors doors: Int, andWheels wheels: Int) {
self.numberOfDoors = doors
self.numberOfWheels = wheels
}
}
class Car: Vehicle {
var numberOfSeats: Int = 4
override init(withDoors doors: Int, andWheels wheels: Int) {
self.numberOfSeats = 4
super.init(withDoors: doors, andWheels: wheels)
}
}
let someCar = Car(withDoors: 4, andWheels: 4)