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iOS Object-Oriented Swift Class Inheritance Creating a Subclass

Michel Ortega
Michel Ortega
2,279 Points
Posted by Michel Ortega
Michel Ortega
2,279 Points

Expected separator ?

Why am I getting this error? <Expected ',' separator> ?

objects.swift 
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 =  4

    override init(withDoors doors: Int, andWheels wheels: Int){
        super.init( withDoors doors: doors, andWheels wheels:  wheels )

    }

}

let someCar = Car(withDoors: 2, andWheels: 4)
someCar.numberOfSeats

1 Answer

Michael Ayoub
Michael Ayoub
7,689 Points

This is the correct code: 

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
}

let someCar = Car(withDoors: 2, andWheels: 4)

You should remove doors and wheels when making the instance of Car which is someCar And there is no need to reinitialize the Car class since it is already initialized in its parent class and because numberOfSeats has a value.

Michel Ortega
Michel Ortega
2,279 Points
Michel Ortega
Michel Ortega
2,279 Points

Thanks a lot. KISS then... xoxo