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iOS Object-Oriented Swift 2.0 Class Inheritance Creating a Subclass

Posted by ks krishnakanth
ks krishnakanth
219 Points

I am not able to rectify this error

missing argument for parameter 'wheels' in call super.init(doors: Int,wheels: Int);

classes.swift 
class Vehicle {
    var numberOfDoors: Int
    var numberOfWheels: Int

    init(doors: Int,wheels: Int) {
        self.numberOfDoors = doors
        self.numberOfWheels = wheels
    }
}

// Enter your code below
class Car: Vehicle
{
  var numberOfSeats: Int = 4;
  override init(doors: Int,wheels: Int)
  {
      super.init(doors: Int,wheels: Int);
  }
}
Ramiro Martinez
Ramiro Martinez
13,858 Points

First, you only have to put the numberOfSeats property, don't call de init and the super init, because it already inherited form Vehicle's class, and then you have to make an instance of the class Car. You can look to my 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: 4, andWheels: 4)


          ```
Damien Watson
Damien Watson
27,419 Points

Ramiro, did you put this in as a comment instead of an answer?