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iOS Object-Oriented Swift 2.0 Class Inheritance Creating a Subclass

Posted by Shikhar Prateek
Shikhar Prateek
13,908 Points

I am not able to understand this question

Not able to understand

classes.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

1 Answer

Kieran Black
Kieran Black
9,139 Points

Hi Shikhar,

They are asking you to create a subclass of the provided class Vehicle that extends the functionality and has an additional property ** numberOfSeats**.

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)

Hope that helps

KB :octopus:

Shikhar Prateek
Shikhar Prateek
13,908 Points

Thanks a lot. Got it