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iOS Object-Oriented Swift 2.0 Class Inheritance Creating a Subclass

trying to make a inheritance of a class

please help me out with my code, I could not find what's wrong.

classes.swift
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) {
    super.init(withDoors: doors, andWheels: wheels)
    }

}
let someCar = car(withDoors: 2, andWheels: 6)



// Enter your code below

1 Answer

Hi Arun,

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

The completed code looks something like that above. With the new Class you don't need another initializer as you have given numberOfSeats a default value.

So if you were to do a print on 'someCar' you would see it has 2 doors, 4 wheels and 4 seats.

Cheers, Marc