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iOS Object-Oriented Swift Class Inheritance Creating a Subclass

Posted by Disha Mohta
Disha Mohta
2,248 Points

how do I fix the error?

I'm not sure how to do this challenge

objects.swift 
class Car: Vehicle {
    var numberOfSeats: Int

    init(withDoors doors: Int, andWheels wheels: Int, andSeats seats: Int){
        self.numberOfSeats = seats
        super.init(withDoors: doors, andWheels: wheels)
    }
}

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

1 Answer

Jorge Solana
Jorge Solana
6,064 Points
Jorge Solana
Jorge Solana
6,064 Points

Here's your problem:

Your task is to create a subclass of Vehicle, named Car, that adds an additional stored property numberOfSeats of type Int with a default value of 4.

In your code you're not initializing numberOfSeats to 4. Also, since a car normally have 4 wheels, I don't think you need to write any init code in the subclass and you can use the fathers instead just with the 2 parameters.

If you still encounter problems, we will stick around.