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iOS Object-Oriented Swift 2.0 Class Inheritance Creating a Subclass

Posted by mattcleary2
mattcleary2
19,953 Points

My car is not flashing up with an error... still not passing?

Hey guys, confusing matter here,

I initially tried putting:

class car: Vehicle{
    var numberOfSeats: Int 

    override init(withDoors doors: Int, andWheels wheels: Int){
        super.init(withDoors: doors, andWheels: wheels)
        self.numberOfSeats = 4

    }

}

let someCar = car(withDoors: 4, andWheels: 4)

But that didn't pass and the error flagged up as: Property 'numberOfSeats' not initialized at super.init call.

I don't know what was wrong with that.

BUT when I pass the following code. I get no errors.... but the task won't pass?

Any ideas?

Thanks!

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

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: 4, andWheels: 4)

1 Answer

Michael Jones
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.a{fill-rule:evenodd;}techdegree seal-36
Michael Jones
Python Development Techdegree Graduate 38,552 Points
Michael Jones
.a{fill-rule:evenodd;}techdegree seal-36
Michael Jones
Python Development Techdegree Graduate 38,552 Points

I used this and it worked - 

class Car: Vehicle {
    let numberOfSeats: Int = 4

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

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

Hope this helps.

Happy Coding!!

Michael J