[Help!] What is wrong with my super.init?

Hi Sheng,

It's partially a syntactical issue concerning your super.init statement (in your example, you want to supply withDoors with doors, and andWheels with wheels, instead of stating doors and wheels twice on both sides of the colon.) Try replacing:

super.init(withDoors doors: doors, andWheels wheels: wheels)

with:

super.init(withDoors: doors, andWheels: wheels)

You also want to capitalize the name of your Car class (case sensitivity)...

class Car: Vehicle {

...and appropriately reference it later with your constant (while referencing withDoors and andWheels, rather than doors and wheels):

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

Since you have numberOfSeats declared as a bool, it cannot be set to the value of 4. Let's try making it of type Int so that we can do that:

var numberOfSeats: Int

Your self.NumberOfSeats statement is currently after the super.init statement. Because of this, we get the error 'property 'self.numberOfSeats' not initialized at super.init call'. So, let's move it up:

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

Finally, we're missing a second closing brace, since we need to enclose the Car class (to properly contain it.)

Your final code might look something like this:

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

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

Hope this helps!