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iOS Object-Oriented Swift Value vs Reference Types Final Challenge

Posted by Sander van Tilburg
Sander van Tilburg
Courses Plus Student 2,521 Points

I'm stuck

i got this error, what do i need to do next?

swift_lint.swift:18:5: error: super.init isn't called before returning from initializer } ^

Vehicle.swift 
class Vehicle {
    let wheels: Int
    let doors: Int

    // Designated initializer
    init(wheels:Int, doors:Int){
        self.wheels = wheels
        self.doors = doors
    }
}

class Car: Vehicle {
    // A car must default to 4 wheels and 4 doors
    init(){
      // call super.init
    }
}

1 Answer

elfproductivity
elfproductivity
10,489 Points

Replace the comment ("call super.init") with "super.init(4, 4)". This will call the super class' (Vehicle's) init method, which takes two parameters, the number of wheels, and the number of doors.