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iOS Object-Oriented Swift Value vs Reference Types Final Challenge

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

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.