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iOS Object-Oriented Swift Value vs Reference Types Final Challenge

Value vs Reference Type

How do I get through this??

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

    // Designated initializer
    init(wheels:Int, doors:Int){

    }
}

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

1 Answer

The answer should look like this.

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
      super.init(wheels: 4, doors: 4)
    }
}

Where did you get stuck?