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iOS Object-Oriented Swift Value vs Reference Types Final Challenge

Solution to this task?

Just can't get my head around what its asking

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(){
      // call super.init
    }
}

1 Answer

Caleb Kleveter
MOD
Caleb Kleveter
Treehouse Moderator 37,862 Points

It wants you to look at the preview errors so you know what is wrong with the code.

Thanks i will have a look :)

Finally got round to completing this - got this solution....

class Vehicle {
    var wheels: Int
    var doors: Int

    // Designated initializer
    init(wheels:Int, doors:Int){
        self.wheels = 4
        self.doors = 4
    }
}

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