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iOS Object-Oriented Swift Value vs Reference Types Final Challenge

Posted by Brandon Wyles
Brandon Wyles
2,533 Points

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
Caleb Kleveter
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.

Brandon Wyles
Brandon Wyles
2,533 Points

Thanks i will have a look :)

Brandon Wyles
Brandon Wyles
2,533 Points

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)
    }
}