Object Oriented Swift Final Exam

Hi Mia Pivirotto, You were pretty much right but I advise following a rule of thumb which is starting new lines for various things you do. Your code was pretty much right but when I spaced it out and put things on their own lines and what not (demonstrated in code below) I noticed an extra curly brace or so, I believe this was throwing an error. However here is your code just laid out differently:

import Foundation

class Shape {
    let sides: Int
    let name: String

    init(sides: Int, name: String){
        self.sides = sides
        self.name = name
    }
}


class Square: Shape {
    var sideLength: Double
    var area: Double {
        get {
            return sideLength * sideLength
            }
        set {
            sideLength = sqrt(newValue)
            }
        }

    init(name: String, sides: Int, sideLength: Double) {
        self.sideLength = sideLength
        super.init(sides: sides, name: name)
    }

    convenience init (sideLength: Double){
        self.init(name: "Square", sides: 4, sideLength:sideLength)
    }
}

let square = Square(sideLength: 20)
square.name
square.sides
square.sideLength

Also one thing that would have thrown you an error would have been "sqrt", you need to make sure if you work in xcode playground you import Foundation at the top for this to work. I'm no expert in Swift but taking on good practices like spacing and laying code out in a readable manner (so curly braces and brackets are on their own lines) although its not essential, it can help you spot tiny little errors.

But well done anyway you pretty much nailed the task! hope I helped you out, Mark this as the answer if you agree it really helps me and lets others know there is a correct answer with a big green tick ahah. Just post a comment if you need anymore help.

Thanks Dom