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iOS

s t
s t
2,699 Points
Posted by s t
s t
2,699 Points

Overriding Methods Objective Swift

I have passed this objective using the following code but I would like to know why I didn't have to initialize Doctor? can someone please explain. Thanks

2 Answers

Jonathan Ruiz
Jonathan Ruiz
2,998 Points
Jonathan Ruiz
Jonathan Ruiz
2,998 Points

This is the code I had for the challenge. I was confused when this happened to me to however I think its because what your doing is overriding a function. If you do this challenge in Xcode and override the function when you create the constant someDoctor then create an instance of Doctor. Xcode autocompletes it to include the firstName parameter even though our new function returns a string where thats taken out. So your not affecting the initializer your changing the fullName method. 

class Person {
    let firstName: String
    let lastName: String

    init(firstName: String, lastName: String) {
        self.firstName = firstName
        self.lastName = lastName
    }

    func fullName() -> String {
        return "\(firstName) \(lastName)"
    }
}

class Doctor: Person {
    override func fullName() -> String {
        return "Dr. \(lastName)"
    }
}


let someDoctor = Doctor(firstName: "Elliot", lastName: "Alderson")
print(someDoctor)
s t
s t
2,699 Points
s t
s t
2,699 Points

Thanks! That kinda makes sense!

Jonathan Ruiz
Jonathan Ruiz
2,998 Points
Jonathan Ruiz
Jonathan Ruiz
2,998 Points

Happy to help ! Im pretty sure thats what it is