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mattcleary2
19,953 Pointscompletely lost here, please help
evening guys,
Completely lost here!
am I still supposed to be overriding the init as well as the function?
So many possibilities running through my head for this, any help with explanations would be very very much appreciated.
Thankyou :)
class Person {
let firstName: String
let lastName: String
init(firstName: String, lastName: String) {
self.firstName = firstName
self.lastName = lastName
}
func getFullName() -> String {
return "\(firstName) \(lastName)"
}
}
// Enter your code below
class Doctor: Person {
override init(firstName: "Dr", lastName: String){
super.init(firstName: firstName, lastName: lastName)
}
override func getFullName() -> String {
return "\(firstName). \(lastName)"
}
}
let someDoctor = Doctor.getFullName(firstName: "Sam", lastName: "Smith")
3 Answers
Greg Kaleka
39,021 PointsHi Matt,
If we think about this logically, all we need to do is add "Dr." to and remove the first name from the person's "full" name, but we definitely don't want to change the person's first name just because they got a medical degree :).
Instead, simply override the getFullName() method so it returns "Dr." in place of the first name.
class Person {
let firstName: String
let lastName: String
init(firstName: String, lastName: String) {
self.firstName = firstName
self.lastName = lastName
}
func getFullName() -> String {
return "\(firstName) \(lastName)"
}
}
// Enter your code below
class Doctor: Person {
override func getFullName() -> String { // this is the only method to override
return "Dr. \(lastName)"
}
}
let somePerson = Person(firstName: "Sam", lastName: "Smith")
somePerson.getFullName()
let someDoctor = Doctor(firstName: "Sam", lastName: "Smith")
someDoctor.getFullName() // Returns "Dr. Smith"
Let me know if this makes sense!
mattcleary2
19,953 PointsIt does, thank you.
We didn't have to override the initializer because we didn't actually change any of the stored properties?
Greg Kaleka
39,021 PointsExactly - nothing about initialization needs to be changed. There are times when you might need to override an init method for reasons other than changing stored properties, but in this case that's all we have, so your reasoning is correct.
mattcleary2
19,953 PointsThanks, Greg!