Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialNils Sens
9,654 PointsI get an extra arg error. why?
I tried to copy the structure from the lessons. Did I miss something?
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)"
}
}
// Enter your code below
class Doctor: Person {
override init (firstName: String, lastName: String){
super.init (firstName:firstName, lastName:lastName){
func fullName() -> String {
return "Dr. \(lastName)"
}
}
}
}
let someDoctor = Doctor(firstName:"Sam", lastName:"Smith")
2 Answers
Maria Angelica Dadalt
6,197 PointsThe problem here is that you only need to override the superclass' method, not the initializer. Since the Doctor subclass has no properties, you have nothing to initialize.
The class should look like this:
class Doctor: Person {
override func fullName() -> String {
return "Dr. \(lastName)"
}
}
Nils Sens
9,654 Pointsamazing, thank you for taking the time!! :)