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iOS Object-Oriented Swift Class Inheritance Overriding Methods

What's wrong!!

Im a bit stuck in this challenge. Help please!!

This is the question: I've provided a base class Person in the editor below. Once an instance of Person is created, you can call fullName() and get a person's full name.

Your job is to create a class named Doctor that overrides the fullName() method. Once you have a class definition, create an instance and assign it to a constant named someDoctor.

For example, given the first name "Sam", and last name "Smith", calling fullName() on an instance of Person would return "Sam Smith", but calling the same method on an instance of Doctor would return "Dr. Smith".

objects.swift
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 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 func fullName() -> String {
        return "Dr. \(lastName)"
    }
}

let someDoctor = Doctor(firstName: "Sam",  lastName: "Smith")   
let fullName = someDoctor.getFullName()

1 Answer

Dan Weru
Dan Weru
47,637 Points

Hi,

Make sure that you call fullName() instead of getFullName() like so

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

let someDoctor = Doctor(firstName: "Sam",  lastName: "Smith")   
someDoctor.fullName()

Im still getting an error.

Dan Weru
Dan Weru
47,637 Points

Don’t repeat the Person class