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 trial

iOS Object-Oriented Swift Class Inheritance Overriding Methods

Gabriel Moreno
Gabriel Moreno
3,579 Points

Swift 3 - Override

I can't seem to figure out how to pass this code challenge. Please help.

TIA

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

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

2 Answers

David Papandrew
David Papandrew
8,386 Points

Hi Gabriel,

You are super close, but one little typo is preventing your code from passing: You left off the leading backslash in the return statement for the fullName method in the Doctor class (so your string won't interpolate correctly).

class Doctor: Person {
  override func fullName() -> String { 
    return "Dr. \(lastName)" // <== MAKE SURE YOU FIX THIS LINE 
  } 
}