Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Object-Oriented Swift Inheritance Overriding Methods

Ryan Joo
Ryan Joo
3,312 Points

I put override func incrementBy(_ points: Double = 7.0) -> Double {} but not getting the right answer. I'm stuck

I'm not sure where I went wrong here

Button.swift
class Button {
  var width: Double
  var height: Double

  init(width:Double, height:Double){
    self.width = width
    self.height = height
  }

  func incrementBy(points: Double){
    width += points
    height += points
  }
}

class RoundButton: Button {
  var cornerRadius: Double = 5.0

  override func incrementBy(_ points: Double = 7.0) -> Double {
  }  
}

1 Answer

Hello Ryan:

class RoundButton: Button {
  var cornerRadius: Double = 5.0

  override func incrementBy(points: Double){
  width += 7.0
  height += 7.0
  }
}