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 Properties Getter and Setter Methods

William Bergstein
William Bergstein
2,078 Points

It says I have the right value to Celsius, but it seems to me like I used exactly what it told me to. What is wrong here

I don't understand what is wrong with my code. I have no syntactical errors, but it says that I have not given celsius the right value even though I used the conversion that it gave me in the prompt.

Temperature.swift
class Temperature {
    var celsius: Float = 0.0
    var fahrenheit: Float {
      get{
          return (celsius * 1.8) + 32.0
      }
      set {
          celsius = (fahrenheit - 32) / 1.8
      }
   }    
}

1 Answer

You must put newValue instead fahrenheit in setter like this

class Temperature {
    var celsius: Float = 0.0
    var fahrenheit: Float {
      get{
          return (celsius * 1.8) + 32.0
      }
      set {
          celsius = (newValue - 32) / 1.8
      }
   }    
}