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iOS Object-Oriented Swift Properties Getter and Setter Methods

Bryan Bastida
Bryan Bastida
1,861 Points

having an issue with getters and setters

class Temperature {
    var celsius: Float = 0.0

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

We need to add getter and setter methods to the fahrenheit property of the Temperature class. Add a getter method to the access the value of the fahrenheit property. Then add a setter method. When the user assigns a value to the fahrenheit property, the setter method will calculate and assign a value to the celsius property. (Note: Celsius = (Fahrenheit-32)/1.8))

Bummer! The setter method for fahrenheit did not assign the right value to the celsius property. (Note: Celsius = (Fahrenheit-32)/1.8)

1 Answer

Marina Alenskaja
Marina Alenskaja
9,320 Points

Hey

The error is due to the fact that you need the newValue instead of fahrenheit, since the user can input a new value to the function. If that makes sense :)

class Temperature {
    var celsius: Float = 0.0

    var fahrenheit : Float {
      get {
        return (celsius * 1.8) + 32
      }
      set {
        celsius = (newValue - 32) / 1.8
      }
    }
}
Bryan Bastida
Bryan Bastida
1,861 Points

yes, thank you so much. i had actually figured it out last night but forgot to take down the comment lol. but thanks anyways!