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iOS Object-Oriented Swift Properties Getter and Setter Methods

Collin Keating
Collin Keating
1,797 Points
Posted by Collin Keating
Collin Keating
1,797 Points

What am I doing wrong

It says my setter method is messed up but where and how? Thanks !

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

James Attree
James Attree
7,906 Points
James Attree
James Attree
7,906 Points

I think you're going wrong because you're not telling the Fahrenheit setter what variable to use.

E.G.

var Temp = Temperature()
Temp.Fahrenheit = 72.0

Where does the 72.0 go?

I believe you need to add a parameter to your setter

class Temperature {
    var celsius: Float = 0.0
    var fahrenheit: Float {
    get{
        return (celsius * 1.8) + 32.0
    }  
    set(fahrenheitValue){
        celsius = (fahrenheitValue - 32) / 1.8
    } 
    }    
}
Collin Keating
Collin Keating
1,797 Points
Collin Keating
Collin Keating
1,797 Points

That was it ! I didn't know that setters could have parameters, I don't remember the videos ever saying that they could accept parameters. Thank you for your help!