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
Laurens Van Lieshout
1,892 Pointsgetter setter task: error?
When i check my code for this task, there is an error stating that the value of celsius is wrong. I have been searching for quite a while now, slept over it, reviewed the video, but no cigar... Anyone who can help?
class Temperature {
var celsius: Float = 0.0
var fahrenheit: Float {
get {
return (celsius * 1.8) + 32.0
}
set {
celsius = (fahrenheit-32)/1.8
}
}
}
2 Answers
Matthew Young
5,133 PointsVery close. You just need to change the 'fahrenheit' variable in the setter method to 'newValue'. In Swift, this is the shorthand variable that's used so you don't have to declare a new variable name within the parameters of the method.
class Temperature {
var celsius: Float = 0.0
var fahrenheit: Float {
get {
return (celsius * 1.8) + 32.0
}
set {
celsius = (newValue - 32) / 1.8
}
}
}
Alternatively, if you wanted to get the code you have to work, you would just need to declare the 'fahrenheit' variable within the parameters of the 'set' method, like so.
class Temperature {
var celsius: Float = 0.0
var fahrenheit: Float {
get {
return (celsius * 1.8) + 32.0
}
set(fahrenheit) {
celsius = (fahrenheit - 32) / 1.8
}
}
}
I got stumped on this one myself when I took the course. I hope this helps!
For additional help on this topic, check out this document: Swift Programming Language: Properties. Specifically, check under the "Computed Properties" subsection.
Laurens Van Lieshout
1,892 PointsWoah, thanks! This was definitely a missing link in my logic... This made it clear; much obliged!
Laurens Van Lieshout
1,892 PointsLaurens Van Lieshout
1,892 PointsHere is the task description: 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))
this is the 'bummer'-message: Bummer! The setter method for
fahrenheitdid not assign the right value to thecelsiusproperty. (Note: Celsius = (Fahrenheit-32)/1.8)