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

iOS Object-Oriented Swift Classes in Swift Instances of Classes

Posted by Sahan Balasuriya
Sahan Balasuriya
10,115 Points

Not sure where im going wrong

Swift

class Shape{
  var numberOfSides: Int

  init(sides numberOfSides: Int){
    self.numberOfSides = numberOfSides
  }
}

let someShape = Shape(sides: 3)
objects.swift 
// Enter your code below
class Shape {
var numberOfSides: Int;

init(numberOfSides: Int){
    self.numberOfSides = numberOfSides
  }

}

let someShape = Shape(sides: 3)

3 Answers

Magnus Hållberg
Magnus Hållberg
17,232 Points
Magnus Hållberg
Magnus Hållberg
17,232 Points

The init input name in the class and in the instance don't match. Its "numberOfSides" in the class and "sides" in the instance, they need to be the same.

Taylor Smith
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points
Taylor Smith
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

Sahan Balasuriya if you're not already, it's helpful to do these code challenges in a playground. That way you can see errors in real time and would be easier to find the issue!

Sahan Balasuriya
Sahan Balasuriya
10,115 Points
Sahan Balasuriya
Sahan Balasuriya
10,115 Points

i got it working here is the answer

// Enter your code below
class Shape {
var numberOfSides: Int

init(sides numberOfSides: Int) {
self.numberOfSides = numberOfSides
  }
}

let someShape = Shape(sides: 3)