Can't finish this challenge

Question

Hello,
Please could you explain me in details how to finish this challenge?
My class seems good, but i don't know how to make the init method in it.
```objects.swift
class Shape {
    var numberOfSides: Int = 0
init() {
     self.numberOfSides = numberOfSides
}
}
let someShape = Shape
```

Daniel Santos · Accepted Answer

@Theo VOGLIMACCI (https://teamtreehouse.com/theovoglimacci),
As you pointed, there is a problem in your init method. If you look closely, you are trying to assign self.numberOfSides = numberOfSides. But where is the numberOfSides coming from? Remember, you should get this as an argument. For example:
```swift
class Person {
   let firstName: String
   let lastName: String
   init(firstName: String, lastName: String) {
       self.firstName = firstName  // I am getting this firstName from the argument above
       self.lastName = lastName   // Same thing here.
   }
}
```
I made an example with a different class just to stimulate your brain, but if you still stuck please let me know.
-Dan

Theo VOGLIMACCI · Answer

Well much thanks Daniel,
Here is the full answer if someone needs help aswell.
``` swift
// Enter your code below
class Shape {
  var numberOfSides : Int
  init(numberOfSides: Int) { //as you mentioned I forgot to declare NumberOfSides as an argument in the init method
  self.numberOfSides = numberOfSides 
  }
}
let someShape = Shape(numberOfSides: 4)
```

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Theo VOGLIMACCI

Theo VOGLIMACCI

Can't finish this challenge

2 Answers

Daniel Santos

Daniel Santos

Theo VOGLIMACCI

Theo VOGLIMACCI

Daniel Santos

Daniel Santos