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 2.0 Classes Classes with Custom Types

Julien Schmitt
Julien Schmitt
2,334 Points
Posted by Julien Schmitt
Julien Schmitt
2,334 Points

Cannot declare instance of business; why?

Hi everyone,

Im trying to declare the instance of business to someBusiness but I guess I did something wrong in the initializer.

Any suggestions?

Thanks,

Julien

classes.swift 
struct Location {
    let latitude: Double
    let longitude: Double

      class Business {
        let name: String
        let location: Location

        init(name: String, location: Location) {
            self.name = name
            self.location = location
        }
    }
}

let someBusiness = Business()

1 Answer

Anjali Pasupathy
Anjali Pasupathy
28,883 Points
Anjali Pasupathy
Anjali Pasupathy
28,883 Points

You need to take your Business class out of your Location struct.

Also, when initializing Business, you need to pass in a name parameter and a location parameter.

I hope this helps!

Julien Schmitt
Julien Schmitt
2,334 Points
Julien Schmitt
Julien Schmitt
2,334 Points

Hi Anjali,

Took out my business class and added parameters however when declaring the instance and filling it with values, I'm still getting an error. Guess I did something wrong in the init method ?

let SomeBusiness = Business(name: "Amsterdam", location: 2.0)

Anjali Pasupathy
Anjali Pasupathy
28,883 Points
Anjali Pasupathy
Anjali Pasupathy
28,883 Points

Hello Julien,

You've nearly got it! For location, you need to pass in a Location object, which takes the following form:

Location(latitude: /* PUT LATITUDE HERE */, longitude: /* PUT LONGITUDE HERE */)

I hope this helps!