Could someone please help me answer some Swift programming questions? Thanks, I

Question

Could someone please help me answer some Swift programming questions? Thanks, I will thumbs up!

1. Given the following in Swift:

class User {
let firstName: String
let lastName: String
let userID: String

init(firstName: String, lastName: String, userID: String) {
self.firstName = firstName
self.lastName = lastName
self.userID = userID
}
}

Which of the following is the correct way to create an instance of User?

A. var user = User("Sally", "Garcia", "sgarcia")

B. var user = User(firstName: "Sally", lastName: "Garcia", userID: "sgarcia")

C. var user = new User("Sally", "Garcia", "sgarcia")

D. var user = new User(firstName: "Sally", lastName: "Garcia", userID: "sgarcia")

.

2. You must decide what determines if two instances are equal when you create your own classes and structures.

A. True

B. False

.

3. Given the following in Swift:

struct Kilometers {
var kilometers: Double

init(fromMiles miles: Double) {
kilometers = miles * 1.60934
}

init(fromMeters meters: Double) {
kilometers = meters / 1000.0
}
}

Which of the following is the correct way to create an instance of the struct if the known distance is in miles?

A. let distance = Kilometers(fromMiles: 2.5)

B. let distance = Kilometers(miles: 2.5)

C. let distance = new Kilometers(fromMiles: 2.5)

D. let distance = new Kilometers(miles: 2.5)

E. let distance =Kilometers(2.5 as miles)

.
4. Objects are comprised of data variables and functions. The data variables and functions are referred to as class members. Which of the following is the name used for data variables in an object?

A. methods

B. optionals

C. properties

D. characteristics

Explanation / Answer

QUESTION 1: B. var user = User(firstName: "Sally", lastName: "Garcia", userID: "sgarcia") QUESTION 2: A. True QUESTION 3: A. let distance = Kilometers(fromMiles: 2.5) QUESTION 4: C. properties

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