kcamp92/ios-control-flow-lab

Control Flow Lab

Instructions for lab submission

1. Fork the assignment repo
2. Clone your Fork to your machine
3. Complete the lab
4. Push your changes to your Fork
5. Submit a Pull Request back to the assignment repo
6. Paste a link to of your Fork on Canvas and submit

Question 1

What will be printed when the code below is run? Select all that apply.

let conditionOne = !(4 < 5) || !(3 > 8)
let conditionTwo = !(!true)

if conditionOne {
 print("A")
} else if conditionTwo {
 print("B")
}
if conditionTwo {
 print("C")
}
print("D")

• A
• B
• C
• D Answer = A,C,D

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Question 2

What will the code block below print? Select all that apply:

let appInfo = (name: "myCoolApp", version: 0.4)
switch appInfo {
 case (_, 0.0..<1.0):
 print("\(appInfo.0) hasn't released yet")
 case ("myCoolApp", _):
 print("Thanks for looking at myCoolApp!")
 default:
 print("I'm not quite sure what you are looking at")
}

• appInfo.0 hasn't released yet
• myCoolApp hasn't released yet
• Thanks for looking at myCoolApp!
• I'm not quite sure what you are looking at
• It will give a compile-time error

Answer= myCoolApp hasnt released yet

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Question 3

What will be printed to the console when the code below is run? Select all that apply.

let x: Int = 4
switch x {
case 0..<4:
 print("A")
case 5..<10:
 print("B")
case is Double:
 print("C")
default:
 print("D")
}

• A
• B
• C
• D

Answer= D

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Question 4

What are the errors in the code below for the switch statement? Select all that apply.

let candyType : String = "skittles"

switch candyType {
case "mAndM":
 print("Melts in your mouth, not in your hand")
case "skittles":
 print("Taste the rainbow")
case "snickers":
 print("Hungry? Grab a Snickers")
}

• No parentheses around the conditions
• No opening and closing brackets in each of the cases
• No default case in the switch statement
• No print statement right outside the switch statement

Answer= No default case in the switch statement

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Question 5

Given the current weather conditions (rain, sunny, snow), use a switch statement to print an appropriate message to the user

let currentWeather = "rain"

// enter code below

let currentWeather = "rain"

switch currentWeather {
case "rain":
print("bring your umbrella")
case "sunny":
print("bring sunglasses")
case "snow":
print("bring your snowboots")
default:
print("idk")
}

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Question 6

Given the first name and last name of a Fellow, declare fullName variable and use string interpolation to concatenate the Fellow's full name and print to the console e.g The Fellow's full name is John Appleseed

let firstName = "John"
let lastName = "Appleseed"

let firstName = "John"
let lastName = "Appleseed"

var fullName = "\(firstName)  \(lastName)"
print ("The Fellow's full name is \(fullName)")

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