
Exploring Swift Basics
Quiz
•
Information Technology (IT)
•
10th Grade
•
Practice Problem
•
Medium
Jaesan Ryfle-Turi
Used 2+ times
FREE Resource
Enhance your content in a minute
19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Grace wants to greet her classmates in Swift. Which code should she use to print a friendly message?
echo 'Hello, World!'
System.out.println('Hello, World!')
print('Hello World!')
print("Hello, World!")
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elijah and Lily are building a cool Swift app together! They need to store the number of apples they collected. Which basic data type should they use for whole numbers in Swift?
String
Int
Float
Double
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
James and Ava are having a debate in class. James says the result of the Boolean expression true && false is true, while Ava disagrees. Who is correct? What is the result of the expression?
false
true
true || false
false && true
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Emma wants to make sure her favorite number never changes in her Swift code. Which of the following is the correct way for Emma to declare a constant?
define constantName = value
const constantName = value
let constantName = value
var constantName = value
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arjun wants to create a list of his favorite numbers in Swift. Which of the following is the correct way for Arjun to create an array of integers?
let arrayName = [1, 2, 3]
let arrayName = Int[]
var arrayName = [Int]{}
let arrayName = new Array
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Henry, David, and Mason are learning Swift together. They come across the forEach function and wonder what it does. Can you help them figure it out?
The forEach function runs some code for each element in a collection.
The forEach function filters elements based on a condition.
The forEach function sorts elements in a collection.
The forEach function returns a new collection of elements.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aiden is learning Swift and wants to show the value of his variable myVariable on the screen. Which line of code should Aiden use to print it out?
print(myVariable)
display(myVariable)
echo myVariable
log(myVariable)
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