Set creation (setOf, mutableSetOf) in Kotlin - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create an immutable set with elements 1, 2, and 3.

Kotlin

val numbers = [1](1, 2, 3)

Drag options to blanks, or click blank then click option'

AmutableSetOf

BlistOf

CsetOf

DarrayOf

Attempts:

3 left

💡 Hint

Common Mistakes

Using mutableSetOf creates a mutable set, not immutable.

Using listOf creates a list, not a set.

Use setOf to create an immutable set in Kotlin.

2fill in blank

medium

Complete the code to create a mutable set with elements "apple" and "banana".

Kotlin

val fruits = [1]("apple", "banana")

Drag options to blanks, or click blank then click option'

AsetOf

BmutableSetOf

CarrayOf

DlistOf

Attempts:

3 left

💡 Hint

Common Mistakes

Using setOf creates an immutable set that cannot be changed.

Using listOf creates a list, not a set.

Use mutableSetOf to create a set that you can change later.

3fill in blank

hard

Fix the error in the code to create an immutable set of integers.

Kotlin

val nums = setOf[1]1, 2, 3)

Drag options to blanks, or click blank then click option'

A(

B[

C{

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets or curly braces instead of parentheses.

Missing the opening parenthesis.

The setOf function requires parentheses around its arguments.

4fill in blank

hard

Fill both blanks to create a mutable set and add an element "orange".

Kotlin

val fruits = [1]("apple", "banana")
fruits.[2]("orange")

Drag options to blanks, or click blank then click option'

AmutableSetOf

BsetOf

Cadd

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using setOf creates an immutable set that cannot add elements.

Using remove instead of add to insert elements.

Use mutableSetOf to create a mutable set and add to insert a new element.

5fill in blank

hard

Fill all three blanks to create an immutable set of numbers, check if it contains 5, and print the result.

Kotlin

val numbers = [1](1, 2, 3, 4, 5)
val hasFive = numbers.[2](5)
println([3])

Drag options to blanks, or click blank then click option'

AsetOf

Bcontains

ChasFive

DmutableSetOf

Attempts:

3 left

💡 Hint

Common Mistakes

Using mutableSetOf instead of setOf for immutable set.

Printing the function call instead of the variable.

Using wrong method to check membership.

Create an immutable set with setOf, check membership with contains, and print the boolean variable.