Learn
Lists
Review
Excellent work! In this lesson, we’ve learned the following concepts:
- A list is a type of Kotlin Collection that contains ordered elements.
- An immutable list is declared with
listOf
and indicates a list whose values cannot change throughout a program. - A mutable list is declared with
mutableListOf
and indicates a list whose values can be altered. - Elements within a list can be accessed using their index.
- The
size
property returns the number of elements in a collection. - Immutable lists possess read-only functionalities, meanwhile, mutable lists support both read and write functionalities.
- The
contains()
function checks if an element exists in a given list. It returns a Booleantrue
orfalse
. - The
add()
function appends an element to the end of a mutable list. - The
remove()
function removes an element from a mutable list. - The
random()
function generates a random element from a given list.
You’ve covered a major, fundamental programming concept used in most programs to store and manipulate data. Feel free to utilize the empty Review.kt file and output terminal on the right to hone your understanding of lists and practice writing Kotlin code.
Instructions
Click Up Next when you’re ready to move on.