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Mastering Kotlin Essentials

Lists

Learn how to create and manipulate lists in Kotlin, the fundamental collection type. Understand the differences between mutable and read-only lists, how to add or remove elements, and check properties like size and emptiness to manage collections effectively.

We'll cover the following...

Creating a list

The list is the most basic type of collection. We can treat it as the default collection type. It represents an ordered list of elements.

Kotlin 1.5
fun main() {
    val list = listOf("A", "B", "C")
    println(list) // [A, B, C]
}

Generic lists

Note that List is a generic class. The result type of listOf is List<T>, where T is the type of the elements in this list. ...