fun <T> listOf(vararg elements: T): List<T>
Returns a new read-only list of given elements. The returned list is serializable (JVM).
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val list = listOf('a', 'b', 'c')
println(list.size) // 3
println("list.contains('a') is ${list.contains('a')}") // true
println(list.indexOf('b')) // 1
println(list[2]) // c
//sampleEnd
}fun <T> listOf(): List<T>
Returns an empty read-only list. The returned list is serializable (JVM).
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val list = listOf<String>()
println("list.isEmpty() is ${list.isEmpty()}") // true
// another way to create an empty list,
// type parameter is inferred from the expected type
val other: List<Int> = emptyList()
// Empty lists are equal
println("list == other is ${list == other}") // true
println(list) // []
// list[0] // will fail
//sampleEnd
}fun <T> listOf(element: T): List<T>
Returns an immutable list containing only the specified object element. The returned list is serializable.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val list = listOf('a')
println(list) // [a]
println(list.size) // 1
//sampleEnd
}Returns an immutable list containing only the specified object element.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/list-of.html