fun <T> mutableSetOf(): MutableSet<T>
Returns an empty new MutableSet.
The returned set preserves the element iteration order.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val set = mutableSetOf<Int>()
println("set.isEmpty() is ${set.isEmpty()}") // true
set.add(1)
set.add(2)
set.add(1)
println(set) // [1, 2]
//sampleEnd
}fun <T> mutableSetOf(vararg elements: T): MutableSet<T>
Returns a new MutableSet with the given elements. Elements of the set are iterated in the order they were specified.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val set = mutableSetOf(1, 2, 3)
println(set) // [1, 2, 3]
set.remove(3)
set += listOf(4, 5)
println(set) // [1, 2, 4, 5]
//sampleEnd
}
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/mutable-set-of.html