kotlin-stdlib/kotlin.collections/HashSet

HashSet

expect class HashSet<E> : MutableSet<E>

actual typealias HashSet = HashSet<E>

actual open class HashSet<E> : AbstractMutableSet<E> , MutableSet<E>

The implementation of the MutableSet interface, backed by a HashMap instance.

actual class HashSet<E> : AbstractMutableSet<E> , MutableSet<E> , KonanSet<E>

Constructors

HashSet

expect fun HashSet()

actual fun HashSet()

Constructs a new empty HashSet.

actual fun HashSet()

HashSet

expect fun HashSet(initialCapacity: Int)

actual fun HashSet(initialCapacity: Int)

HashSet

expect fun HashSet(initialCapacity: Int, loadFactor: Float = 0.0f)

actual fun HashSet(initialCapacity: Int, loadFactor: Float = 0.0f)

Constructs a new empty HashSet.

actual fun HashSet(initialCapacity: Int, loadFactor: Float = 0.0f)

HashSet

expect fun <E> HashSet(elements: Collection<E>)

actual fun <E> HashSet(elements: Collection<E>)

Constructs a new HashSet filled with the elements of the specified collection.

actual fun <E> HashSet(elements: Collection<E>)

Functions

add

expect open override fun add(element: E): Boolean

actual open override fun add(element: E): Boolean

Adds the specified element to the set.

actual open override fun add(element: E): Boolean

Adds the specified element to the set.

addAll

expect open override fun addAll(elements: Collection<E>): Boolean

actual open override fun addAll(elements: Collection<E>): Boolean

Adds all of the elements of the specified collection to this collection.

clear

expect open override fun clear()

actual open override fun clear()

Removes all elements from this collection.

actual open override fun clear()

Removes all elements from this collection.

contains

expect open operator override fun contains(element: @UnsafeVariance E): Boolean

actual open operator override fun contains(element: E): Boolean

Checks if the specified element is contained in this collection.

actual open operator override fun contains(element: E): Boolean

Checks if the specified element is contained in this collection.

containsAll

expect open override fun containsAll(elements: Collection<@UnsafeVariance E>): Boolean

open override fun containsAll(elements: Collection<E>): Boolean

Checks if all elements in the specified collection are contained in this collection.

abstract override fun containsAll(elements: Collection<E>): Boolean

Checks if all elements in the specified collection are contained in this collection.

equals

open operator override fun equals(other: Any?): Boolean

Compares this set with another set instance with the unordered structural equality.

getElement

open override fun getElement(element: E): E?

Searches for the specified element in this set.

hashCode

open override fun hashCode(): Int

Returns the hash code value for this set.

isEmpty

expect open override fun isEmpty(): Boolean

actual open override fun isEmpty(): Boolean

Returns true if the collection is empty (contains no elements), false otherwise.

actual open override fun isEmpty(): Boolean

Returns true if the collection is empty (contains no elements), false otherwise.

iterator

expect open operator override fun iterator(): MutableIterator<E>

actual open operator override fun iterator(): MutableIterator<E>

Returns an iterator over the elements of this object.

actual open operator override fun iterator(): MutableIterator<E>

Returns an iterator over the elements of this object.

remove

expect open override fun remove(element: E): Boolean

actual open override fun remove(element: E): Boolean

Removes a single instance of the specified element from this collection, if it is present.

actual open override fun remove(element: E): Boolean

Removes a single instance of the specified element from this collection, if it is present.

removeAll

expect open override fun removeAll(elements: Collection<E>): Boolean

actual open override fun removeAll(elements: Collection<E>): Boolean

Removes all of this collection's elements that are also contained in the specified collection.

retainAll

expect open override fun retainAll(elements: Collection<E>): Boolean

actual open override fun retainAll(elements: Collection<E>): Boolean

Retains only the elements in this collection that are contained in the specified collection.

toJSON

open fun toJSON(): Any

toString

open override fun toString(): String

Properties

size

expect open override val size: Int

actual open override val size: Int

Returns the size of the collection.

Inheritors

LinkedHashSet