kotlin-stdlib/kotlin.collections/LinkedHashMap

LinkedHashMap

expect class LinkedHashMap<K, V> : MutableMap<K, V>

actual typealias LinkedHashMap = LinkedHashMap<K, V>

actual open class LinkedHashMap<K, V> : HashMap<K, V> , MutableMap<K, V>

Hash table based implementation of the MutableMap interface, which additionally preserves the insertion order of entries during the iteration.

The insertion order is preserved by maintaining a doubly-linked list of all of its entries.

actual typealias LinkedHashMap = HashMap<K, V>

Constructors

LinkedHashMap

expect fun LinkedHashMap()

actual fun LinkedHashMap()

Constructs an empty LinkedHashMap instance.

LinkedHashMap

expect fun LinkedHashMap(initialCapacity: Int)

actual fun LinkedHashMap(initialCapacity: Int)

LinkedHashMap

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

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

Constructs an empty LinkedHashMap instance.

LinkedHashMap

expect fun <K, V> LinkedHashMap(original: Map<out K, V>)

actual fun <K, V> LinkedHashMap(original: Map<out K, V>)

Constructs an instance of LinkedHashMap filled with the contents of the specified original map.

Functions

clear

expect open override fun clear()

actual open override fun clear()

Removes all elements from this map.

containsKey

expect open override fun containsKey(key: K): Boolean

actual open override fun containsKey(key: K): Boolean

Returns true if the map contains the specified key.

containsValue

expect open override fun containsValue(value: V): Boolean

actual open override fun containsValue(value: V): Boolean

Returns true if the map maps one or more keys to the specified value.

equals

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

Compares this map with other instance with the ordered structural equality.

get

expect open operator override fun get(key: K): V?

actual open operator override fun get(key: K): V?

Returns the value corresponding to the given key, or null if such a key is not present in the map.

getOrDefault

open fun getOrDefault(key: K, defaultValue: V): V

Returns the value corresponding to the given key, or defaultValue if such a key is not present in the map.

Since Kotlin

1.1

hashCode

open override fun hashCode(): Int

Returns the hash code value for this map.

isEmpty

expect open override fun isEmpty(): Boolean

open override fun isEmpty(): Boolean

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

put

expect open override fun put(key: K, value: V): V?

actual open override fun put(key: K, value: V): V?

Associates the specified value with the specified key in the map.

putAll

expect open override fun putAll(from: Map<out K, V>)

remove

expect open override fun remove(key: K): V?

actual open override fun remove(key: K): V?

Removes the specified key and its corresponding value from this map.

open fun remove(key: K, value: V): Boolean

Removes the entry for the specified key only if it is mapped to the specified value.

Since Kotlin

1.1

toString

open override fun toString(): String

fun toString(entry: Map.Entry<K, V>): String

Properties

entries

expect open override val entries: MutableSet<MutableMap.MutableEntry<K, V>>

keys

expect open override val keys: MutableSet<K>

size

expect open override val size: Int

actual open override val size: Int

Returns the number of key/value pairs in the map.

values

expect open override val values: MutableCollection<V>