HashMap

fun HashMap()

Constructs an empty HashMap instance.

HashMap

fun HashMap(initialCapacity: Int)

HashMap

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

Constructs an empty HashMap instance.

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

HashMap

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

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

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

clear

Common

open override fun clear()

Removes all elements from this map.

containsKey

Common

open override fun containsKey(key: K): Boolean

Returns true if the map contains the specified key.

containsValue

Common

open override fun containsValue(value: @UnsafeVariance V): Boolean

open override fun containsValue(value: V): Boolean

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

equals

JS

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

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

Native

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

get

Common

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

JS

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

Native

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

JS

open override fun hashCode(): Int

Returns the hash code value for this map.

Native

open override fun hashCode(): Int

isEmpty

open override fun isEmpty(): Boolean

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

Common

open override fun isEmpty(): Boolean

put

Common

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

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

putAll

Common

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

Native

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

Updates this map with key/value pairs from the specified map from.

remove

Common

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

open override fun toString(): String

entries

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

Returns a MutableSet of all key/value pairs in this map.

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

Returns a MutableSet of all key/value pairs in this map.

keys

open override val keys: MutableSet<K>

Returns a MutableSet of all keys in this map.

size

open override val size: Int

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

open override val size: Int

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

values

open override val values: MutableCollection<V>

Returns a MutableCollection of all values in this map. Note that this collection may contain duplicate values.

LinkedHashMap

HashMap

Constructors

Functions

Since Kotlin

Since Kotlin

Since Kotlin

Properties

Inheritors