kotlin-stdlib/kotlin.collections/LinkedHashMap

LinkedHashMap

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

typealias LinkedHashMap = LinkedHashMap<K, V>
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typealias LinkedHashMap = HashMap<K, V>
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Constructors

LinkedHashMap
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fun LinkedHashMap()
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fun LinkedHashMap()
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Constructs an empty LinkedHashMap instance.

LinkedHashMap
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fun LinkedHashMap(initialCapacity: Int)
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fun LinkedHashMap(initialCapacity: Int)
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LinkedHashMap
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fun LinkedHashMap(initialCapacity: Int, loadFactor: Float = 0.0f)
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fun LinkedHashMap(initialCapacity: Int, loadFactor: Float = 0.0f)
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Constructs an empty LinkedHashMap instance.

LinkedHashMap
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fun <K, V> LinkedHashMap(original: Map<out K, V>)
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fun <K, V> LinkedHashMap(original: Map<out K, V>)
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Constructs an instance of LinkedHashMap filled with the contents of the specified original map.

Functions

clear
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Common
open override fun clear()
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JS
open override fun clear()
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Removes all elements from this map.

containsKey
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Common
open override fun containsKey(key: K): Boolean
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JS
open override fun containsKey(key: K): Boolean
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Returns true if the map contains the specified key.

containsValue
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Common
open override fun containsValue(value: V): Boolean
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JS
open override fun containsValue(value: V): Boolean
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Returns true if the map maps one or more keys to the specified value.

equals
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JS
open operator override fun equals(other: Any?): Boolean
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Compares this map with other instance with the ordered structural equality.

get
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Common
open operator override fun get(key: K): V?
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JS
open operator override fun get(key: K): V?
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Returns the value corresponding to the given key, or null if such a key is not present in the map.

getOrDefault
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JS
open fun getOrDefault(key: K, defaultValue: V): V
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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
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JS
open override fun hashCode(): Int
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Returns the hash code value for this map.

isEmpty
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JS
open override fun isEmpty(): Boolean
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Returns true if the map is empty (contains no elements), false otherwise.

Common
open override fun isEmpty(): Boolean
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put
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Common
open override fun put(key: K, value: V): V?
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JS
open override fun put(key: K, value: V): V?
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Associates the specified value with the specified key in the map.

putAll
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Common
open override fun putAll(from: Map<out K, V>)
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remove
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Common
open override fun remove(key: K): V?
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JS
open override fun remove(key: K): V?
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Removes the specified key and its corresponding value from this map.

JS
open fun remove(key: K, value: V): Boolean
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Removes the entry for the specified key only if it is mapped to the specified value.

Since Kotlin

1.1
toString
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JS
open override fun toString(): String
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fun toString(entry: Map.Entry<K, V>): String
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Properties

entries
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Common
open override val entries: MutableSet<MutableMap.MutableEntry<K, V>>
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keys
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Common
open override val keys: MutableSet<K>
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size
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open override val size: Int
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open override val size: Int
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Returns the number of key/value pairs in the map.

values
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Common
open override val values: MutableCollection<V>
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