java.util

Class LinkedHashMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<K,V>

Type Parameters:

K - key type.

V - value type.

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

public class LinkedHashMap<K,V>
extends HashMap<K,V>
implements Map<K,V>

Hash table implementation of the Map interface with predictable iteration order. [Sun docs]

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
LinkedHashMap()
LinkedHashMap(int ignored)
LinkedHashMap(int ignored, float alsoIgnored)
LinkedHashMap(int ignored, float alsoIgnored, boolean accessOrder)
LinkedHashMap(Map<? extends K,? extends V> toBeCopied)

Method Summary

Modifier and Type	Method and Description
void	clear()
Object	clone()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
protected V	getStringValue(String key) Returns the value for the given key in the stringMap.
protected boolean	hasStringValue(String key) Returns true if the given key exists in the stringMap.
V	put(K key, V value)
protected V	putStringValue(String key, V value) Sets the specified key to the specified value in the stringMap.
V	remove(Object key)
protected boolean	removeEldestEntry(Map.Entry<K,V> eldest)
protected V	removeStringValue(String key) Removes the specified key from the stringMap and returns the value that was previously there.
int	size()

Methods inherited from class java.util.AbstractMap

equals, hashCode, isEmpty, keySet, putAll, toString, values

Methods inherited from class java.lang.Object

finalize, getClass

Methods inherited from interface java.util.Map

equals, hashCode, isEmpty, keySet, putAll, values

Constructor Detail

LinkedHashMap

public LinkedHashMap()

LinkedHashMap

public LinkedHashMap(int ignored)

LinkedHashMap

public LinkedHashMap(int ignored,
                     float alsoIgnored)

LinkedHashMap

public LinkedHashMap(int ignored,
                     float alsoIgnored,
                     boolean accessOrder)

LinkedHashMap

public LinkedHashMap(Map<? extends K,? extends V> toBeCopied)

Method Detail

clear

public void clear()

Specified by:

clear in interface Map<K,V>

clone

public Object clone()

Overrides:

clone in class HashMap<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

put

public V put(K key,
             V value)

Specified by:

put in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

size

public int size()

Specified by:

size in interface Map<K,V>

removeEldestEntry

protected boolean removeEldestEntry(Map.Entry<K,V> eldest)

getStringValue

protected V getStringValue(String key)

Returns the value for the given key in the stringMap. Returns null if the specified key does not exist.

hasStringValue

protected boolean hasStringValue(String key)

Returns true if the given key exists in the stringMap.

putStringValue

protected V putStringValue(String key,
                           V value)

Sets the specified key to the specified value in the stringMap. Returns the value previously at that key. Returns null if the specified key did not exist.

removeStringValue

protected V removeStringValue(String key)

Removes the specified key from the stringMap and returns the value that was previously there. Returns null if the specified key does not exist.