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java.lang.Objectjava.util.AbstractMap
org.cojen.util.IntHashMap
public class IntHashMap
A Map that accepts int or Integer keys only. This class is not thread-safe.
Nested Class Summary |
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Nested classes/interfaces inherited from class java.util.AbstractMap |
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AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V> |
Constructor Summary | |
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IntHashMap()
Constructs a new, empty map with a default capacity and load factor, which is 0.75. |
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IntHashMap(int initialCapacity)
Constructs a new, empty map with the specified initial capacity and default load factor, which is 0.75. |
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IntHashMap(int initialCapacity,
float loadFactor)
Constructs a new, empty map with the specified initial capacity and the specified load factor. |
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IntHashMap(Map t)
Constructs a new map with the same mappings as the given map. |
Method Summary | |
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void |
clear()
Removes all mappings from this map. |
Object |
clone()
Returns a shallow copy of this IntHashMap instance: the keys and values themselves are not cloned. |
boolean |
containsKey(int key)
Returns true if this map contains a mapping for the specified key. |
boolean |
containsKey(Integer key)
Returns true if this map contains a mapping for the specified key. |
boolean |
containsValue(Object value)
Returns true if this map maps one or more keys to the specified value. |
Set |
entrySet()
Returns a collection view of the mappings contained in this map. |
Object |
get(int key)
Returns the value to which this map maps the specified key. |
Object |
get(Integer key)
Returns the value to which this map maps the specified key. |
boolean |
isEmpty()
Returns true if this map contains no key-value mappings. |
Set |
keySet()
Returns a set view of the keys contained in this map. |
Object |
put(Integer key,
Object value)
Associates the specified value with the specified key in this map. |
Object |
put(int key,
Object value)
Associates the specified value with the specified key in this map. |
Object |
remove(int key)
Removes the mapping for this key from this map if present. |
Object |
remove(Integer key)
Removes the mapping for this key from this map if present. |
int |
size()
Returns the number of key-value mappings in this map. |
Collection |
values()
Returns a collection view of the values contained in this map. |
Methods inherited from class java.util.AbstractMap |
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containsKey, equals, get, hashCode, put, putAll, remove, toString |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Map |
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containsKey, equals, get, hashCode, put, putAll, remove |
Constructor Detail |
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public IntHashMap(int initialCapacity, float loadFactor)
initialCapacity
- the initial capacity of the IntHashMap.loadFactor
- the load factor of the IntHashMap
IllegalArgumentException
- if the initial capacity is less
than zero, or if the load factor is nonpositive.public IntHashMap(int initialCapacity)
initialCapacity
- the initial capacity of the IntHashMap.
IllegalArgumentException
- if the initial capacity is less
than zero.public IntHashMap()
public IntHashMap(Map t)
Method Detail |
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public int size()
size
in interface Map
size
in class AbstractMap
public boolean isEmpty()
isEmpty
in interface Map
isEmpty
in class AbstractMap
public boolean containsValue(Object value)
containsValue
in interface Map
containsValue
in class AbstractMap
value
- value whose presence in this map is to be tested.
public boolean containsKey(Integer key)
key
- key whose presence in this Map is to be tested.
public boolean containsKey(int key)
key
- key whose presence in this Map is to be tested.
public Object get(Integer key)
key
- key whose associated value is to be returned.
public Object get(int key)
key
- key whose associated value is to be returned.
public Object put(Integer key, Object value)
key
- key with which the specified value is to be associated.value
- value to be associated with the specified key.
public Object put(int key, Object value)
key
- key with which the specified value is to be associated.value
- value to be associated with the specified key.
public Object remove(Integer key)
key
- key whose mapping is to be removed from the map.
public Object remove(int key)
key
- key whose mapping is to be removed from the map.
public void clear()
clear
in interface Map
clear
in class AbstractMap
public Object clone()
clone
in class AbstractMap
public Set keySet()
keySet
in interface Map
keySet
in class AbstractMap
public Collection values()
values
in interface Map
values
in class AbstractMap
public Set entrySet()
entrySet
in interface Map
entrySet
in class AbstractMap
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