public class BooleanMap<V> extends AbstractMap<Boolean,V> implements Serializable, Cloneable
AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>
Constructor and Description |
---|
BooleanMap() |
BooleanMap(Map<Boolean,V> m) |
BooleanMap(V trueValue,
V falseValue) |
Modifier and Type | Method and Description |
---|---|
protected int |
checkIndex(boolean key) |
protected boolean |
checkKey(int index) |
void |
clear()
Removes all of the mappings from this map (optional operation).
|
BooleanMap<V> |
clone() |
boolean |
containsKey(Object 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<Map.Entry<Boolean,V>> |
entrySet()
Returns a
Set view of the mappings contained in this map. |
V |
get(Object key)
Returns the value to which the specified key is mapped,
or
null if this map contains no mapping for the key. |
protected V |
getValue(boolean key)
获取一个值
|
boolean |
isEmpty()
Returns true if this map contains no key-value mappings.
|
Set<Boolean> |
keySet()
Returns a
Set view of the keys contained in this map. |
V |
put(Boolean key,
V value)
Associates the specified value with the specified key in this map
(optional operation).
|
V |
putFalse(V value) |
V |
putTrue(V value) |
protected V |
putValue(boolean key,
V value)
放置一个值
|
V |
remove(Object key)
Removes the mapping for a key from this map if it is present
(optional operation).
|
V |
removeFalse() |
V |
removeTrue() |
protected V |
removeValue(boolean key)
移除一个值
|
int |
size()
Returns the number of key-value mappings in this map.
|
String |
toString() |
Collection<V> |
values()
Returns a
Collection view of the values contained in this map. |
equals, hashCode, putAll
finalize, getClass, notify, notifyAll, wait, wait, wait
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll
public BooleanMap<V> clone()
clone
in class AbstractMap<Boolean,V>
protected int checkIndex(boolean key)
protected boolean checkKey(int index)
protected V putValue(boolean key, V value)
key
- Boolean 类型的keyvalue
- valueprotected V removeValue(boolean key)
key
- boolean keyprotected V getValue(boolean key)
public int size()
public boolean isEmpty()
public boolean containsKey(Object key)
containsKey
in interface Map<Boolean,V>
containsKey
in class AbstractMap<Boolean,V>
key
- key whose presence in this map is to be testedClassCastException
- if the key is of an inappropriate type for
this map
(optional)NullPointerException
- if the specified key is null and this map
does not permit null keys
(optional)public boolean containsValue(Object value)
containsValue
in interface Map<Boolean,V>
containsValue
in class AbstractMap<Boolean,V>
value
- value whose presence in this map is to be testedClassCastException
- if the value is of an inappropriate type for
this map
(optional)NullPointerException
- if the specified value is null and this
map does not permit null values
(optional)public V get(Object key)
null
if this map contains no mapping for the key.
More formally, if this map contains a mapping from a key
k
to a value v
such that (key==null ? k==null :
key.equals(k))
, then this method returns v
; otherwise
it returns null
. (There can be at most one such mapping.)
If this map permits null values, then a return value of
null
does not necessarily indicate that the map
contains no mapping for the key; it's also possible that the map
explicitly maps the key to null
. The containsKey
operation may be used to distinguish these two cases.
get
in interface Map<Boolean,V>
get
in class AbstractMap<Boolean,V>
key
- the key whose associated value is to be returnednull
if this map contains no mapping for the keyClassCastException
- if the key is of an inappropriate type for
this map
(optional)NullPointerException
- if the specified key is null and this map
does not permit null keys
(optional)public V put(Boolean key, V value)
m.containsKey(k)
would return
true.)put
in interface Map<Boolean,V>
put
in class AbstractMap<Boolean,V>
key
- key with which the specified value is to be associatedvalue
- value to be associated with the specified keyUnsupportedOperationException
- if the put operation
is not supported by this mapClassCastException
- if the class of the specified key or value
prevents it from being stored in this mapNullPointerException
- if the specified key or value is null
and this map does not permit null keys or valuesIllegalArgumentException
- if some property of the specified key
or value prevents it from being stored in this mappublic V remove(Object key)
(key==null ? k==null : key.equals(k))
, that mapping
is removed. (The map can contain at most one such mapping.)
Returns the value to which this map previously associated the key, or null if the map contained no mapping for the key.
If this map permits null values, then a return value of null does not necessarily indicate that the map contained no mapping for the key; it's also possible that the map explicitly mapped the key to null.
The map will not contain a mapping for the specified key once the call returns.
remove
in interface Map<Boolean,V>
remove
in class AbstractMap<Boolean,V>
key
- key whose mapping is to be removed from the mapUnsupportedOperationException
- if the remove operation
is not supported by this mapClassCastException
- if the key is of an inappropriate type for
this map
(optional)NullPointerException
- if the specified key is null and this
map does not permit null keys
(optional)public V removeTrue()
public V removeFalse()
public void clear()
clear
in interface Map<Boolean,V>
clear
in class AbstractMap<Boolean,V>
UnsupportedOperationException
- if the clear operation
is not supported by this mappublic Set<Boolean> keySet()
Set
view of the keys contained in this map.
The set is backed by the map, so changes to the map are
reflected in the set, and vice-versa. If the map is modified
while an iteration over the set is in progress (except through
the iterator's own remove operation), the results of
the iteration are undefined. The set supports element removal,
which removes the corresponding mapping from the map, via the
Iterator.remove, Set.remove,
removeAll, retainAll, and clear
operations. It does not support the add or addAll
operations.public String toString()
toString
in class AbstractMap<Boolean,V>
public Collection<V> values()
Collection
view of the values contained in this map.
The collection is backed by the map, so changes to the map are
reflected in the collection, and vice-versa. If the map is
modified while an iteration over the collection is in progress
(except through the iterator's own remove operation),
the results of the iteration are undefined. The collection
supports element removal, which removes the corresponding
mapping from the map, via the Iterator.remove,
Collection.remove, removeAll,
retainAll and clear operations. It does not
support the add or addAll operations.public Set<Map.Entry<Boolean,V>> entrySet()
Set
view of the mappings contained in this map.
The set is backed by the map, so changes to the map are
reflected in the set, and vice-versa. If the map is modified
while an iteration over the set is in progress (except through
the iterator's own remove operation, or through the
setValue operation on a map entry returned by the
iterator) the results of the iteration are undefined. The set
supports element removal, which removes the corresponding
mapping from the map, via the Iterator.remove,
Set.remove, removeAll, retainAll and
clear operations. It does not support the
add or addAll operations.Copyright © 2020. All rights reserved.