Class CharCollections.EmptyCollection
- All Implemented Interfaces:
CharCollection
,CharIterable
,Iterable<Character>
,Collection<Character>
- Direct Known Subclasses:
CharBigLists.EmptyBigList
,CharLists.EmptyList
,CharSets.EmptySet
- Enclosing class:
CharCollections
This class may be useful to implement your own in case you subclass a type-specific collection.
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Method Summary
Modifier and TypeMethodDescriptionboolean
Adds all elements of the given type-specific collection to this collection.boolean
addAll
(Collection<? extends Character> c) void
clear()
boolean
contains
(char k) Returnstrue
if this collection contains the specified element.boolean
Checks whether this collection contains all elements from the given type-specific collection.boolean
containsAll
(Collection<?> c) boolean
void
forEach
(CharConsumer action) Performs the given action for each element of this type-specificIterable
until all elements have been processed or the action throws an exception.void
Deprecated.int
hashCode()
Returns a widened primitive iterator on the elements of this collection.Returns widened primitive spliterator on the elements of this collection.iterator()
Returns a type-specific iterator on the elements of this collection.boolean
Remove from this collection all elements in the given type-specific collection.boolean
removeAll
(Collection<?> c) boolean
removeIf
(CharPredicate filter) Remove from this collection all elements which satisfy the given predicate.boolean
Deprecated.boolean
Retains in this collection only elements from the given type-specific collection.boolean
retainAll
(Collection<?> c) int
size()
Returns a type-specific spliterator on the elements of this collection.Object[]
toArray()
<T> T[]
toArray
(T[] array) char[]
Returns a primitive type array containing the items of this collection.char[]
toCharArray
(char[] a) Deprecated.Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharCollection
add, add, contains, rem, remove, toArray, toString
Methods inherited from class java.util.AbstractCollection
isEmpty
Methods inherited from interface it.unimi.dsi.fastutil.chars.CharCollection
intParallelStream, intStream, parallelStream, removeIf, stream
Methods inherited from interface it.unimi.dsi.fastutil.chars.CharIterable
forEach
Methods inherited from interface java.util.Collection
isEmpty, toArray
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Method Details
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contains
public boolean contains(char k) Description copied from class:AbstractCharCollection
Returnstrue
if this collection contains the specified element.- Specified by:
contains
in interfaceCharCollection
- Overrides:
contains
in classAbstractCharCollection
- See Also:
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toArray
- Specified by:
toArray
in interfaceCollection<Character>
- Overrides:
toArray
in classAbstractCollection<Character>
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toArray
public <T> T[] toArray(T[] array) - Specified by:
toArray
in interfaceCollection<Character>
- Overrides:
toArray
in classAbstractCollection<Character>
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iterator
Description copied from interface:CharCollection
Returns a type-specific iterator on the elements of this collection.- Specified by:
iterator
in interfaceCharCollection
- Specified by:
iterator
in interfaceCharIterable
- Specified by:
iterator
in interfaceCollection<Character>
- Specified by:
iterator
in interfaceIterable<Character>
- Specified by:
iterator
in classAbstractCharCollection
- Returns:
- a type-specific iterator on the elements of this collection.
- See Also:
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spliterator
Description copied from interface:CharCollection
Returns a type-specific spliterator on the elements of this collection.See
Collection.spliterator()
for more documentation on the requirements of the returned spliterator.- Returns:
- a type-specific spliterator on the elements of this collection.
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size
public int size()- Specified by:
size
in interfaceCollection<Character>
- Specified by:
size
in classAbstractCollection<Character>
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clear
public void clear()- Specified by:
clear
in interfaceCollection<Character>
- Overrides:
clear
in classAbstractCollection<Character>
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hashCode
public int hashCode()- Specified by:
hashCode
in interfaceCollection<Character>
- Overrides:
hashCode
in classObject
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equals
- Specified by:
equals
in interfaceCollection<Character>
- Overrides:
equals
in classObject
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forEach
Deprecated.Description copied from interface:CharIterable
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containsAll
Description copied from class:AbstractCharCollection
- Specified by:
containsAll
in interfaceCollection<Character>
- Overrides:
containsAll
in classAbstractCharCollection
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addAll
Description copied from class:AbstractCharCollection
- Specified by:
addAll
in interfaceCollection<Character>
- Overrides:
addAll
in classAbstractCharCollection
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removeAll
Description copied from class:AbstractCharCollection
- Specified by:
removeAll
in interfaceCollection<Character>
- Overrides:
removeAll
in classAbstractCharCollection
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retainAll
Description copied from class:AbstractCharCollection
- Specified by:
retainAll
in interfaceCollection<Character>
- Overrides:
retainAll
in classAbstractCharCollection
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removeIf
Deprecated.Description copied from interface:CharCollection
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toCharArray
public char[] toCharArray()Description copied from interface:CharCollection
Returns a primitive type array containing the items of this collection.- Specified by:
toCharArray
in interfaceCharCollection
- Overrides:
toCharArray
in classAbstractCharCollection
- Returns:
- a primitive type array containing the items of this collection.
- See Also:
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toCharArray
Deprecated.Description copied from class:AbstractCharCollection
Returns a primitive type array containing the items of this collection.Note that, contrarily to
Collection.toArray(Object[])
, this methods just writes all elements of this collection: no special value will be added after the last one.- Specified by:
toCharArray
in interfaceCharCollection
- Overrides:
toCharArray
in classAbstractCharCollection
- Parameters:
a
- if this array is big enough, it will be used to store this collection.- Returns:
- a primitive type array containing the items of this collection.
- See Also:
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forEach
Description copied from interface:CharIterable
Performs the given action for each element of this type-specificIterable
until all elements have been processed or the action throws an exception.- Parameters:
action
- the action to be performed for each element.- See Also:
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containsAll
Description copied from interface:CharCollection
Checks whether this collection contains all elements from the given type-specific collection.- Specified by:
containsAll
in interfaceCharCollection
- Overrides:
containsAll
in classAbstractCharCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection contains all elements of the argument.- See Also:
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addAll
Description copied from interface:CharCollection
Adds all elements of the given type-specific collection to this collection.- Specified by:
addAll
in interfaceCharCollection
- Overrides:
addAll
in classAbstractCharCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
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removeAll
Description copied from interface:CharCollection
Remove from this collection all elements in the given type-specific collection.- Specified by:
removeAll
in interfaceCharCollection
- Overrides:
removeAll
in classAbstractCharCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
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retainAll
Description copied from interface:CharCollection
Retains in this collection only elements from the given type-specific collection.- Specified by:
retainAll
in interfaceCharCollection
- Overrides:
retainAll
in classAbstractCharCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
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removeIf
Description copied from interface:CharCollection
Remove from this collection all elements which satisfy the given predicate.- Parameters:
filter
- a predicate which returnstrue
for elements to be removed.- Returns:
true
if any elements were removed.- See Also:
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intIterator
Description copied from interface:CharCollection
Returns a widened primitive iterator on the elements of this collection.This method is provided for the purpose of APIs that expect only the JDK's primitive iterators, of which there are only
int
,long
, anddouble
.WARNING: This is not the same as converting the source to a sequence of code points. This returned instance literally performs
(int)(charValue)
casts. Surrogate pairs will be left as separate elements instead of combined into a single element with the code point it represents. SeeCharacter
for more discussion on code points, char values, and surrogate pairs.- Returns:
- a widened primitive iterator on the elements of this collection.
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intSpliterator
Description copied from interface:CharCollection
Returns widened primitive spliterator on the elements of this collection.This method is provided for the purpose of APIs that expect only the JDK's primitive spliterators, of which there are only
int
,long
, anddouble
.WARNING: This is not the same as converting the source to a sequence of code points. This returned instance literally performs
(int)(charValue)
casts. Surrogate pairs will be left as separate elements instead of combined into a single element with the code point it represents. SeeCharacter
for more discussion on code points, char values, and surrogate pairs.- Returns:
- a widened primitive spliterator on the elements of this collection.
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