Package it.unimi.dsi.fastutil.chars

Class CharSets.Singleton

java.lang.Object

java.util.AbstractCollection<Character>

it.unimi.dsi.fastutil.chars.AbstractCharCollection

it.unimi.dsi.fastutil.chars.AbstractCharSet

it.unimi.dsi.fastutil.chars.CharSets.Singleton

All Implemented Interfaces:

CharCollection, CharIterable, CharSet, Serializable, Cloneable, Iterable<Character>, Collection<Character>, Set<Character>

Direct Known Subclasses:

CharSortedSets.Singleton

Enclosing class:

CharSets

public static class CharSets.Singleton
extends AbstractCharSet
implements Serializable, Cloneable

An immutable class representing a type-specific singleton set.

This class may be useful to implement your own in case you subclass a type-specific set.

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
boolean	addAll(CharCollection c)	Adds all elements of the given type-specific collection to this collection.
boolean	addAll(Collection<? extends Character> c)
Object	clone()
boolean	contains(char k)	Returns true if this collection contains the specified element.
void	forEach(CharConsumer action)	Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.
void	forEach(Consumer<? super Character> action)	Deprecated.
IntIterator	intIterator()	Returns a widened primitive iterator on the elements of this collection.
IntSpliterator	intSpliterator()	Returns widened primitive spliterator on the elements of this collection.
CharListIterator	iterator()	Returns a type-specific iterator on the elements of this collection.
boolean	remove(char k)	Removes an element from this set.
boolean	removeAll(CharCollection c)	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	removeIf(Predicate<? super Character> filter)	Deprecated.
boolean	retainAll(CharCollection c)	Retains in this collection only elements from the given type-specific collection.
boolean	retainAll(Collection<?> c)
int	size()
CharSpliterator	spliterator()	Returns a type-specific spliterator on the elements of this set.
Object[]	toArray()	Deprecated.
char[]	toCharArray()	Returns a primitive type array containing the items of this collection.

Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharSet

equals, hashCode, rem

Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharCollection

add, add, contains, containsAll, containsAll, remove, toArray, toCharArray, toString

Methods inherited from class java.util.AbstractCollection

clear, isEmpty, toArray

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.chars.CharCollection

add, containsAll, intParallelStream, intStream, parallelStream, removeIf, stream, toArray, toCharArray

Methods inherited from interface it.unimi.dsi.fastutil.chars.CharIterable

forEach

Methods inherited from interface it.unimi.dsi.fastutil.chars.CharSet

add, contains, remove

Methods inherited from interface java.util.Collection

toArray

Methods inherited from interface java.util.Set

clear, containsAll, isEmpty, toArray

Method Details

contains

public boolean contains(char k)

Description copied from class: AbstractCharCollection

Returns true if this collection contains the specified element.

Specified by:

contains in interface CharCollection

Overrides:

contains in class AbstractCharCollection

See Also:

• Collection.contains(Object)

remove

public boolean remove(char k)

Description copied from class: AbstractCharSet

Removes an element from this set. Delegates to the type-specific rem() method implemented by type-specific abstract Collection superclass.

Specified by:

remove in interface CharSet

Overrides:

remove in class AbstractCharSet

See Also:

• Collection.remove(Object)

iterator

public CharListIterator iterator()

Description copied from interface: CharCollection

Returns a type-specific iterator on the elements of this collection.

Specified by:

iterator in interface CharCollection

Specified by:

iterator in interface CharIterable

Specified by:

iterator in interface CharSet

Specified by:

iterator in interface Collection<Character>

Specified by:

iterator in interface Iterable<Character>

Specified by:

iterator in interface Set<Character>

Specified by:

iterator in class AbstractCharSet

Returns:

a type-specific iterator on the elements of this collection.

See Also:

• Iterable.iterator()

spliterator

public CharSpliterator spliterator()

Description copied from interface: CharSet

Returns a type-specific spliterator on the elements of this set.

Set spliterators must report at least Spliterator.DISTINCT.

See Set.spliterator() for more documentation on the requirements of the returned spliterator.

Specified by:

spliterator in interface CharCollection

Specified by:

spliterator in interface CharIterable

Specified by:

spliterator in interface CharSet

Specified by:

spliterator in interface Collection<Character>

Specified by:

spliterator in interface Iterable<Character>

Specified by:

spliterator in interface Set<Character>

Returns:

a type-specific spliterator on the elements of this collection.

size

public int size()

Specified by:

size in interface Collection<Character>

Specified by:

size in interface Set<Character>

Specified by:

size in class AbstractCollection<Character>

toCharArray

public char[] toCharArray()

Description copied from interface: CharCollection

Returns a primitive type array containing the items of this collection.

Specified by:

toCharArray in interface CharCollection

Overrides:

toCharArray in class AbstractCharCollection

Returns:

a primitive type array containing the items of this collection.

See Also:

• Collection.toArray()

forEach

@Deprecated
public void forEach(Consumer<? super Character> action)

Deprecated.

Description copied from interface: CharIterable

Specified by:

forEach in interface CharIterable

Specified by:

forEach in interface Iterable<Character>

addAll

public boolean addAll(Collection<? extends Character> c)

Description copied from class: AbstractCharCollection

Specified by:

addAll in interface Collection<Character>

Specified by:

addAll in interface Set<Character>

Overrides:

addAll in class AbstractCharCollection

removeAll

public boolean removeAll(Collection<?> c)

Description copied from class: AbstractCharCollection

Specified by:

removeAll in interface Collection<Character>

Specified by:

removeAll in interface Set<Character>

Overrides:

removeAll in class AbstractCharCollection

retainAll

public boolean retainAll(Collection<?> c)

Description copied from class: AbstractCharCollection

Specified by:

retainAll in interface Collection<Character>

Specified by:

retainAll in interface Set<Character>

Overrides:

retainAll in class AbstractCharCollection

removeIf

@Deprecated
public boolean removeIf(Predicate<? super Character> filter)

Deprecated.

Description copied from interface: CharCollection

Specified by:

removeIf in interface CharCollection

Specified by:

removeIf in interface Collection<Character>

forEach

public void forEach(CharConsumer action)

Description copied from interface: CharIterable

Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.

Specified by:

forEach in interface CharIterable

Parameters:

action - the action to be performed for each element.

See Also:

• Iterable.forEach(java.util.function.Consumer)

addAll

public boolean addAll(CharCollection c)

Description copied from interface: CharCollection

Adds all elements of the given type-specific collection to this collection.

Specified by:

addAll in interface CharCollection

Overrides:

addAll in class AbstractCharCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

• Collection.addAll(Collection)

removeAll

public boolean removeAll(CharCollection c)

Description copied from interface: CharCollection

Remove from this collection all elements in the given type-specific collection.

Specified by:

removeAll in interface CharCollection

Overrides:

removeAll in class AbstractCharCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

• Collection.removeAll(Collection)

retainAll

public boolean retainAll(CharCollection c)

Description copied from interface: CharCollection

Retains in this collection only elements from the given type-specific collection.

Specified by:

retainAll in interface CharCollection

Overrides:

retainAll in class AbstractCharCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

• Collection.retainAll(Collection)

removeIf

public boolean removeIf(CharPredicate filter)

Description copied from interface: CharCollection

Remove from this collection all elements which satisfy the given predicate.

Specified by:

removeIf in interface CharCollection

Parameters:

filter - a predicate which returns true for elements to be removed.

Returns:

true if any elements were removed.

See Also:

• Collection.removeIf(java.util.function.Predicate)

intIterator

public IntIterator 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, and double.

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. See Character for more discussion on code points, char values, and surrogate pairs.

Specified by:

intIterator in interface CharCollection

Specified by:

intIterator in interface CharIterable

Returns:

a widened primitive iterator on the elements of this collection.

intSpliterator

public IntSpliterator 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, and double.

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. See Character for more discussion on code points, char values, and surrogate pairs.

Specified by:

intSpliterator in interface CharCollection

Specified by:

intSpliterator in interface CharIterable

Returns:

a widened primitive spliterator on the elements of this collection.

toArray

@Deprecated
public Object[] toArray()

Deprecated.

Specified by:

toArray in interface Collection<Character>

Specified by:

toArray in interface Set<Character>

Overrides:

toArray in class AbstractCollection<Character>

clone

public Object clone()