Package it.unimi.dsi.fastutil.chars

Class CharLists.Singleton

java.lang.Object

java.util.AbstractCollection<Character>

it.unimi.dsi.fastutil.chars.AbstractCharCollection

it.unimi.dsi.fastutil.chars.AbstractCharList

it.unimi.dsi.fastutil.chars.CharLists.Singleton

All Implemented Interfaces:

CharCollection, CharIterable, CharList, CharStack, Stack<Character>, Serializable, Cloneable, Comparable<List<? extends Character>>, Iterable<Character>, Collection<Character>, List<Character>, RandomAccess, SequencedCollection<Character>

Enclosing class:

CharLists

public static class CharLists.Singleton
extends AbstractCharList
implements RandomAccess, Serializable, Cloneable

An immutable class representing a type-specific singleton list.

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

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.chars.AbstractCharList

AbstractCharList.CharRandomAccessSubList, AbstractCharList.CharSubList

Method Summary

Modifier and Type	Method	Description
boolean	addAll(int i, CharCollection c)	Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).
boolean	addAll(int i, CharList c)	Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).
boolean	addAll(int i, Collection<? extends Character> c)	Adds all of the elements in the specified collection to this list (optional operation).
boolean	addAll(CharCollection c)	Adds all elements of the given type-specific collection to this collection.
boolean	addAll(CharList c)	Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).
boolean	addAll(Collection<? extends Character> c)
void	addElements(int index, char[] a)	Add (hopefully quickly) elements to this type-specific list.
void	addElements(int index, char[] a, int offset, int length)	Add (hopefully quickly) elements to this type-specific list.
void	clear()
Object	clone()
boolean	contains(char k)	Returns true if this list 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.
char	getChar(int i)	Returns the element at the specified position in this list.
void	getElements(int from, char[] a, int offset, int length)	Copies (hopefully quickly) elements of this type-specific list into the given array.
int	indexOf(char k)	Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
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.
CharListIterator	listIterator()	Returns a type-specific list iterator on the list.
CharListIterator	listIterator(int i)	Returns a type-specific list iterator on the list starting at a given index.
boolean	rem(char k)	Removes a single instance of the specified element from this collection, if it is present (optional operation).
boolean	removeAll(CharCollection c)	Remove from this collection all elements in the given type-specific collection.
boolean	removeAll(Collection<?> c)
char	removeChar(int i)	Removes the element at the specified position in this list (optional operation).
void	removeElements(int from, int to)	Removes (hopefully quickly) elements of this type-specific list.
boolean	removeIf(CharPredicate filter)	Remove from this collection all elements which satisfy the given predicate.
boolean	removeIf(Predicate<? super Character> filter)	Deprecated.
void	replaceAll(CharUnaryOperator operator)	Replaces each element of this list with the result of applying the operator to that element.
void	replaceAll(UnaryOperator<Character> operator)	Deprecated.
boolean	retainAll(CharCollection c)	Retains in this collection only elements from the given type-specific collection.
boolean	retainAll(Collection<?> c)
void	setElements(char[] a)	Set (hopefully quickly) elements to match the array given.
void	setElements(int index, char[] a)	Set (hopefully quickly) elements to match the array given.
void	setElements(int index, char[] a, int offset, int length)	Set (hopefully quickly) elements to match the array given.
int	size()
void	size(int size)	Sets the size of this list.
void	sort(CharComparator comparator)	Sort a list using a type-specific comparator.
void	sort(Comparator<? super Character> comparator)	Deprecated.
CharSpliterator	spliterator()	Returns a type-specific spliterator on the elements of this list.
CharList	subList(int from, int to)	Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.
Object[]	toArray()	Deprecated.
char[]	toCharArray()	Returns a primitive type array containing the items of this collection.
void	unstableSort(CharComparator comparator)	Sorts this list using a sort not assured to be stable.
void	unstableSort(Comparator<? super Character> comparator)	Deprecated.

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

add, add, compareTo, equals, hashCode, lastIndexOf, peekChar, popChar, push, set, toArray, topChar, toString

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

add, contains, containsAll, containsAll, remove, toCharArray

Methods inherited from class java.util.AbstractCollection

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

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

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

forEach

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

add, add, contains, get, indexOf, lastIndexOf, remove, remove, replaceAll, set

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

peek, pop, push, top

Methods inherited from interface java.util.Collection

toArray

Methods inherited from interface java.util.List

addFirst, addLast, containsAll, getFirst, getLast, isEmpty, removeFirst, removeLast, reversed, toArray

Methods inherited from interface it.unimi.dsi.fastutil.Stack

isEmpty

Method Details

getChar

public char getChar(int i)

Description copied from interface: CharList

Returns the element at the specified position in this list.

Specified by:

getChar in interface CharList

See Also:

• List.get(int)

rem

public boolean rem(char k)

Description copied from class: AbstractCharList

Removes a single instance of the specified element from this collection, if it is present (optional operation).

Specified by:

rem in interface CharCollection

Overrides:

rem in class AbstractCharList

See Also:

• List.remove(Object)

removeChar

public char removeChar(int i)

Description copied from class: AbstractCharList

Removes the element at the specified position in this list (optional operation).

Specified by:

removeChar in interface CharList

Overrides:

removeChar in class AbstractCharList

See Also:

• List.remove(int)

contains

public boolean contains(char k)

Description copied from class: AbstractCharList

Returns true if this list contains the specified element.

Specified by:

contains in interface CharCollection

Overrides:

contains in class AbstractCharList

See Also:

• List.contains(Object)

indexOf

public int indexOf(char k)

Description copied from interface: CharList

Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.

Specified by:

indexOf in interface CharList

Overrides:

indexOf in class AbstractCharList

See Also:

• List.indexOf(Object)

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 AbstractCharList

Returns:

a primitive type array containing the items of this collection.

See Also:

• Collection.toArray()

listIterator

public CharListIterator listIterator()

Description copied from class: AbstractCharList

Returns a type-specific list iterator on the list.

Specified by:

listIterator in interface CharList

Specified by:

listIterator in interface List<Character>

Overrides:

listIterator in class AbstractCharList

See Also:

• List.listIterator()

iterator

public CharListIterator iterator()

Description copied from class: AbstractCharList

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 CharList

Specified by:

iterator in interface Collection<Character>

Specified by:

iterator in interface Iterable<Character>

Specified by:

iterator in interface List<Character>

Overrides:

iterator in class AbstractCharList

Returns:

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

See Also:

• Iterable.iterator()

spliterator

public CharSpliterator spliterator()

Description copied from interface: CharList

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

List spliterators must report at least Spliterator.SIZED and Spliterator.ORDERED.

See List.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 CharList

Specified by:

spliterator in interface Collection<Character>

Specified by:

spliterator in interface Iterable<Character>

Specified by:

spliterator in interface List<Character>

Returns:

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

listIterator

public CharListIterator listIterator(int i)

Description copied from class: AbstractCharList

Returns a type-specific list iterator on the list starting at a given index.

Specified by:

listIterator in interface CharList

Specified by:

listIterator in interface List<Character>

Overrides:

listIterator in class AbstractCharList

See Also:

• List.listIterator(int)

subList

public CharList subList(int from,
 int to)

Description copied from interface: CharList

Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.

Specified by:

subList in interface CharList

Specified by:

subList in interface List<Character>

Overrides:

subList in class AbstractCharList

See Also:

• List.subList(int,int)

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(int i,
 Collection<? extends Character> c)

Description copied from class: AbstractCharList

Adds all of the elements in the specified collection to this list (optional operation).

Specified by:

addAll in interface List<Character>

Overrides:

addAll in class AbstractCharList

addAll

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

Description copied from class: AbstractCharList

Specified by:

addAll in interface Collection<Character>

Specified by:

addAll in interface List<Character>

Overrides:

addAll in class AbstractCharList

removeAll

public boolean removeAll(Collection<?> c)

Description copied from class: AbstractCharCollection

Specified by:

removeAll in interface Collection<Character>

Specified by:

removeAll in interface List<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 List<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>

replaceAll

@Deprecated
public void replaceAll(UnaryOperator<Character> operator)

Deprecated.

Description copied from interface: CharList

Specified by:

replaceAll in interface CharList

Specified by:

replaceAll in interface List<Character>

replaceAll

public void replaceAll(CharUnaryOperator operator)

Description copied from interface: CharList

Replaces each element of this list with the result of applying the operator to that element.

Specified by:

replaceAll in interface CharList

Parameters:

operator - the operator to apply to each element.

See Also:

• List.replaceAll(java.util.function.UnaryOperator<E>)

forEach

public void forEach(CharConsumer action)

Description copied from class: AbstractCharList

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

Overrides:

forEach in class AbstractCharList

Parameters:

action - the action to be performed for each element.

See Also:

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

addAll

public boolean addAll(CharList c)

Description copied from interface: CharList

Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).

Specified by:

addAll in interface CharList

See Also:

• List.addAll(Collection)

addAll

public boolean addAll(int i,
 CharList c)

Description copied from interface: CharList

Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).

Specified by:

addAll in interface CharList

See Also:

• List.addAll(int,Collection)

addAll

public boolean addAll(int i,
 CharCollection c)

Description copied from interface: CharList

Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).

Specified by:

addAll in interface CharList

Overrides:

addAll in class AbstractCharList

See Also:

• List.addAll(int,java.util.Collection)

addAll

public boolean addAll(CharCollection c)

Description copied from class: AbstractCharList

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

Specified by:

addAll in interface CharCollection

Overrides:

addAll in class AbstractCharList

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 List<Character>

Overrides:

toArray in class AbstractCollection<Character>

sort

public void sort(CharComparator comparator)

Description copied from interface: CharList

Sort a list using a type-specific comparator.

Pass null to sort using natural ordering.

Specified by:

sort in interface CharList

See Also:

• List.sort(java.util.Comparator)

unstableSort

public void unstableSort(CharComparator comparator)

Description copied from interface: CharList

Sorts this list using a sort not assured to be stable.

Pass null to sort using natural ordering.

This differs from List.sort(java.util.Comparator) in that the results are not assured to be stable, but may be a bit faster.

Unless a subclass specifies otherwise, the results of the method if the list is concurrently modified during the sort are unspecified.

Specified by:

unstableSort in interface CharList

sort

@Deprecated
public void sort(Comparator<? super Character> comparator)

Deprecated.

Description copied from interface: CharList

Specified by:

sort in interface CharList

Specified by:

sort in interface List<Character>

unstableSort

@Deprecated
public void unstableSort(Comparator<? super Character> comparator)

Deprecated.

Description copied from interface: CharList

Sorts this list using a sort not assured to be stable.

Specified by:

unstableSort in interface CharList

getElements

public void getElements(int from,
 char[] a,
 int offset,
 int length)

Description copied from class: AbstractCharList

Copies (hopefully quickly) elements of this type-specific list into the given array.

This is a trivial iterator-based implementation. It is expected that implementations will override this method with a more optimized version.

Specified by:

getElements in interface CharList

Overrides:

getElements in class AbstractCharList

Parameters:

from - the start index (inclusive).

a - the destination array.

offset - the offset into the destination array where to store the first element copied.

length - the number of elements to be copied.

removeElements

public void removeElements(int from,
 int to)

Description copied from class: AbstractCharList

Removes (hopefully quickly) elements of this type-specific list.

This is a trivial iterator-based based implementation. It is expected that implementations will override this method with a more optimized version.

Specified by:

removeElements in interface CharList

Overrides:

removeElements in class AbstractCharList

Parameters:

from - the start index (inclusive).

to - the end index (exclusive).

addElements

public void addElements(int index,
 char[] a)

Description copied from class: AbstractCharList

Add (hopefully quickly) elements to this type-specific list.

Specified by:

addElements in interface CharList

Overrides:

addElements in class AbstractCharList

Parameters:

index - the index at which to add elements.

a - the array containing the elements.

addElements

public void addElements(int index,
 char[] a,
 int offset,
 int length)

Description copied from class: AbstractCharList

Add (hopefully quickly) elements to this type-specific list.

This is a trivial iterator-based implementation. It is expected that implementations will override this method with a more optimized version.

Specified by:

addElements in interface CharList

Overrides:

addElements in class AbstractCharList

Parameters:

index - the index at which to add elements.

a - the array containing the elements.

offset - the offset of the first element to add.

length - the number of elements to add.

setElements

public void setElements(char[] a)

Description copied from interface: CharList

Set (hopefully quickly) elements to match the array given.

Specified by:

setElements in interface CharList

Parameters:

a - the array containing the elements.

setElements

public void setElements(int index,
 char[] a)

Description copied from interface: CharList

Set (hopefully quickly) elements to match the array given.

Specified by:

setElements in interface CharList

Parameters:

index - the index at which to start setting elements.

a - the array containing the elements.

setElements

public void setElements(int index,
 char[] a,
 int offset,
 int length)

Description copied from interface: CharList

Set (hopefully quickly) elements to match the array given. Sets each in this list to the corresponding elements in the array, as if by

 ListIterator iter = listIterator(index);
 int i = 0;
 while (i < length) {
        iter.next();
        iter.set(a[offset + i++]);
 }
 

However, the exact implementation may be more efficient, taking into account whether random access is faster or not, or at the discretion of subclasses, abuse internals.

Specified by:

setElements in interface CharList

Overrides:

setElements in class AbstractCharList

Parameters:

index - the index at which to start setting elements.

a - the array containing the elements

offset - the offset of the first element to add.

length - the number of elements to add.

size

public int size()

Specified by:

size in interface Collection<Character>

Specified by:

size in interface List<Character>

Specified by:

size in class AbstractCollection<Character>

size

public void size(int size)

Description copied from interface: CharList

Sets the size of this list.

If the specified size is smaller than the current size, the last elements are discarded. Otherwise, they are filled with 0/null/false.

Specified by:

size in interface CharList

Overrides:

size in class AbstractCharList

Parameters:

size - the new size.

clear

public void clear()

Description copied from class: AbstractCharList

Specified by:

clear in interface Collection<Character>

Specified by:

clear in interface List<Character>

Overrides:

clear in class AbstractCharList

clone

public Object clone()