Package it.unimi.dsi.fastutil.floats

Class FloatLists.Singleton

java.lang.Object

java.util.AbstractCollection<Float>

it.unimi.dsi.fastutil.floats.AbstractFloatCollection

it.unimi.dsi.fastutil.floats.AbstractFloatList

it.unimi.dsi.fastutil.floats.FloatLists.Singleton

All Implemented Interfaces:

FloatCollection, FloatIterable, FloatList, FloatStack, Stack<Float>, Serializable, Cloneable, Comparable<List<? extends Float>>, Iterable<Float>, Collection<Float>, List<Float>, RandomAccess, SequencedCollection<Float>

Enclosing class:

FloatLists

public static class FloatLists.Singleton
extends AbstractFloatList
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.floats.AbstractFloatList

AbstractFloatList.FloatRandomAccessSubList, AbstractFloatList.FloatSubList

Method Summary

Modifier and Type	Method	Description
boolean	addAll(int i, FloatCollection 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, FloatList 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 Float> c)	Adds all of the elements in the specified collection to this list (optional operation).
boolean	addAll(FloatCollection c)	Adds all elements of the given type-specific collection to this collection.
boolean	addAll(FloatList 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 Float> c)
void	addElements(int index, float[] a)	Add (hopefully quickly) elements to this type-specific list.
void	addElements(int index, float[] a, int offset, int length)	Add (hopefully quickly) elements to this type-specific list.
void	clear()
Object	clone()
boolean	contains(float k)	Returns true if this list contains the specified element.
DoubleIterator	doubleIterator()	Returns a widened primitive iterator on the elements of this collection.
DoubleSpliterator	doubleSpliterator()	Returns widened primitive spliterator on the elements of this collection.
void	forEach(FloatConsumer 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 Float> action)	Deprecated.
void	getElements(int from, float[] a, int offset, int length)	Copies (hopefully quickly) elements of this type-specific list into the given array.
float	getFloat(int i)	Returns the element at the specified position in this list.
int	indexOf(float 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.
FloatListIterator	iterator()	Returns a type-specific iterator on the elements of this collection.
FloatListIterator	listIterator()	Returns a type-specific list iterator on the list.
FloatListIterator	listIterator(int i)	Returns a type-specific list iterator on the list starting at a given index.
boolean	rem(float k)	Removes a single instance of the specified element from this collection, if it is present (optional operation).
boolean	removeAll(FloatCollection c)	Remove from this collection all elements in the given type-specific collection.
boolean	removeAll(Collection<?> c)
void	removeElements(int from, int to)	Removes (hopefully quickly) elements of this type-specific list.
float	removeFloat(int i)	Removes the element at the specified position in this list (optional operation).
boolean	removeIf(FloatPredicate filter)	Remove from this collection all elements which satisfy the given predicate.
boolean	removeIf(Predicate<? super Float> filter)	Deprecated.
void	replaceAll(FloatUnaryOperator operator)	Replaces each element of this list with the result of applying the operator to that element.
void	replaceAll(UnaryOperator<Float> operator)	Deprecated.
boolean	retainAll(FloatCollection c)	Retains in this collection only elements from the given type-specific collection.
boolean	retainAll(Collection<?> c)
void	setElements(float[] a)	Set (hopefully quickly) elements to match the array given.
void	setElements(int index, float[] a)	Set (hopefully quickly) elements to match the array given.
void	setElements(int index, float[] 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(FloatComparator comparator)	Sort a list using a type-specific comparator.
void	sort(Comparator<? super Float> comparator)	Deprecated.
FloatSpliterator	spliterator()	Returns a type-specific spliterator on the elements of this list.
FloatList	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.
float[]	toFloatArray()	Returns a primitive type array containing the items of this collection.
void	unstableSort(FloatComparator comparator)	Sorts this list using a sort not assured to be stable.
void	unstableSort(Comparator<? super Float> comparator)	Deprecated.

Methods inherited from class it.unimi.dsi.fastutil.floats.AbstractFloatList

add, add, compareTo, equals, hashCode, lastIndexOf, peekFloat, popFloat, push, set, toArray, topFloat, toString

Methods inherited from class it.unimi.dsi.fastutil.floats.AbstractFloatCollection

add, contains, containsAll, containsAll, remove, toFloatArray

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 java.util.Collection

toArray

Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatCollection

containsAll, doubleParallelStream, doubleStream, parallelStream, removeIf, stream, toFloatArray

Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatIterable

forEach

Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatList

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

Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatStack

peek, pop, push, top

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

getFloat

public float getFloat(int i)

Description copied from interface: FloatList

Returns the element at the specified position in this list.

Specified by:

getFloat in interface FloatList

See Also:

• List.get(int)

rem

public boolean rem(float k)

Description copied from class: AbstractFloatList

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

Specified by:

rem in interface FloatCollection

Overrides:

rem in class AbstractFloatList

See Also:

• List.remove(Object)

removeFloat

public float removeFloat(int i)

Description copied from class: AbstractFloatList

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

Specified by:

removeFloat in interface FloatList

Overrides:

removeFloat in class AbstractFloatList

See Also:

• List.remove(int)

contains

public boolean contains(float k)

Description copied from class: AbstractFloatList

Returns true if this list contains the specified element.

Specified by:

contains in interface FloatCollection

Overrides:

contains in class AbstractFloatList

See Also:

• List.contains(Object)

indexOf

public int indexOf(float k)

Description copied from interface: FloatList

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 FloatList

Overrides:

indexOf in class AbstractFloatList

See Also:

• List.indexOf(Object)

toFloatArray

public float[] toFloatArray()

Description copied from interface: FloatCollection

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

Specified by:

toFloatArray in interface FloatCollection

Overrides:

toFloatArray in class AbstractFloatList

Returns:

a primitive type array containing the items of this collection.

See Also:

• Collection.toArray()

listIterator

public FloatListIterator listIterator()

Description copied from class: AbstractFloatList

Returns a type-specific list iterator on the list.

Specified by:

listIterator in interface FloatList

Specified by:

listIterator in interface List<Float>

Overrides:

listIterator in class AbstractFloatList

See Also:

• List.listIterator()

iterator

public FloatListIterator iterator()

Description copied from class: AbstractFloatList

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

Specified by:

iterator in interface Collection<Float>

Specified by:

iterator in interface FloatCollection

Specified by:

iterator in interface FloatIterable

Specified by:

iterator in interface FloatList

Specified by:

iterator in interface Iterable<Float>

Specified by:

iterator in interface List<Float>

Overrides:

iterator in class AbstractFloatList

Returns:

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

See Also:

• Iterable.iterator()

spliterator

public FloatSpliterator spliterator()

Description copied from interface: FloatList

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 Collection<Float>

Specified by:

spliterator in interface FloatCollection

Specified by:

spliterator in interface FloatIterable

Specified by:

spliterator in interface FloatList

Specified by:

spliterator in interface Iterable<Float>

Specified by:

spliterator in interface List<Float>

Returns:

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

listIterator

public FloatListIterator listIterator(int i)

Description copied from class: AbstractFloatList

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

Specified by:

listIterator in interface FloatList

Specified by:

listIterator in interface List<Float>

Overrides:

listIterator in class AbstractFloatList

See Also:

• List.listIterator(int)

subList

public FloatList subList(int from,
 int to)

Description copied from interface: FloatList

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 FloatList

Specified by:

subList in interface List<Float>

Overrides:

subList in class AbstractFloatList

See Also:

• List.subList(int,int)

forEach

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

Deprecated.

Description copied from interface: FloatIterable

Specified by:

forEach in interface FloatIterable

Specified by:

forEach in interface Iterable<Float>

addAll

public boolean addAll(int i,
 Collection<? extends Float> c)

Description copied from class: AbstractFloatList

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

Specified by:

addAll in interface List<Float>

Overrides:

addAll in class AbstractFloatList

addAll

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

Description copied from class: AbstractFloatList

Specified by:

addAll in interface Collection<Float>

Specified by:

addAll in interface List<Float>

Overrides:

addAll in class AbstractFloatList

removeAll

public boolean removeAll(Collection<?> c)

Description copied from class: AbstractFloatCollection

Specified by:

removeAll in interface Collection<Float>

Specified by:

removeAll in interface List<Float>

Overrides:

removeAll in class AbstractFloatCollection

retainAll

public boolean retainAll(Collection<?> c)

Description copied from class: AbstractFloatCollection

Specified by:

retainAll in interface Collection<Float>

Specified by:

retainAll in interface List<Float>

Overrides:

retainAll in class AbstractFloatCollection

removeIf

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

Deprecated.

Description copied from interface: FloatCollection

Specified by:

removeIf in interface Collection<Float>

Specified by:

removeIf in interface FloatCollection

replaceAll

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

Deprecated.

Description copied from interface: FloatList

Specified by:

replaceAll in interface FloatList

Specified by:

replaceAll in interface List<Float>

replaceAll

public void replaceAll(FloatUnaryOperator operator)

Description copied from interface: FloatList

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

Specified by:

replaceAll in interface FloatList

Parameters:

operator - the operator to apply to each element.

See Also:

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

forEach

public void forEach(FloatConsumer action)

Description copied from class: AbstractFloatList

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 FloatIterable

Overrides:

forEach in class AbstractFloatList

Parameters:

action - the action to be performed for each element.

See Also:

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

addAll

public boolean addAll(FloatList c)

Description copied from interface: FloatList

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 FloatList

See Also:

• List.addAll(Collection)

addAll

public boolean addAll(int i,
 FloatList c)

Description copied from interface: FloatList

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 FloatList

See Also:

• List.addAll(int,Collection)

addAll

public boolean addAll(int i,
 FloatCollection c)

Description copied from interface: FloatList

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 FloatList

Overrides:

addAll in class AbstractFloatList

See Also:

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

addAll

public boolean addAll(FloatCollection c)

Description copied from class: AbstractFloatList

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

Specified by:

addAll in interface FloatCollection

Overrides:

addAll in class AbstractFloatList

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(FloatCollection c)

Description copied from interface: FloatCollection

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

Specified by:

removeAll in interface FloatCollection

Overrides:

removeAll in class AbstractFloatCollection

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(FloatCollection c)

Description copied from interface: FloatCollection

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

Specified by:

retainAll in interface FloatCollection

Overrides:

retainAll in class AbstractFloatCollection

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(FloatPredicate filter)

Description copied from interface: FloatCollection

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

Specified by:

removeIf in interface FloatCollection

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)

doubleIterator

public DoubleIterator doubleIterator()

Description copied from interface: FloatCollection

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.

Specified by:

doubleIterator in interface FloatCollection

Specified by:

doubleIterator in interface FloatIterable

Returns:

a widened primitive iterator on the elements of this collection.

doubleSpliterator

public DoubleSpliterator doubleSpliterator()

Description copied from interface: FloatCollection

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.

Specified by:

doubleSpliterator in interface FloatCollection

Specified by:

doubleSpliterator in interface FloatIterable

Returns:

a widened primitive spliterator on the elements of this collection.

toArray

@Deprecated
public Object[] toArray()

Deprecated.

Specified by:

toArray in interface Collection<Float>

Specified by:

toArray in interface List<Float>

Overrides:

toArray in class AbstractCollection<Float>

sort

public void sort(FloatComparator comparator)

Description copied from interface: FloatList

Sort a list using a type-specific comparator.

Pass null to sort using natural ordering.

Specified by:

sort in interface FloatList

See Also:

• List.sort(java.util.Comparator)

unstableSort

public void unstableSort(FloatComparator comparator)

Description copied from interface: FloatList

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 FloatList

sort

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

Deprecated.

Description copied from interface: FloatList

Specified by:

sort in interface FloatList

Specified by:

sort in interface List<Float>

unstableSort

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

Deprecated.

Description copied from interface: FloatList

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

Specified by:

unstableSort in interface FloatList

getElements

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

Description copied from class: AbstractFloatList

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 FloatList

Overrides:

getElements in class AbstractFloatList

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: AbstractFloatList

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 FloatList

Overrides:

removeElements in class AbstractFloatList

Parameters:

from - the start index (inclusive).

to - the end index (exclusive).

addElements

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

Description copied from class: AbstractFloatList

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

Specified by:

addElements in interface FloatList

Overrides:

addElements in class AbstractFloatList

Parameters:

index - the index at which to add elements.

a - the array containing the elements.

addElements

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

Description copied from class: AbstractFloatList

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 FloatList

Overrides:

addElements in class AbstractFloatList

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(float[] a)

Description copied from interface: FloatList

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

Specified by:

setElements in interface FloatList

Parameters:

a - the array containing the elements.

setElements

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

Description copied from interface: FloatList

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

Specified by:

setElements in interface FloatList

Parameters:

index - the index at which to start setting elements.

a - the array containing the elements.

setElements

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

Description copied from interface: FloatList

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 FloatList

Overrides:

setElements in class AbstractFloatList

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<Float>

Specified by:

size in interface List<Float>

Specified by:

size in class AbstractCollection<Float>

size

public void size(int size)

Description copied from interface: FloatList

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 FloatList

Overrides:

size in class AbstractFloatList

Parameters:

size - the new size.

clear

public void clear()

Description copied from class: AbstractFloatList

Specified by:

clear in interface Collection<Float>

Specified by:

clear in interface List<Float>

Overrides:

clear in class AbstractFloatList

clone

public Object clone()