Package it.unimi.dsi.fastutil.doubles

Class DoubleSets.Singleton

java.lang.Object

java.util.AbstractCollection<Double>

it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

it.unimi.dsi.fastutil.doubles.AbstractDoubleSet

it.unimi.dsi.fastutil.doubles.DoubleSets.Singleton

All Implemented Interfaces:

DoubleCollection, DoubleIterable, DoubleSet, Serializable, Cloneable, Iterable<Double>, Collection<Double>, Set<Double>

Direct Known Subclasses:

DoubleSortedSets.Singleton

Enclosing class:

DoubleSets

public static class DoubleSets.Singleton
extends AbstractDoubleSet
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(DoubleCollection c)	Adds all elements of the given type-specific collection to this collection.
boolean	addAll(Collection<? extends Double> c)
Object	clone()
boolean	contains(double k)	Returns true if this collection contains the specified element.
void	forEach(Consumer<? super Double> action)	Deprecated.
void	forEach(DoubleConsumer 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.
DoubleListIterator	iterator()	Returns a type-specific iterator on the elements of this collection.
boolean	remove(double k)	Removes an element from this set.
boolean	removeAll(DoubleCollection c)	Remove from this collection all elements in the given type-specific collection.
boolean	removeAll(Collection<?> c)
boolean	removeIf(DoublePredicate filter)	Remove from this collection all elements which satisfy the given predicate.
boolean	removeIf(Predicate<? super Double> filter)	Deprecated.
boolean	retainAll(DoubleCollection c)	Retains in this collection only elements from the given type-specific collection.
boolean	retainAll(Collection<?> c)
int	size()
DoubleSpliterator	spliterator()	Returns a type-specific spliterator on the elements of this set.
Object[]	toArray()	Deprecated.
double[]	toDoubleArray()	Returns a primitive type array containing the items of this collection.

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleSet

equals, hashCode, rem

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

add, add, contains, containsAll, containsAll, forEach, remove, removeIf, toArray, toDoubleArray, 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 java.util.Collection

toArray

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleCollection

add, containsAll, doubleIterator, doubleParallelStream, doubleSpliterator, doubleStream, parallelStream, removeIf, stream, toArray, toDoubleArray

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleIterable

forEach

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleSet

add, contains, remove

Methods inherited from interface java.util.Set

clear, containsAll, isEmpty, toArray

Method Details

contains

public boolean contains(double k)

Description copied from class: AbstractDoubleCollection

Returns true if this collection contains the specified element.

Specified by:

contains in interface DoubleCollection

Overrides:

contains in class AbstractDoubleCollection

See Also:

• Collection.contains(Object)

remove

public boolean remove(double k)

Description copied from class: AbstractDoubleSet

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 DoubleSet

Overrides:

remove in class AbstractDoubleSet

See Also:

• Collection.remove(Object)

iterator

public DoubleListIterator iterator()

Description copied from interface: DoubleCollection

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

Specified by:

iterator in interface Collection<Double>

Specified by:

iterator in interface DoubleCollection

Specified by:

iterator in interface DoubleIterable

Specified by:

iterator in interface DoubleSet

Specified by:

iterator in interface Iterable<Double>

Specified by:

iterator in interface Set<Double>

Specified by:

iterator in class AbstractDoubleSet

Returns:

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

See Also:

• Iterable.iterator()

spliterator

public DoubleSpliterator spliterator()

Description copied from interface: DoubleSet

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 Collection<Double>

Specified by:

spliterator in interface DoubleCollection

Specified by:

spliterator in interface DoubleIterable

Specified by:

spliterator in interface DoubleSet

Specified by:

spliterator in interface Iterable<Double>

Specified by:

spliterator in interface Set<Double>

Returns:

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

size

public int size()

Specified by:

size in interface Collection<Double>

Specified by:

size in interface Set<Double>

Specified by:

size in class AbstractCollection<Double>

toDoubleArray

public double[] toDoubleArray()

Description copied from interface: DoubleCollection

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

Specified by:

toDoubleArray in interface DoubleCollection

Overrides:

toDoubleArray in class AbstractDoubleCollection

Returns:

a primitive type array containing the items of this collection.

See Also:

• Collection.toArray()

forEach

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

Deprecated.

Description copied from interface: DoubleIterable

Specified by:

forEach in interface DoubleIterable

Specified by:

forEach in interface Iterable<Double>

addAll

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

Description copied from class: AbstractDoubleCollection

Specified by:

addAll in interface Collection<Double>

Specified by:

addAll in interface Set<Double>

Overrides:

addAll in class AbstractDoubleCollection

removeAll

public boolean removeAll(Collection<?> c)

Description copied from class: AbstractDoubleCollection

Specified by:

removeAll in interface Collection<Double>

Specified by:

removeAll in interface Set<Double>

Overrides:

removeAll in class AbstractDoubleCollection

retainAll

public boolean retainAll(Collection<?> c)

Description copied from class: AbstractDoubleCollection

Specified by:

retainAll in interface Collection<Double>

Specified by:

retainAll in interface Set<Double>

Overrides:

retainAll in class AbstractDoubleCollection

removeIf

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

Deprecated.

Description copied from interface: DoubleCollection

Specified by:

removeIf in interface Collection<Double>

Specified by:

removeIf in interface DoubleCollection

forEach

public void forEach(DoubleConsumer action)

Description copied from interface: DoubleIterable

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 DoubleIterable

Parameters:

action - the action to be performed for each element.

See Also:

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

addAll

public boolean addAll(DoubleCollection c)

Description copied from interface: DoubleCollection

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

Specified by:

addAll in interface DoubleCollection

Overrides:

addAll in class AbstractDoubleCollection

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(DoubleCollection c)

Description copied from interface: DoubleCollection

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

Specified by:

removeAll in interface DoubleCollection

Overrides:

removeAll in class AbstractDoubleCollection

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(DoubleCollection c)

Description copied from interface: DoubleCollection

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

Specified by:

retainAll in interface DoubleCollection

Overrides:

retainAll in class AbstractDoubleCollection

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(DoublePredicate filter)

Description copied from interface: DoubleCollection

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

Specified by:

removeIf in interface DoubleCollection

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)

toArray

@Deprecated
public Object[] toArray()

Deprecated.

Specified by:

toArray in interface Collection<Double>

Specified by:

toArray in interface Set<Double>

Overrides:

toArray in class AbstractCollection<Double>

clone

public Object clone()