Package it.unimi.dsi.fastutil.floats

Class FloatCollections.EmptyCollection

java.lang.Object

java.util.AbstractCollection<Float>

it.unimi.dsi.fastutil.floats.AbstractFloatCollection

it.unimi.dsi.fastutil.floats.FloatCollections.EmptyCollection

All Implemented Interfaces:

FloatCollection, FloatIterable, Iterable<Float>, Collection<Float>

Direct Known Subclasses:

FloatBigLists.EmptyBigList, FloatLists.EmptyList, FloatSets.EmptySet

Enclosing class:

FloatCollections

public abstract static class FloatCollections.EmptyCollection
extends AbstractFloatCollection

An immutable class representing an empty type-specific collection.

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

Method Summary

Modifier and Type	Method	Description
boolean	addAll(FloatCollection c)	Adds all elements of the given type-specific collection to this collection.
boolean	addAll(Collection<? extends Float> c)
void	clear()
boolean	contains(float k)	Returns true if this collection contains the specified element.
boolean	containsAll(FloatCollection c)	Checks whether this collection contains all elements from the given type-specific collection.
boolean	containsAll(Collection<?> c)
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.
boolean	equals(Object o)
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.
int	hashCode()
FloatBidirectionalIterator	iterator()	Returns a type-specific iterator on the elements of this collection.
boolean	removeAll(FloatCollection c)	Remove from this collection all elements in the given type-specific collection.
boolean	removeAll(Collection<?> c)
boolean	removeIf(FloatPredicate filter)	Remove from this collection all elements which satisfy the given predicate.
boolean	removeIf(Predicate<? super Float> filter)	Deprecated.
boolean	retainAll(FloatCollection c)	Retains in this collection only elements from the given type-specific collection.
boolean	retainAll(Collection<?> c)
int	size()
FloatSpliterator	spliterator()	Returns a type-specific spliterator on the elements of this collection.
Object[]	toArray()
<T> T[]	toArray(T[] array)
float[]	toFloatArray()	Returns a primitive type array containing the items of this collection.
float[]	toFloatArray(float[] a)	Deprecated.

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

add, add, contains, rem, remove, toArray, toString

Methods inherited from class java.util.AbstractCollection

isEmpty

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

isEmpty, toArray

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

doubleParallelStream, doubleStream, parallelStream, removeIf, stream

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

forEach

Method Details

contains

public boolean contains(float k)

Description copied from class: AbstractFloatCollection

Returns true if this collection contains the specified element.

Specified by:

contains in interface FloatCollection

Overrides:

contains in class AbstractFloatCollection

See Also:

• Collection.contains(Object)

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<Float>

Overrides:

toArray in class AbstractCollection<Float>

toArray

public <T> T[] toArray(T[] array)

Specified by:

toArray in interface Collection<Float>

Overrides:

toArray in class AbstractCollection<Float>

iterator

public FloatBidirectionalIterator iterator()

Description copied from interface: FloatCollection

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 Iterable<Float>

Specified by:

iterator in class AbstractFloatCollection

Returns:

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

See Also:

• Iterable.iterator()

spliterator

public FloatSpliterator spliterator()

Description copied from interface: FloatCollection

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.

size

public int size()

Specified by:

size in interface Collection<Float>

Specified by:

size in class AbstractCollection<Float>

clear

public void clear()

Specified by:

clear in interface Collection<Float>

Overrides:

clear in class AbstractCollection<Float>

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<Float>

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<Float>

Overrides:

equals in class Object

forEach

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

Deprecated.

Description copied from interface: FloatIterable

containsAll

public boolean containsAll(Collection<?> c)

Description copied from class: AbstractFloatCollection

Specified by:

containsAll in interface Collection<Float>

Overrides:

containsAll in class AbstractFloatCollection

addAll

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

Description copied from class: AbstractFloatCollection

Specified by:

addAll in interface Collection<Float>

Overrides:

addAll in class AbstractFloatCollection

removeAll

public boolean removeAll(Collection<?> c)

Description copied from class: AbstractFloatCollection

Specified by:

removeAll in interface Collection<Float>

Overrides:

removeAll in class AbstractFloatCollection

retainAll

public boolean retainAll(Collection<?> c)

Description copied from class: AbstractFloatCollection

Specified by:

retainAll in interface Collection<Float>

Overrides:

retainAll in class AbstractFloatCollection

removeIf

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

Deprecated.

Description copied from interface: FloatCollection

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 AbstractFloatCollection

Returns:

a primitive type array containing the items of this collection.

See Also:

• Collection.toArray()

toFloatArray

@Deprecated
public float[] toFloatArray(float[] a)

Deprecated.

Description copied from class: AbstractFloatCollection

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:

toFloatArray in interface FloatCollection

Overrides:

toFloatArray in class AbstractFloatCollection

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:

• Collection.toArray(Object[])

forEach

public void forEach(FloatConsumer action)

Description copied from interface: FloatIterable

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

Parameters:

action - the action to be performed for each element.

See Also:

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

containsAll

public boolean containsAll(FloatCollection c)

Description copied from interface: FloatCollection

Checks whether this collection contains all elements from the given type-specific collection.

Specified by:

containsAll in interface FloatCollection

Overrides:

containsAll in class AbstractFloatCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection contains all elements of the argument.

See Also:

• Collection.containsAll(Collection)

addAll

public boolean addAll(FloatCollection c)

Description copied from interface: FloatCollection

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

Specified by:

addAll in interface FloatCollection

Overrides:

addAll in class AbstractFloatCollection

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.

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.

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.

Returns:

a widened primitive spliterator on the elements of this collection.