it.unimi.dsi.fastutil.doubles

Class DoubleSets.EmptySet

java.lang.Object

java.util.AbstractCollection<Double>

it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

it.unimi.dsi.fastutil.doubles.DoubleCollections.EmptyCollection

it.unimi.dsi.fastutil.doubles.DoubleSets.EmptySet

All Implemented Interfaces:

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

Direct Known Subclasses:

DoubleSortedSets.EmptySet

Enclosing class:

DoubleSets

public static class DoubleSets.EmptySet
extends DoubleCollections.EmptyCollection
implements DoubleSet, Serializable, Cloneable

An immutable class representing the empty set and implementing a type-specific set interface.

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 and Description
Object	clone()
boolean	equals(Object o)
boolean	rem(double k) Deprecated.
boolean	remove(double ok) Removes an element from this set.

Methods inherited from class it.unimi.dsi.fastutil.doubles.DoubleCollections.EmptyCollection

addAll, addAll, clear, contains, hashCode, iterator, removeAll, removeAll, retainAll, retainAll, size, toArray

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

add, add, contains, containsAll, remove, toArray, toDoubleArray, toDoubleArray, toString

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty, toArray

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

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

add, contains, iterator, remove

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

add, addAll, contains, containsAll, removeAll, removeIf, removeIf, retainAll, toArray, toDoubleArray, toDoubleArray

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

forEach, forEach

Methods inherited from interface java.util.Set

addAll, clear, containsAll, hashCode, isEmpty, removeAll, retainAll, size, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, stream

Method Detail

remove

public boolean remove(double ok)

Description copied from interface: DoubleSet

Removes an element from this set.

Note that the corresponding method of a type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface DoubleSet

See Also:

Collection.remove(Object)

clone

public Object clone()

Overrides:

clone in class Object

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<Double>

Specified by:

equals in interface Set<Double>

Overrides:

equals in class DoubleCollections.EmptyCollection

rem

@Deprecated
public boolean rem(double k)

Deprecated.

Description copied from class: AbstractDoubleCollection

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

Note that this method should be called remove(), but the clash with the similarly named index-based method in the List interface forces us to use a distinguished name. For simplicity, the set interfaces reinstates remove().

This implementation iterates over the elements in the collection, looking for the specified element and tries to remove it.

Specified by:

rem in interface DoubleCollection

Specified by:

rem in interface DoubleSet

Overrides:

rem in class AbstractDoubleCollection

See Also:

Collection.remove(Object)