ReferenceSets.EmptySet (fastutil 7.1.0)

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java.lang.Object
- java.util.AbstractCollection<K>
- - it.unimi.dsi.fastutil.objects.AbstractReferenceCollection<K>
  - - it.unimi.dsi.fastutil.objects.ReferenceCollections.EmptyCollection<K>
    - - it.unimi.dsi.fastutil.objects.ReferenceSets.EmptySet<K>

All Implemented Interfaces:

ObjectIterable<K>, ReferenceCollection<K>, ReferenceSet<K>, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<K>, java.util.Collection<K>, java.util.Set<K>

Direct Known Subclasses:

ReferenceSortedSets.EmptySet

Enclosing class:

ReferenceSets
```
public static class ReferenceSets.EmptySet<K>
extends ReferenceCollections.EmptyCollection<K>
implements ReferenceSet<K>, java.io.Serializable, java.lang.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

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.lang.Object`	`clone()`
`boolean`	`equals(java.lang.Object o)`
`boolean`	`remove(java.lang.Object ok)` Delegates to `AbstractReferenceCollection.rem(Object)`.

Methods inherited from class it.unimi.dsi.fastutil.objects.ReferenceCollections.EmptyCollection
add, clear, contains, hashCode, iterator, size, toArray, toArray

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractReferenceCollection
addAll, containsAll, isEmpty, objectIterator, rem, removeAll, retainAll, toString

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.objects.ReferenceSet
iterator

Methods inherited from interface it.unimi.dsi.fastutil.objects.ReferenceCollection
objectIterator, toArray

Methods inherited from interface java.util.Set
add, addAll, clear, contains, containsAll, hashCode, isEmpty, removeAll, retainAll, size, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable
forEach

- Method Detail
  - remove
```
public boolean remove(java.lang.Object ok)
```
    Description copied from class: AbstractReferenceCollection
    
    Delegates to AbstractReferenceCollection.rem(Object).
    
    Specified by:
    
    remove in interface ReferenceSet<K>
    
    Specified by:
    
    remove in interface java.util.Collection<K>
    
    Specified by:
    
    remove in interface java.util.Set<K>
    
    Overrides:
    
    remove in class ReferenceCollections.EmptyCollection<K>
    
    See Also:
    
    Collection.remove(Object)
  - clone
```
public java.lang.Object clone()
```
    Overrides:
    
    clone in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object o)
```
    Specified by:
    
    equals in interface java.util.Collection<K>
    
    Specified by:
    
    equals in interface java.util.Set<K>
    
    Overrides:
    
    equals in class ReferenceCollections.EmptyCollection<K>

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