BidirectionalIterator (JHighlight 1.1.0 API)

All Superinterfaces:

Iterator<K>

All Known Subinterfaces:

CharBidirectionalIterator, CharListIterator, ObjectBidirectionalIterator<K>, ObjectListIterator<K>

All Known Implementing Classes:

AbstractCharBidirectionalIterator, AbstractCharListIterator, AbstractObjectBidirectionalIterator, AbstractObjectListIterator, CharIterators.EmptyIterator, CharIterators.UnmodifiableBidirectionalIterator, CharIterators.UnmodifiableListIterator, ObjectIterators.EmptyIterator, ObjectIterators.UnmodifiableBidirectionalIterator, ObjectIterators.UnmodifiableListIterator
```
public interface BidirectionalIterator<K>
extends Iterator<K>
```
A bidirectional Iterator.
This kind of iterator is essentially a ListIterator that does not support ListIterator.previousIndex() and ListIterator.nextIndex(). It is useful for those maps that can easily provide bidirectional iteration, but provide no index.
Note that iterators returned by fastutil classes are more specific, and support skipping. This class serves the purpose of organising in a cleaner way the relationships between various iterators.

See Also:

Iterator, ListIterator

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`hasPrevious()`	Returns whether there is a previous element.
`K`	`previous()`	Returns the previous element from the collection.

Methods inherited from interface java.util.Iterator
forEachRemaining, hasNext, next, remove

- Method Detail
  - previous
```
K previous()
```
    Returns the previous element from the collection.
    
    Returns:
    
    the previous element from the collection.
    
    See Also:
    
    ListIterator.previous()
  - hasPrevious
```
boolean hasPrevious()
```
    Returns whether there is a previous element.
    
    Returns:
    
    whether there is a previous element.
    
    See Also:
    
    ListIterator.hasPrevious()