it.unimi.dsi.fastutil.doubles
Interface DoubleBidirectionalIterator

All Superinterfaces:

BidirectionalIterator<Double>, DoubleIterator, Iterator<Double>, ObjectBidirectionalIterator<Double>, ObjectIterator<Double>

All Known Subinterfaces:

DoubleListIterator

All Known Implementing Classes:

AbstractDoubleBidirectionalIterator, AbstractDoubleListIterator, DoubleIterators.EmptyIterator, DoubleIterators.UnmodifiableBidirectionalIterator, DoubleIterators.UnmodifiableListIterator

public interface DoubleBidirectionalIterator
extends DoubleIterator, ObjectBidirectionalIterator<Double>

A type-specific bidirectional iterator; provides an additional method to avoid (un)boxing, and the possibility to skip elements backwards.

See Also:

BidirectionalIterator

Method Summary

int	back(int n) Moves back for the given number of elements.
double	previousDouble() Returns the previous element as a primitive type.

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

nextDouble, skip

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Methods inherited from interface it.unimi.dsi.fastutil.objects.ObjectIterator

skip

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Methods inherited from interface it.unimi.dsi.fastutil.BidirectionalIterator

hasPrevious, previous

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Method Detail

previousDouble

double previousDouble()

Returns the previous element as a primitive type.

Returns:

the previous element in the iteration.

See Also:

ListIterator.previous()

back

int back(int n)

Moves back for the given number of elements.

The effect of this call is exactly the same as that of calling BidirectionalIterator.previous() for n times (possibly stopping if BidirectionalIterator.hasPrevious() becomes false).

Specified by:

back in interface ObjectBidirectionalIterator<Double>

Parameters:

n - the number of elements to skip back.

Returns:

the number of elements actually skipped.

See Also:

Iterator.next()