Package it.unimi.dsi.fastutil.doubles

Interface DoubleBidirectionalIterator

All Superinterfaces:

BidirectionalIterator<Double>, DoubleIterator, Iterator<Double>, ObjectBidirectionalIterator<Double>, ObjectIterator<Double>, PrimitiveIterator<Double,DoubleConsumer>, PrimitiveIterator.OfDouble

All Known Subinterfaces:

DoubleBigListIterator, DoubleListIterator

All Known Implementing Classes:

AbstractDoubleBidirectionalIterator, AbstractDoubleBigListIterator, AbstractDoubleListIterator, DoubleBigListIterators.AbstractIndexBasedBigListIterator, DoubleBigListIterators.BigListIteratorListIterator, DoubleBigListIterators.EmptyBigListIterator, DoubleBigListIterators.UnmodifiableBigListIterator, DoubleIterators.AbstractIndexBasedListIterator, 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

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.PrimitiveIterator

PrimitiveIterator.OfDouble, PrimitiveIterator.OfInt, PrimitiveIterator.OfLong

Method Summary

Modifier and Type	Method	Description
default int	back(int n)	Moves back for the given number of elements.
default Double	previous()	Deprecated. Please use the corresponding type-specific method instead.
double	previousDouble()	Returns the previous element as a primitive type.
default int	skip(int n)	Skips the given number of elements.

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

hasPrevious

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

forEachRemaining, forEachRemaining, next, nextDouble

Methods inherited from interface java.util.Iterator

hasNext, remove

Methods inherited from interface java.util.PrimitiveIterator.OfDouble

forEachRemaining

Method Details

previousDouble

double previousDouble()

Returns the previous element as a primitive type.

Returns:

the previous element in the iteration.

See Also:

• ListIterator.previous()

previous

@Deprecated
default Double previous()

Deprecated.

Please use the corresponding type-specific method instead.

Returns the previous element from the collection.

Specified by:

previous in interface BidirectionalIterator<Double>

Returns:

the previous element from the collection.

See Also:

• ListIterator.previous()

back

default 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 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:

• previous()

skip

default int skip(int n)

Skips the given number of elements.

The effect of this call is exactly the same as that of calling DoubleIterator.next() for n times (possibly stopping if Iterator.hasNext() becomes false).

Specified by:

skip in interface DoubleIterator

Specified by:

skip in interface ObjectBidirectionalIterator<Double>

Specified by:

skip in interface ObjectIterator<Double>

Parameters:

n - the number of elements to skip.

Returns:

the number of elements actually skipped.

See Also:

• Iterator.next()