Package it.unimi.dsi.fastutil.doubles

Interface DoubleIterable

All Superinterfaces:

java.lang.Iterable<java.lang.Double>

All Known Subinterfaces:

DoubleBidirectionalIterable, DoubleBigList, DoubleCollection, DoubleList, DoubleSet, DoubleSortedSet

All Known Implementing Classes:

AbstractDoubleBigList, AbstractDoubleBigList.DoubleSubList, AbstractDoubleCollection, AbstractDoubleList, AbstractDoubleList.DoubleSubList, AbstractDoubleSet, AbstractDoubleSortedSet, DoubleArrayList, DoubleArraySet, DoubleAVLTreeSet, DoubleBigArrayBigList, DoubleBigLists.EmptyBigList, DoubleBigLists.ListBigList, DoubleBigLists.Singleton, DoubleBigLists.SynchronizedBigList, DoubleBigLists.UnmodifiableBigList, DoubleCollections.EmptyCollection, DoubleCollections.IterableCollection, DoubleCollections.SynchronizedCollection, DoubleCollections.UnmodifiableCollection, DoubleLinkedOpenCustomHashSet, DoubleLinkedOpenHashSet, DoubleLists.EmptyList, DoubleLists.Singleton, DoubleLists.SynchronizedList, DoubleLists.SynchronizedRandomAccessList, DoubleLists.UnmodifiableList, DoubleLists.UnmodifiableRandomAccessList, DoubleOpenCustomHashSet, DoubleOpenHashBigSet, DoubleOpenHashSet, DoubleRBTreeSet, DoubleSets.EmptySet, DoubleSets.Singleton, DoubleSets.SynchronizedSet, DoubleSets.UnmodifiableSet, DoubleSortedSets.EmptySet, DoubleSortedSets.Singleton, DoubleSortedSets.SynchronizedSortedSet, DoubleSortedSets.UnmodifiableSortedSet

public interface DoubleIterable
extends java.lang.Iterable<java.lang.Double>

A type-specific Iterable that strengthens that specification of iterator() and forEach(Consumer).

Note that whenever there exist a primitive consumer in java.util.function (e.g., IntConsumer), trying to access any version of forEach(Consumer) using a lambda expression with untyped arguments will generate an ambiguous method error. This can be easily solved by specifying the type of the argument, as in

    intIterable.forEach((int x) -> { // Do something with x });
 

The same problem plagues, for example, PrimitiveIterator.OfInt.forEachRemaining(java.util.function.IntConsumer).

Warning: Java will let you write “colon” for statements with primitive-type loop variables; however, what is (unfortunately) really happening is that at each iteration an unboxing (and, in the case of fastutil type-specific data structures, a boxing) will be performed. Watch out.

See Also:

Iterable

Method Summary

Modifier and Type	Method	Description
default void	forEach(java.util.function.Consumer<? super java.lang.Double> action)	Deprecated. Please use the corresponding type-specific method instead.
default void	forEach(java.util.function.DoubleConsumer action)	Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.
DoubleIterator	iterator()	Returns a type-specific iterator.

Methods inherited from interface java.lang.Iterable

spliterator

Method Detail

iterator

DoubleIterator iterator()

Returns a type-specific iterator.

Note that this specification strengthens the one given in Iterable.iterator().

Specified by:

iterator in interface java.lang.Iterable<java.lang.Double>

Returns:

a type-specific iterator.

See Also:

Iterable.iterator()

forEach

default void forEach(java.util.function.DoubleConsumer action)

Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.

Parameters:

action - the action to be performed for each element.

Since:

8.0.0

See Also:

Iterable.forEach(java.util.function.Consumer)

forEach

@Deprecated
default void forEach(java.util.function.Consumer<? super java.lang.Double> action)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

forEach in interface java.lang.Iterable<java.lang.Double>