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java.base / java.lang
Interface Iterable<T>
Type Parameters:
T - the type of elements returned by the iterator
All Known Subinterfaces:
BlockingDeque<E>, BlockingQueue<E>, Collection<E>, Deque<E>, List<E>, NavigableSet<E>, Queue<E>, Set<E>, SortedSet<E>, TransferQueue<E>
All Known Implementing Classes:
AbstractCollection, AbstractList, AbstractQueue, AbstractSequentialList, AbstractSet, ArrayBlockingQueue, ArrayDeque, ArrayList, ConcurrentHashMap.KeySetView, ConcurrentLinkedDeque, ConcurrentLinkedQueue, ConcurrentSkipListSet, CopyOnWriteArrayList, CopyOnWriteArraySet, DelayQueue, EnumSet, HashSet, LinkedBlockingDeque, LinkedBlockingQueue, LinkedHashSet, LinkedList, LinkedTransferQueue, PriorityBlockingQueue, PriorityQueue, ServiceLoader, Stack, SynchronousQueue, TreeSet, Vector
public interface Iterable<T>
Implementing this interface allows an object to be the target of the enhanced for statement (sometimes called the "for-each loop" statement).
Since:
1.5
Method Summary
default void
forEach(Consumer<? super T> action)
Performs the given action for each element of the Iterable until all elements have been processed or the action throws an exception.
Iterator<T>
iterator()
Returns an iterator over elements of type T.
default Spliterator<T>
spliterator()
Creates a Spliterator over the elements described by this Iterable.
Method Detail
iterator
Iterator<T> iterator
()
Returns an iterator over elements of type T.
Returns:
an Iterator.
forEach
default void forEach
(Consumer<? super T> action)
Performs the given action for each element of the Iterable until all elements have been processed or the action throws an exception. Actions are performed in the order of iteration, if that order is specified. Exceptions thrown by the action are relayed to the caller.

The behavior of this method is unspecified if the action performs side-effects that modify the underlying source of elements, unless an overriding class has specified a concurrent modification policy.

Implementation Requirements:

The default implementation behaves as if: 


     for (T t : this)
         action.accept(t);
Parameters:
action - The action to be performed for each element
Throws:
NullPointerException - if the specified action is null
Since:
1.8
spliterator
default Spliterator<T> spliterator
()
Creates a Spliterator over the elements described by this Iterable.
Implementation Requirements:
The default implementation creates an early-binding spliterator from the iterable's Iterator. The spliterator inherits the fail-fast properties of the iterable's iterator.
Implementation Note:
The default implementation should usually be overridden. The spliterator returned by the default implementation has poor splitting capabilities, is unsized, and does not report any spliterator characteristics. Implementing classes can nearly always provide a better implementation.
Returns:
a Spliterator over the elements described by this Iterable.
Since:
1.8
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Java API documentation generated with FlexDoc/Javadoc 2.0 using JavadocClassic 3.0 template set.
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