- Type Parameters:
T- the type of elements returned by the iterator
- All Known Subinterfaces:
BeanContext,BeanContextServices,BlockingDeque<E>,BlockingQueue<E>,Collection<E>,Deque<E>,DirectoryStream<T>,EventSet,List<E>,NavigableSet<E>,NodeSetData<T>,Path,Queue<E>,SecureDirectoryStream<T>,Set<E>,SortedSet<E>,TransferQueue<E>,XPathNodes
- All Known Implementing Classes:
AbstractCollection,AbstractList,AbstractQueue,AbstractSequentialList,AbstractSet,ArrayBlockingQueue,ArrayDeque,ArrayList,AttributeList,BatchUpdateException,BeanContextServicesSupport,BeanContextSupport,ConcurrentHashMap.KeySetView,ConcurrentLinkedDeque,ConcurrentLinkedQueue,ConcurrentSkipListSet,CopyOnWriteArrayList,CopyOnWriteArraySet,DataTruncation,DelayQueue,DocTreePath,EnumSet,HashSet,JobStateReasons,LinkedBlockingDeque,LinkedBlockingQueue,LinkedHashSet,LinkedList,LinkedTransferQueue,PriorityBlockingQueue,PriorityQueue,RoleList,RoleUnresolvedList,RowSetWarning,SerialException,ServiceLoader,SQLClientInfoException,SQLDataException,SQLException,SQLFeatureNotSupportedException,SQLIntegrityConstraintViolationException,SQLInvalidAuthorizationSpecException,SQLNonTransientConnectionException,SQLNonTransientException,SQLRecoverableException,SQLSyntaxErrorException,SQLTimeoutException,SQLTransactionRollbackException,SQLTransientConnectionException,SQLTransientException,SQLWarning,Stack,SyncFactoryException,SynchronousQueue,SyncProviderException,TreePath,TreeSet,Vector
public interfaceIterable<T>Implementing this interface allows an object to be the target of the enhancedforstatement (sometimes called the "for-each loop" statement).- Since:
- 1.5
- SeeThe Java™ Language Specification:
- 14.14.2 The enhanced
forstatement
Method Summary
All Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description default voidforEach(Consumer<? superT> action)Performs the given action for each element of theIterableuntil all elements have been processed or the action throws an exception.Iterator<T>iterator()Returns an iterator over elements of typeT.defaultSpliterator<T>spliterator()Creates aSpliteratorover the elements described by thisIterable.
Method Detail
forEach
default void forEach(Consumer<? superT> action)
Performs the given action for each element of theIterableuntil 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 aSpliteratorover the elements described by thisIterable.- Implementation Requirements:
- The default implementation creates anearly-binding spliterator from the iterable's
Iterator. The spliterator inherits thefail-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
Spliteratorover the elements described by thisIterable. - Since:
- 1.8