Module java.base
Package java.lang

Interface Iterable<T>

    • Method Detail

      • iterator

        Iterator<T> iterator()
        Returns an iterator over elements of type T.
        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 - The action to be performed for each element
        NullPointerException - if the specified action is null
      • 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.
        a Spliterator over the elements described by this Iterable.