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| java.util.Iterator<E> |
 Known Indirect Subclasses
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An iterator over a sequence of objects, such as a collection.
If a collection has been changed since the iterator was created,
methods next and hasNext() may throw a ConcurrentModificationException.
It is not possible to guarantee that this mechanism works in all cases of unsynchronized
concurrent modification. It should only be used for debugging purposes. Iterators with this
behavior are called fail-fast iterators.
Implementing Iterable and returning an Iterator allows your
class to be used as a collection with the enhanced for loop.
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Returns true if there is at least one more element, false otherwise.
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Returns the next object and advances the iterator.
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Removes the last object returned by
next from the collection.
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Returns true if there is at least one more element, false otherwise.
Returns the next object and advances the iterator.
| NoSuchElementException | if there are no more elements. |
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Removes the last object returned by next from the collection.
This method can only be called once between each call to next.
| UnsupportedOperationException | if removing is not supported by the collection being iterated. |
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| IllegalStateException | if next has not been called, or remove has
already been called after the last call to next.
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