Public Member Functions | |
| boolean | hasNext () |
| E | next () |
| void | remove () |
Detailed Description
An iterator over a sequence of objects, such as a collection.
If a collection has been changed since the iterator was created, methods
and
may throw a
. 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
allows your class to be used as a collection with the enhanced for loop.
- Parameters
-
<E> the type of object returned by the iterator.
Member Function Documentation
◆ hasNext()
| boolean java.util.Iterator< E >.hasNext | ( | ) |
Returns true if there is at least one more element, false otherwise.
- See also
- next
Implemented in java.util.ListIterator< E >.
◆ next()
| E java.util.Iterator< E >.next | ( | ) |
Returns the next object and advances the iterator.
- Returns
- the next object.
- Exceptions
-
NoSuchElementException if there are no more elements.
- See also
- hasNext
Implemented in java.util.ListIterator< E >.
◆ remove()
| void java.util.Iterator< E >.remove | ( | ) |
Removes the last object returned by
from the collection. This method can only be called once between each call to
.
- Exceptions
-
UnsupportedOperationException if removing is not supported by the collection being iterated. IllegalStateException if has not been called, or has already been called after the last call to .remove
Implemented in java.util.ListIterator< E >.
The documentation for this interface was generated from the following file:
- src/java/util/Iterator.java
