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java.util
public interface
public interface
java.util.ListIterator<E>
| java.util.ListIterator<E> | Iterator<E> |
An ListIterator is used to sequence over a List of objects. ListIterator can move backwards or forwards through the List.
Summary
Public Methods
| void | add(E object) | |||||
Inserts the specified object into the list between next
and previous. |
||||||
| boolean | hasNext() | |||||
| Returns if there are more elements to iterate. | ||||||
| boolean | hasPrevious() | |||||
| Returns if there are previous elements to iterate. | ||||||
| E | next() | |||||
| Returns the next object in the iteration. | ||||||
| int | nextIndex() | |||||
| Returns the index of the next object in the iteration. | ||||||
| E | previous() | |||||
| Returns the previous object in the iteration. | ||||||
| int | previousIndex() | |||||
| Returns the index of the previous object in the iteration. | ||||||
| void | remove() | |||||
Removes the last object returned by next or
previous from the list. |
||||||
| void | set(E object) | |||||
Replaces the last object returned by next or
previous with the specified object. |
||||||
Methods inherited
from interface
java.util.Iterator
Details
Public Methods
public void add(E object)
Inserts the specified object into the list between
next
and previous. The object inserted will be the previous
object.
Parameters
| object | the object to insert |
|---|
Throws
| UnsupportedOperationException | when adding is not supported by the list being iterated |
|---|---|
| ClassCastException | when the class of the object is inappropriate for the list |
| IllegalArgumentException | when the object cannot be added to the list |
public boolean hasNext()
Returns if there are more elements to iterate.
Returns
- true if there are more elements, false otherwise
See Also
public boolean hasPrevious()
Returns if there are previous elements to iterate.
Returns
- true if there are previous elements, false otherwise
See Also
public E next()
Returns the next object in the iteration.
Returns
- the next object
Throws
| NoSuchElementException | when there are no more elements |
|---|
See Also
public int nextIndex()
Returns the index of the next object in the iteration.
Returns
- the index of the next object
Throws
| NoSuchElementException | when there are no more elements |
|---|
See Also
public E previous()
Returns the previous object in the iteration.
Returns
- the previous object
Throws
| NoSuchElementException | when there are no previous elements |
|---|
See Also
public int previousIndex()
Returns the index of the previous object in the iteration.
Returns
- the index of the previous object
Throws
| NoSuchElementException | when there are no previous elements |
|---|
See Also
public void remove()
Removes the last object returned by
next or
previous from the list.
Throws
| UnsupportedOperationException | when removing is not supported by the list being iterated |
|---|---|
| IllegalStateException | when next or previous have
not been called, or remove or
add have already been called after the last
call to next or previous
|
public void set(E object)
Replaces the last object returned by
next or
previous with the specified object.
Parameters
| object | the object to add |
|---|
Throws
| UnsupportedOperationException | when adding is not supported by the list being iterated |
|---|---|
| ClassCastException | when the class of the object is inappropriate for the list |
| IllegalArgumentException | when the object cannot be added to the list |
| IllegalStateException | when next or previous have
not been called, or remove or
add have already been called after the last
call to next or previous
|