Interface COM.odi.util.ListIterator

public interface ListIterator

extends Iterator

add(Object)

Inserts the specified element into the List.

hasNext()

Returns true if this ListIterator has more elements when traversing the list in the forward direction.

hasPrevious()

Returns true if this ListIterator has more elements when traversing the list in the reverse direction.

next()

Returns the next element in the List.

nextIndex()

Returns the index of the element that would be returned by a subsequent call to next.

previous()

Returns the previous element in the List.

previousIndex()

Returns the index of the element that would be returned by a subsequent call to previous.

remove()

Removes from the List the last element that was returned by next or previous.

set(Object)

Replaces the last element returned by next or previous with the specified element.

  public abstract boolean hasNext()

Returns true if this ListIterator has more elements when traversing the list in the forward direction. (In other words, returns true if next would return an element rather than throwing an exception.)

  public abstract Object next()

Returns the next element in the List. This method may be called repeatedly to iterate through the List, or intermixed with calls to previous to go back and forth. (Note that alternating calls to next and previous will return the same element repeatedly.)

Throws: NoSuchElementException

iteration has no next element.

  public abstract boolean hasPrevious()

Returns true if this ListIterator has more elements when traversing the list in the reverse direction. (In other words, returns true if previous would return an element rather than throwing an exception.)

  public abstract Object previous()

Returns the previous element in the List. This method may be called repeatedly to iterate through the list backwards, or intermixed with calls to next to go back and forth. (Note that alternating calls to next and previous will return the same element repeatedly.)

Throws: NoSuchElementException

iteration has no previous element.

  public abstract int nextIndex()

Returns the index of the element that would be returned by a subsequent call to next. (Returns List size if the ListIterator is at the end of the list.)

  public abstract int previousIndex()

Returns the index of the element that would be returned by a subsequent call to previous. (Returns -1 if the ListIterator is at the beginning of the list.)

  public abstract void remove()

Removes from the List the last element that was returned by next or previous. This call can only be made once per call to next or previous. Optional operation.

Throws: UnsupportedOperationException

remove is not supported by this ListIterator.

Throws: NoSuchElementException

neither next nor previous have been called, or remove has already been called after the last call to next or previous.

  public abstract void set(Object o)

Replaces the last element returned by next or previous with the specified element. Optional operation.

Throws: UnsupportedOperationException

set is not supported by this ListIterator.

Throws: NoSuchElementException

neither next nor previous have been called, or remove was called after the last call to next or previous.

  public abstract void add(Object o)

Inserts the specified element into the List. The element is inserted immediately before the next element that would be returned by getNext, if any, and after the next element that would be returned by getPrevious, if any. (If the List contains no elements, the new element becomes the sole element on the List.) This call does not move the cursor: a subsequent call to next would return the element that was added by the call, and a subsequent call to previous would be unaffected. Optional operation.

Throws: UnsupportedOperationException

add is not supported by this ListIterator.