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A bi-directional iterator over long
values.
LongListIteratorListIterator
,
ListIteratorLongListIterator
Method Summary | |
void |
add(long element)
Inserts the specified element into my underlying collection (optional operation). |
boolean |
hasNext()
Returns true iff I have more elements
when traversed in the forward direction. |
boolean |
hasPrevious()
Returns true iff I have more elements
when traversed in the reverse direction. |
long |
next()
Returns the next element in me when traversed in the forward direction. |
int |
nextIndex()
Returns the index of the element that would be returned by a subsequent call to next() , or the number
of elements in my iteration if I have no next element. |
long |
previous()
Returns the next element in me when traversed in the reverse direction. |
int |
previousIndex()
Returns the index of the element that would be returned by a subsequent call to previous() , or
-1 if I have no previous element. |
void |
remove()
Removes from my underlying collection the last element returned by next() or previous()
(optional operation). |
void |
set(long element)
Replaces in my underlying collection the last element returned by next() or previous()
with the specified value (optional operation). |
Method Detail |
public void add(long element)
next()
, if any,
and immediately after the next element that would have been
returned by previous()
, if any.
The new element is inserted immediately before the implied
cursor. A subsequent call to previous()
will return
the added element, a subsequent call to next()
will
be unaffected. This call increases by one the value that
would be returned by a call to nextIndex()
or
previousIndex()
.
element
- the value to be inserted
java.lang.UnsupportedOperationException
- when this operation is not
supported
java.lang.IllegalArgumentException
- if some aspect of the specified element
prevents it from being addedpublic boolean hasNext()
true
iff I have more elements
when traversed in the forward direction.
(In other words, returns true
iff
a call to next()
will return an element
rather than throwing an exception.
hasNext
in interface LongIterator
true
iff I have more elements when
traversed in the forward directionpublic boolean hasPrevious()
true
iff I have more elements
when traversed in the reverse direction.
(In other words, returns true
iff
a call to previous()
will return an element
rather than throwing an exception.
true
iff I have more elements when
traversed in the reverse directionpublic long next()
next
in interface LongIterator
NoSuchElementException
- if there is no next elementpublic int nextIndex()
next()
, or the number
of elements in my iteration if I have no next element.
public long previous()
NoSuchElementException
- if there is no previous elementpublic int previousIndex()
previous()
, or
-1
if I have no previous element.
public void remove()
next()
or previous()
(optional operation).
remove
in interface LongIterator
java.lang.UnsupportedOperationException
- if this operation is not
supported
java.lang.IllegalStateException
- if neither next()
nor
previous()
has yet been called, or
remove()
or add(long)
has already been called since
the last call to next()
or previous()
.public void set(long element)
next()
or previous()
with the specified value (optional operation).
element
- the value to replace the last returned element with
java.lang.UnsupportedOperationException
- if this operation is not
supported
java.lang.IllegalStateException
- if neither next()
nor
previous()
has yet been called, or
remove()
or add(long)
has already been called since
the last call to next()
or previous()
.
java.lang.IllegalArgumentException
- if some aspect of the specified element
prevents it from being added
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