java.util · java.base · since Java 1.2

ListIterator

declaration

public interface ListIterator<E> extends Iterator<E>

A bidirectional cursor over a List that can also insert, replace, and remove at the current position — the one place LinkedList editing beats ArrayList.

Key methods

`boolean hasNext() / hasPrevious()`	Traversal in either direction.
`E next() / E previous()`	Advance / retreat, returning the crossed element.
`int nextIndex() / previousIndex()`	Indices of the elements the cursor sits between.
`void set(E e)`	Replace the last element returned by next/previous.
`void add(E e)`	Insert before the element that next() would return.
`void remove()`	Remove the last element returned (CME-safe).