List iterator that starts at a specified position in the list. ListIterator, that allows element insertion and replacement, andīidirectional access in addition to the normal operations that the The List interface provides a special iterator, called a Preferable to indexing through it if the caller does not know the Thus, iterating over the elements in a list is typically That these operations may execute in time proportional to the index valueįor some implementations (the LinkedList class, forĮxample). The List interface provides four methods for positional (indexed)Īccess to list elements. Declarations for other inherited methods are Specified in the Collection interface, on the contracts of the The List interface places additional stipulations, beyond those Throwing runtime exceptions when the user attempts to insert them, but we That someone might wish to implement a list that prohibits duplicates, by Null elements if they allow null elements at all. Such that e1.equals(e2), and they typically allow multiple Lists typically allow pairs of elements e1 and e2 Unlike sets, lists typically allow duplicate elements. The list), and search for elements in the list. The user can access elements by their integer index (position in Interface has precise control over where in the list each element is An ordered collection (also known as a sequence).
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