List Interface

ü      Extends the Collection interface.

ü      Used to create lists of object references.

ü      Provides additional methods to create a collection that stores elements in orderly fashion.

ü      A List may contain duplicate elements.

ü      The two general-purpose implementations of List are ArrayList and LinkedList.

public interface List extends Collection

An ordered collection (also known as a sequence).

All Known Implementing Classes: AbstractList, ArrayList, LinkedList, Vector

Some Important Methods
void	add(int index, Object element) Inserts the specified element at the specified position in this list.
boolean	add(Object o)   Appends the specified element to the end of this list.
boolean	addAll(int index, Collection c) Inserts all of the elements in the specified collection into this list at the specified position
void	clear()  Removes all of the elements from this list
boolean	contains(Object o) Returns true if this list contains the specified element.
boolean	equals(Object o) Compares the specified object with this list for equality.
Object	get(int index) Returns the element at the specified position in this list.
int	indexOf(Object o) Returns the index in this list of the first occurrence of the specified element, or -1 if this list does not contain this element.
boolean	isEmpty() Returns true if this list contains no elements.
Object	remove(int index) Removes the element at the specified position in this list.
int	size() Returns the number of elements in this list.
List	subList(int fromIndex, int toIndex) Returns a view of the portion of this list between the specified fromIndex , inclusive, and toIndex , exclusive.
Object[]	toArray() Returns an array containing all of the elements in this list in proper sequence.