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Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.util

Source Cross Reference Class Diagram Java Document (Java Doc)

java.util .LinkedList

LinkedList
public class LinkedList extends AbstractSequentialList implements List<E>,Queue<E>,Cloneable,Serializable(Code)
	LinkedList is an implementation of List, backed by a linked list. All optional operations are supported, adding, removing and replacing. The elements can be any objects. since: 1.2

Field Summary
transient int	size
transient Link<E>	voidLink

Constructor Summary
public	LinkedList() Constructs a new empty instance of LinkedList.
public	LinkedList(Collection<? extends E> collection) Constructs a new instance of `LinkedList` that holds all of the elements contained in the supplied `collection` argument.

Method Summary
public void	add(int location, E object) Inserts the specified object into this LinkedList at the specified location.
public boolean	add(E object) Adds the specified object at the end of this LinkedList.
public boolean	addAll(int location, Collection<? extends E> collection) Inserts the objects in the specified Collection at the specified location in this LinkedList.
public boolean	addAll(Collection<? extends E> collection) Adds the objects in the specified Collection to this LinkedList.
public void	addFirst(E object) Adds the specified object at the beginning of this LinkedList.
public void	addLast(E object) Adds the specified object at the end of this LinkedList.
public void	clear() Removes all elements from this LinkedList, leaving it empty.
public Object	clone() Answers a new LinkedList with the same elements and size as this LinkedList.
public boolean	contains(Object object) Searches this LinkedList for the specified object.
public E	element()
public E	get(int location)
public E	getFirst() Answers the first element in this LinkedList.
public E	getLast() Answers the last element in this LinkedList.
public int	indexOf(Object object) Searches this LinkedList for the specified object and returns the index of the first occurrence.
public int	lastIndexOf(Object object) Searches this LinkedList for the specified object and returns the index of the last occurrence.
public ListIterator<E>	listIterator(int location) Answers a ListIterator on the elements of this LinkedList.
public boolean	offer(E o)
public E	peek()
public E	poll()
public E	remove(int location) Removes the object at the specified location from this LinkedList.
public boolean	remove(Object object)
public E	remove()
public E	removeFirst() Removes the first object from this LinkedList.
public E	removeLast() Removes the last object from this LinkedList.
public E	set(int location, E object) Replaces the element at the specified location in this LinkedList with the specified object.
public int	size() Answers the number of elements in this LinkedList.
public Object[]	toArray() Answers a new array containing all elements contained in this LinkedList.
public T[]	toArray(T[] contents) Answers an array containing all elements contained in this LinkedList.

Field Detail

size
transient int size(Code)

voidLink
transient Link<E> voidLink(Code)

Constructor Detail

LinkedList
public LinkedList()(Code)
	Constructs a new empty instance of LinkedList.

LinkedList
public LinkedList(Collection<? extends E> collection)(Code)
	Constructs a new instance of `LinkedList` that holds all of the elements contained in the supplied `collection` argument. The order of the elements in this new `LinkedList` will be determined by the iteration order of `collection`. Parameters: collection - the collection of elements to add

Method Detail

add
public void add(int location, E object)(Code)
	Inserts the specified object into this LinkedList at the specified location. The object is inserted before any previous element at the specified location. If the location is equal to the size of this LinkedList, the object is added at the end. Parameters: location - the index at which to insert Parameters: object - the object to add exception: IndexOutOfBoundsException - when `location < 0 \|\| >= size()`

add
public boolean add(E object)(Code)
	Adds the specified object at the end of this LinkedList. Parameters: object - the object to add true

addAll
public boolean addAll(int location, Collection<? extends E> collection)(Code)
	Inserts the objects in the specified Collection at the specified location in this LinkedList. The objects are added in the order they are returned from the `Collection` iterator. Parameters: location - the index at which to insert Parameters: collection - the Collection of objects true if this LinkedList is modified, false otherwise exception: IndexOutOfBoundsException - when `location < 0 \|\| > size()`

addAll
public boolean addAll(Collection<? extends E> collection)(Code)
	Adds the objects in the specified Collection to this LinkedList. Parameters: collection - the Collection of objects true if this LinkedList is modified, false otherwise

addFirst
public void addFirst(E object)(Code)
	Adds the specified object at the beginning of this LinkedList. Parameters: object - the object to add

addLast
public void addLast(E object)(Code)
	Adds the specified object at the end of this LinkedList. Parameters: object - the object to add

clear
public void clear()(Code)
	Removes all elements from this LinkedList, leaving it empty. See Also: List.isEmpty See Also: LinkedList.size

clone
public Object clone()(Code)
	Answers a new LinkedList with the same elements and size as this LinkedList. a shallow copy of this LinkedList See Also: java.lang.Cloneable

contains
public boolean contains(Object object)(Code)
	Searches this LinkedList for the specified object. Parameters: object - the object to search for true if `object` is an element of this LinkedList,false otherwise

element
public E element()(Code)

get
public E get(int location)(Code)

getFirst
public E getFirst()(Code)
	Answers the first element in this LinkedList. the first element exception: NoSuchElementException - when this LinkedList is empty

getLast
public E getLast()(Code)
	Answers the last element in this LinkedList. the last element exception: NoSuchElementException - when this LinkedList is empty

indexOf
public int indexOf(Object object)(Code)
	Searches this LinkedList for the specified object and returns the index of the first occurrence. Parameters: object - the object to search for the index of the first occurrence of the object

lastIndexOf
public int lastIndexOf(Object object)(Code)
	Searches this LinkedList for the specified object and returns the index of the last occurrence. Parameters: object - the object to search for the index of the last occurrence of the object

listIterator
public ListIterator<E> listIterator(int location)(Code)
	Answers a ListIterator on the elements of this LinkedList. The elements are iterated in the same order that they occur in the LinkedList. The iteration starts at the specified location. Parameters: location - the index at which to start the iteration a ListIterator on the elements of this LinkedList exception: IndexOutOfBoundsException - when `location < 0 \|\| >= size()` See Also: ListIterator

offer
public boolean offer(E o)(Code)

peek
public E peek()(Code)

poll
public E poll()(Code)

remove
public E remove(int location)(Code)
	Removes the object at the specified location from this LinkedList. Parameters: location - the index of the object to remove the removed object exception: IndexOutOfBoundsException - when `location < 0 \|\| >= size()`

remove
public boolean remove(Object object)(Code)

remove
public E remove()(Code)

removeFirst
public E removeFirst()(Code)
	Removes the first object from this LinkedList. the removed object exception: NoSuchElementException - when this LinkedList is empty

removeLast
public E removeLast()(Code)
	Removes the last object from this LinkedList. the removed object exception: NoSuchElementException - when this LinkedList is empty

set
public E set(int location, E object)(Code)
	Replaces the element at the specified location in this LinkedList with the specified object. Parameters: location - the index at which to put the specified object Parameters: object - the object to add the previous element at the index exception: IndexOutOfBoundsException - when `location < 0 \|\| >= size()`

size
public int size()(Code)
	Answers the number of elements in this LinkedList. the number of elements in this LinkedList

toArray
public Object[] toArray()(Code)
	Answers a new array containing all elements contained in this LinkedList. an array of the elements from this LinkedList

toArray
public T[] toArray(T[] contents)(Code)
	Answers an array containing all elements contained in this LinkedList. If the specified array is large enough to hold the elements, the specified array is used, otherwise an array of the same type is created. If the specified array is used and is larger than this LinkedList, the array element following the collection elements is set to null. Parameters: contents - the array an array of the elements from this LinkedList exception: ArrayStoreException - when the type of an element in this LinkedList cannot bestored in the type of the specified array

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