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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.4.2
java.util
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Field Summary |
Fields inherited from class java.util.AbstractList |
modCount |
Constructor Summary | |
LinkedList()
Constructs an empty list. |
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LinkedList(Collection c)
Constructs a list containing the elements of the specified collection, in the order they are returned by the collection's iterator. |
Method Summary | |
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(Collection c)
Appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection's iterator. |
boolean |
addAll(int index,
Collection c)
Inserts all of the elements in the specified collection into this list, starting at the specified position. |
void |
addFirst(Object o)
Inserts the given element at the beginning of this list. |
void |
addLast(Object o)
Appends the given element to the end of this list. |
void |
clear()
Removes all of the elements from this list. |
Object |
clone()
Returns a shallow copy of this LinkedList. |
boolean |
contains(Object o)
Returns true if this list contains the specified element. |
Object |
get(int index)
Returns the element at the specified position in this list. |
Object |
getFirst()
Returns the first element in this list. |
Object |
getLast()
Returns the last element in this list. |
int |
indexOf(Object o)
Returns the index in this list of the first occurrence of the specified element, or -1 if the List does not contain this element. |
int |
lastIndexOf(Object o)
Returns the index in this list of the last occurrence of the specified element, or -1 if the list does not contain this element. |
ListIterator |
listIterator(int index)
Returns a list-iterator of the elements in this list (in proper sequence), starting at the specified position in the list. |
Object |
remove(int index)
Removes the element at the specified position in this list. |
boolean |
remove(Object o)
Removes the first occurrence of the specified element in this list. |
Object |
removeFirst()
Removes and returns the first element from this list. |
Object |
removeLast()
Removes and returns the last element from this list. |
Object |
set(int index,
Object element)
Replaces the element at the specified position in this list with the specified element. |
int |
size()
Returns the number of elements in this list. |
Object[] |
toArray()
Returns an array containing all of the elements in this list in the correct order. |
Object[] |
toArray(Object[] a)
Returns an array containing all of the elements in this list in the correct order; the runtime type of the returned array is that of the specified array. |
Methods inherited from class java.util.AbstractSequentialList |
iterator |
Methods inherited from class java.util.AbstractList |
equals, hashCode, listIterator, removeRange, subList |
Methods inherited from class java.util.AbstractCollection |
containsAll, isEmpty, removeAll, retainAll, toString |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.List |
containsAll, equals, hashCode, isEmpty, iterator, listIterator, removeAll, retainAll, subList |
Constructor Detail |
public LinkedList()
public LinkedList(Collection c)
c
- the collection whose elements are to be placed into this list.
NullPointerException
- if the specified collection is null.Method Detail |
public Object getFirst()
NoSuchElementException
- if this list is empty.public Object getLast()
NoSuchElementException
- if this list is empty.public Object removeFirst()
NoSuchElementException
- if this list is empty.public Object removeLast()
NoSuchElementException
- if this list is empty.public void addFirst(Object o)
o
- the element to be inserted at the beginning of this list.public void addLast(Object o)
o
- the element to be inserted at the end of this list.public boolean contains(Object o)
contains
in interface List
contains
in class AbstractCollection
o
- element whose presence in this list is to be tested.
public int size()
size
in interface List
size
in class AbstractCollection
public boolean add(Object o)
add
in interface List
add
in class AbstractList
o
- element to be appended to this list.
public boolean remove(Object o)
remove
in interface List
remove
in class AbstractCollection
o
- element to be removed from this list, if present.
public boolean addAll(Collection c)
addAll
in interface List
addAll
in class AbstractCollection
c
- the elements to be inserted into this list.
NullPointerException
- if the specified collection is null.AbstractCollection.add(Object)
public boolean addAll(int index, Collection c)
addAll
in interface List
addAll
in class AbstractSequentialList
index
- index at which to insert first element
from the specified collection.c
- elements to be inserted into this list.
IndexOutOfBoundsException
- if the specified index is out of
range (index < 0 || index > size()).
NullPointerException
- if the specified collection is null.public void clear()
clear
in interface List
clear
in class AbstractList
public Object get(int index)
get
in interface List
get
in class AbstractSequentialList
index
- index of element to return.
IndexOutOfBoundsException
- if the specified index is is out of
range (index < 0 || index >= size()).public Object set(int index, Object element)
set
in interface List
set
in class AbstractSequentialList
index
- index of element to replace.element
- element to be stored at the specified position.
IndexOutOfBoundsException
- if the specified index is out of
range (index < 0 || index >= size()).public void add(int index, Object element)
add
in interface List
add
in class AbstractSequentialList
index
- index at which the specified element is to be inserted.element
- element to be inserted.
IndexOutOfBoundsException
- if the specified index is out of
range (index < 0 || index > size()).public Object remove(int index)
remove
in interface List
remove
in class AbstractSequentialList
index
- the index of the element to removed.
IndexOutOfBoundsException
- if the specified index is out of
range (index < 0 || index >= size()).public int indexOf(Object o)
indexOf
in interface List
indexOf
in class AbstractList
o
- element to search for.
public int lastIndexOf(Object o)
lastIndexOf
in interface List
lastIndexOf
in class AbstractList
o
- element to search for.
public ListIterator listIterator(int index)
The list-iterator is fail-fast: if the list is structurally modified at any time after the Iterator is created, in any way except through the list-iterator's own remove or add methods, the list-iterator will throw a ConcurrentModificationException. Thus, in the face of concurrent modification, the iterator fails quickly and cleanly, rather than risking arbitrary, non-deterministic behavior at an undetermined time in the future.
listIterator
in interface List
listIterator
in class AbstractSequentialList
index
- index of first element to be returned from the
list-iterator (by a call to next).
IndexOutOfBoundsException
- if index is out of range
(index < 0 || index > size()).List.listIterator(int)
public Object clone()
Cloneable
public Object[] toArray()
toArray
in interface List
toArray
in class AbstractCollection
public Object[] toArray(Object[] a)
If the list fits in the specified array with room to spare (i.e., the array has more elements than the list), the element in the array immediately following the end of the collection is set to null. This is useful in determining the length of the list only if the caller knows that the list does not contain any null elements.
toArray
in interface List
toArray
in class AbstractCollection
a
- the array into which the elements of the list are to
be stored, if it is big enough; otherwise, a new array of the
same runtime type is allocated for this purpose.
ArrayStoreException
- if the runtime type of a is not a
supertype of the runtime type of every element in this list.
NullPointerException
- if the specified array is null.