boolean
|
add(E e)
Ensures that this collection contains the specified element (optional
operation).
This implementation always throws an
UnsupportedOperationException.
|
boolean
|
addAll(Collection<? extends E> c)
Adds all of the elements in the specified collection to this collection
(optional operation).
This implementation iterates over the specified collection, and adds
each object returned by the iterator to this collection, in turn.
|
void
|
clear()
Removes all of the elements from this collection (optional operation).
This implementation iterates over this collection, removing each
element using the Iterator.remove operation.
|
boolean
|
contains(Object o)
Returns true if this collection contains the specified element.
This implementation iterates over the elements in the collection,
checking each element in turn for equality with the specified element.
|
boolean
|
containsAll(Collection<?> c)
Returns true if this collection contains all of the elements
in the specified collection.
This implementation iterates over the specified collection,
checking each element returned by the iterator in turn to see
if it's contained in this collection.
|
boolean
|
isEmpty()
Returns true if this collection contains no elements.
This implementation returns size() == 0.
|
abstract
Iterator<E>
|
iterator()
Returns an iterator over the elements contained in this collection.
|
boolean
|
remove(Object o)
Removes a single instance of the specified element from this
collection, if it is present (optional operation).
This implementation iterates over the collection looking for the
specified element.
|
boolean
|
removeAll(Collection<?> c)
Removes all of this collection's elements that are also contained in the
specified collection (optional operation).
This implementation iterates over this collection, checking each
element returned by the iterator in turn to see if it's contained
in the specified collection.
|
boolean
|
retainAll(Collection<?> c)
Retains only the elements in this collection that are contained in the
specified collection (optional operation).
This implementation iterates over this collection, checking each
element returned by the iterator in turn to see if it's contained
in the specified collection.
|
abstract
int
|
size()
Returns the number of elements in this collection.
|
<T>
T[]
|
toArray(T[] a)
Returns an array containing all of the elements in this collection;
the runtime type of the returned array is that of the specified array.
This implementation returns an array containing all the elements
returned by this collection's iterator in the same order, stored in
consecutive elements of the array, starting with index 0 .
|
Object[]
|
toArray()
Returns an array containing all of the elements in this collection.
This implementation returns an array containing all the elements
returned by this collection's iterator, in the same order, stored in
consecutive elements of the array, starting with index 0 .
|
String
|
toString()
Returns a string representation of this collection.
|