java.util

Interface Collection<E>

All Superinterfaces:

Iterable<E>

All Known Subinterfaces:

Deque<E>, List<E>, NavigableSet<E>, Queue<E>, Set<E>, SortedSet<E>

All Known Implementing Classes:

AbstractCollection, AbstractList, AbstractQueue, AbstractSequentialList, AbstractSet, ArrayDeque, ArrayList, HashSet, LinkedHashSet, LinkedList, PriorityQueue, Stack, TreeSet, Vector

public interface Collection<E>
extends Iterable<E>

Method Summary

Modifier and Type	Method and Description
boolean	add(E object)
boolean	addAll(Collection<? extends E> collection)
void	clear()
boolean	contains(Object object)
boolean	containsAll(Collection<?> collection)
boolean	equals(Object object)
int	hashCode()
boolean	isEmpty()
Iterator<E>	iterator()
boolean	remove(Object object)
boolean	removeAll(Collection<?> collection)
default boolean	removeIf(Predicate<? super E> filter)
boolean	retainAll(Collection<?> collection)
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] array)

Methods inherited from interface java.lang.Iterable

forEach

Method Detail

add

boolean add(E object)

addAll

boolean addAll(Collection<? extends E> collection)

clear

void clear()

contains

boolean contains(Object object)

containsAll

boolean containsAll(Collection<?> collection)

equals

boolean equals(Object object)

Overrides:

equals in class Object

hashCode

int hashCode()

Overrides:

hashCode in class Object

isEmpty

boolean isEmpty()

iterator

Iterator<E> iterator()

Specified by:

iterator in interface Iterable<E>

remove

boolean remove(Object object)

removeAll

boolean removeAll(Collection<?> collection)

retainAll

boolean retainAll(Collection<?> collection)

size

int size()

toArray

Object[] toArray()

toArray

<T> T[] toArray(T[] array)

removeIf

default boolean removeIf(Predicate<? super E> filter)