Java集合接口:

Java集合接口:

Iterable:

Iterator iterator();
void forEach(Consumer action)
default Spliterator spliterator()

Collection:

int size();
boolean isEmpty();
boolean contains(Object o);
Iterator iterator();
Object[] toArray();
boolean add(E e);
boolean remove(Object o);
boolean containsAll(Collection c);
boolean addAll(Collection c);
boolean removeAll(Collection c);
void clear();
boolean equals(Object o);
int hashCode();

List:

int size();
boolean isEmpty();
boolean contains(Object o);
Iterator iterator();
Object[] toArray();
boolean add(E e);
boolean remove(Object o);
boolean containsAll(Collection c);
boolean addAll(Collection c);
boolean addAll(int index, Collection c);
boolean removeAll(Collection c);
void clear();
boolean equals(Object o);
int hashCode();

E get(int index);
E set(int index, E element);
void add(int index, E element);
E remove(int index);
int indexOf(Object o);
int lastIndexOf(Object o);
ListIterator listIterator();
ListIterator listIterator(int index);
List subList(int fromIndex, int toIndex);

Set:

int size();
boolean isEmpty();
boolean contains(Object o);
Iterator iterator();
Object[] toArray();
boolean add(E e);
boolean remove(Object o);
boolean containsAll(Collection c);
boolean addAll(Collection c);
boolean removeAll(Collection c);
void clear();
boolean equals(Object o);
int hashCode();

Map:

int size();
boolean isEmpty();
boolean containsKey(Object key);
boolean containsValue(Object value);
V get(Object key);
V put(K key, V value);
V remove(Object key);
void putAll(Map m);
void clear();
Set keySet();
Collection values();
Set> entrySet();
boolean equals(Object o);
int hashCode();
void forEach(BiConsumer action)

Queue:

boolean add(E e);
boolean offer(E e);
E remove();
E poll();
E element();
E peek();

Deque:

void addFirst(E e);
void addLast(E e);
boolean offerFirst(E e);
boolean offerLast(E e);
E removeFirst();
E removeLast();
E pollFirst();
E pollLast();
E getFirst();
E getLast();
E peekFirst();
E peekLast();
boolean add(E e);
boolean offer(E e);
E remove();
E poll();
E element();
E peek();
void push(E e);
E pop();
boolean remove(Object o);
boolean contains(Object o);
public int size();
Iterator iterator();

Iterator:

boolean hasNext();
E next();
default void remove()
default void forEachRemaining(Consumer action);

集合类:

LinkedList:

implements List, Deque

Stack:

extends Vector

Vector:

extends AbstractList
implements List

ArrayList:

implements List

HashMap:

extends AbstractMap
implements Map