java.util

Class AbstractCollection<E>

java.lang.Object

java.util.AbstractCollection<E>

Type Parameters:

E - the element type.

All Implemented Interfaces:

Iterable<E>, Collection<E>

Direct Known Subclasses:

AbstractList, AbstractQueue, AbstractSet, ArrayDeque

public abstract class AbstractCollection<E>
extends Object
implements Collection<E>

Skeletal implementation of the Collection interface. [Sun docs]

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractCollection()

Method Summary

Modifier and Type	Method and Description
boolean	add(E o)
boolean	addAll(Collection<? extends E> c)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
boolean	isEmpty()
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
Object[]	toArray()
<T> T[]	toArray(T[] a)
String	toString()

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode

Methods inherited from interface java.util.Collection

parallelStream, removeIf, size, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach, iterator

Constructor Detail

AbstractCollection

protected AbstractCollection()

Method Detail

add

public boolean add(E o)

Specified by:

add in interface Collection<E>

addAll

public boolean addAll(Collection<? extends E> c)

Specified by:

addAll in interface Collection<E>

clear

public void clear()

Specified by:

clear in interface Collection<E>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<E>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<E>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<E>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<E>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<E>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<E>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<E>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<E>

toString

public String toString()

Overrides:

toString in class Object