Package com.landawn.abacus.util

Class ArrayHashSet<E>

java.lang.Object

com.landawn.abacus.util.ArrayHashSet<E>

Type Parameters:

E -

All Implemented Interfaces:

Iterable<E>, Collection<E>, Set<E>

Direct Known Subclasses:

LinkedArrayHashSet

public class ArrayHashSet<E>
extends Object
implements Set<E>

It's designed to supported primitive/object array. The elements in the array must not be modified after the array is added into the set.

Since:

0.8

Author:

Haiyang Li

Constructor Summary

Constructors

Constructor	Description
ArrayHashSet()
ArrayHashSet(int initialCapacity)
ArrayHashSet(Class<? extends Set> setType)
ArrayHashSet(Collection<? extends E> coll)

Method Summary

Modifier and Type	Method	Description
boolean	add(E e)
boolean	addAll(Collection<? extends E> c)	Adds the all.
void	clear()	Clear.
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
boolean	equals(Object obj)
int	hashCode()
boolean	isEmpty()	Checks if is empty.
Iterator<E>	iterator()
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)	Removes the all.
boolean	retainAll(Collection<?> c)
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] a)
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

spliterator

Constructor Details

ArrayHashSet

public ArrayHashSet()

ArrayHashSet

public ArrayHashSet(int initialCapacity)

Parameters:

initialCapacity -

ArrayHashSet

public ArrayHashSet(Class<? extends Set> setType)

Parameters:

setType -

ArrayHashSet

public ArrayHashSet(Collection<? extends E> coll)

Parameters:

coll -

Method Details

add

public boolean add(E e)

Specified by:

add in interface Collection<E>

Specified by:

add in interface Set<E>

Parameters:

e -

Returns:

addAll

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

Adds the all.

Specified by:

addAll in interface Collection<E>

Specified by:

addAll in interface Set<E>

Parameters:

c -

Returns:

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<E>

Specified by:

remove in interface Set<E>

Parameters:

o -

Returns:

removeAll

public boolean removeAll(Collection<?> c)

Removes the all.

Specified by:

removeAll in interface Collection<E>

Specified by:

removeAll in interface Set<E>

Parameters:

c -

Returns:

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<E>

Specified by:

retainAll in interface Set<E>

Parameters:

c -

Returns:

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<E>

Specified by:

contains in interface Set<E>

Parameters:

o -

Returns:

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<E>

Specified by:

containsAll in interface Set<E>

Parameters:

c -

Returns:

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Set<E>

Returns:

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<E>

Specified by:

toArray in interface Set<E>

Returns:

toArray

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

Specified by:

toArray in interface Collection<E>

Specified by:

toArray in interface Set<E>

Type Parameters:

T -

Parameters:

a -

Returns:

size

public int size()

Specified by:

size in interface Collection<E>

Specified by:

size in interface Set<E>

Returns:

isEmpty

public boolean isEmpty()

Checks if is empty.

Specified by:

isEmpty in interface Collection<E>

Specified by:

isEmpty in interface Set<E>

Returns:

true, if is empty

clear

public void clear()

Clear.

Specified by:

clear in interface Collection<E>

Specified by:

clear in interface Set<E>

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<E>

Specified by:

hashCode in interface Set<E>

Overrides:

hashCode in class Object

Returns:

equals

public boolean equals(Object obj)

Specified by:

equals in interface Collection<E>

Specified by:

equals in interface Set<E>

Overrides:

equals in class Object

Parameters:

obj -

Returns:

toString

public String toString()

Overrides:

toString in class Object

Returns: