E - 元素类型public class ConcurrentHashSet<E> extends AbstractSet<E> implements Serializable
ConcurrentHashMap实现的线程安全| Constructor and Description |
|---|
ConcurrentHashSet()
构造
触发因子为默认的0.75
|
ConcurrentHashSet(int initialCapacity)
构造
触发因子为默认的0.75 |
ConcurrentHashSet(int initialCapacity,
float loadFactor)
构造
|
ConcurrentHashSet(int initialCapacity,
float loadFactor,
int concurrencyLevel)
构造
|
ConcurrentHashSet(Iterable<E> iter)
从已有集合中构造
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| Modifier and Type | Method and Description |
|---|---|
boolean |
add(E e) |
void |
clear() |
boolean |
contains(Object o) |
boolean |
isEmpty() |
Iterator<E> |
iterator() |
boolean |
remove(Object o) |
int |
size() |
equals, hashCode, removeAlladdAll, containsAll, retainAll, toArray, toArray, toStringclone, finalize, getClass, notify, notifyAll, wait, wait, waitaddAll, containsAll, retainAll, spliterator, toArray, toArrayparallelStream, removeIf, streampublic ConcurrentHashSet()
public ConcurrentHashSet(int initialCapacity)
initialCapacity - 初始大小public ConcurrentHashSet(int initialCapacity,
float loadFactor)
initialCapacity - 初始大小loadFactor - 加载因子。此参数决定数据增长时触发的百分比public ConcurrentHashSet(int initialCapacity,
float loadFactor,
int concurrencyLevel)
initialCapacity - 初始大小loadFactor - 触发因子。此参数决定数据增长时触发的百分比concurrencyLevel - 线程并发度public int size()
size in interface Collection<E>size in interface Set<E>size in class AbstractCollection<E>public boolean isEmpty()
isEmpty in interface Collection<E>isEmpty in interface Set<E>isEmpty in class AbstractCollection<E>public boolean contains(Object o)
contains in interface Collection<E>contains in interface Set<E>contains in class AbstractCollection<E>public boolean add(E e)
add in interface Collection<E>add in interface Set<E>add in class AbstractCollection<E>public boolean remove(Object o)
remove in interface Collection<E>remove in interface Set<E>remove in class AbstractCollection<E>public void clear()
clear in interface Collection<E>clear in interface Set<E>clear in class AbstractCollection<E>Copyright © 2019. All rights reserved.