Java java.util Set fields, constructors, methods, implement or subclass

Introduction

In this page you can find the methods, fields and constructors for java.util Set.

The text is from its open source code.

Implementation

java.util.Set has the following implementations.
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Constructor

	Set

Method

boolean	add(E e) Adds the specified element to this set if it is not already present (optional operation).
boolean	addAll(Collection c) Adds all of the elements in the specified collection to this set if they're not already present (optional operation).
void	clear() Removes all of the elements from this set (optional operation).
boolean	contains(Object o) Returns true if this set contains the specified element.
boolean	containsAll(Collection c) Returns true if this set contains all of the elements of the specified collection.
boolean	equals(Object o) Compares the specified object with this set for equality.
void	forEach(Consumer action) Performs the given action for each element of the Iterable until all elements have been processed or the action throws an exception.
Class	getClass() Returns the runtime class of this Object .
int	hashCode() Returns the hash code value for this set.
boolean	isEmpty() Returns true if this set contains no elements.
Iterator	iterator() Returns an iterator over the elements in this set.
void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
Stream	parallelStream() Returns a possibly parallel Stream with this collection as its source.
boolean	remove(Object o) Removes the specified element from this set if it is present (optional operation).
boolean	removeAll(Collection c) Removes from this set all of its elements that are contained in the specified collection (optional operation).
boolean	removeIf(Predicate filter) Removes all of the elements of this collection that satisfy the given predicate.
boolean	retainAll(Collection c) Retains only the elements in this set that are contained in the specified collection (optional operation).
int	size() Returns the number of elements in this set (its cardinality).
Spliterator	spliterator() Creates a Spliterator over the elements in this set.
Stream	stream() Returns a sequential Stream with this collection as its source.
Object[]	toArray() Returns an array containing all of the elements in this set.
T[]	toArray(T[] a) Returns an array containing all of the elements in this set; the runtime type of the returned array is that of the specified array.
String	toString() Returns a string representation of the object.
void	wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
void	wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.