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

Example usage for Java java.util Queue fields, constructors, methods, implement or subclass

Introduction

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

The text is from its open source code.

Subclass

java.util.Queue has subclasses.
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Implementation

java.util.Queue has the following implementations.
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Method

boolean	add(E e) Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions, returning true upon success and throwing an IllegalStateException if no space is currently available.
boolean	addAll(Collection c) Adds all of the elements in the specified collection to this collection (optional operation).
void	clear() Removes all of the elements from this collection (optional operation).
boolean	contains(Object o) Returns true if this collection contains the specified element.
E	element() Retrieves, but does not remove, the head of this queue.
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.
boolean	isEmpty() Returns true if this collection contains no elements.
Iterator	iterator() Returns an iterator over the elements in this collection.
boolean	offer(E e) Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions.
E	peek() Retrieves, but does not remove, the head of this queue, or returns null if this queue is empty.
E	poll() Retrieves and removes the head of this queue, or returns null if this queue is empty.
E	remove() Retrieves and removes the head of this queue.
boolean	remove(Object o) Removes a single instance of the specified element from this collection, if it is present (optional operation).
boolean	removeAll(Collection c) Removes all of this collection's elements that are also contained in the specified collection (optional operation).
int	size() Returns the number of elements in this collection.
Stream	stream() Returns a sequential Stream with this collection as its source.
T[]	toArray(T[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
String	toString() Returns a string representation of the object.