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

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

Introduction

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

The text is from its open source code.

Subclass

java.util.PriorityQueue has subclasses.
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Field

int	size The number of elements in the priority queue.
Comparator	comparator The comparator, or null if priority queue uses elements' natural ordering.

Constructor

	PriorityQueue(int initialCapacity) Creates a PriorityQueue with the specified initial capacity that orders its elements according to their Comparable natural ordering .
	PriorityQueue(Comparator comparator) Creates a PriorityQueue with the default initial capacity and whose elements are ordered according to the specified comparator.
	PriorityQueue(Collection c) Creates a PriorityQueue containing the elements in the specified collection.
	PriorityQueue(PriorityQueue c) Creates a PriorityQueue containing the elements in the specified priority queue.
	PriorityQueue(SortedSet c) Creates a PriorityQueue containing the elements in the specified sorted set.
	PriorityQueue() Creates a PriorityQueue with the default initial capacity (11) that orders its elements according to their Comparable natural ordering .
	PriorityQueue(int initialCapacity, Comparator comparator) Creates a PriorityQueue with the specified initial capacity that orders its elements according to the specified comparator.

Method

boolean	add(E e) Inserts the specified element into this priority queue.
void	clear() Removes all of the elements from this priority queue.
boolean	contains(Object o) Returns true if this queue contains the specified element.
Iterator	iterator() Returns an iterator over the elements in this queue.
boolean	offer(E e) Inserts the specified element into this priority queue.
E	peek()
E	poll()
boolean	remove(Object o) Removes a single instance of the specified element from this queue, if it is present.
boolean	removeIf(Predicate filter)
Object[]	toArray() Returns an array containing all of the elements in this queue.
T[]	toArray(T[] a) Returns an array containing all of the elements in this queue; the runtime type of the returned array is that of the specified array.