Java Tutorial #51 - Java PriorityQueue Class with Examples (Collections)

Java Tutorial #51 - Java PriorityQueue Class with Examples (Collections)
In this video by Programming for Beginners we will learn Java PriorityQueue Class with Examples, using Java Tutorial videos.

The PriorityQueue class provides the functionality of the heap data structure.
Unlike normal queues, priority queue elements are retrieved in sorted order.

Suppose, we want to retrieve elements in the ascending order. In this case, the head of the priority queue will be the smallest element. Once this element is retrieved, the next smallest element will be the head of the queue.

NOTE: The elements of a priority queue may not be sorted. However, elements are always retrieved in sorted order.

PriorityQueue Methods:
add() method
offer() method
peek() method
remove() method
poll() method

Using Iterator for PriorityQueue objects.

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