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what is Priority Queue, its types, operations, Algorithms, applications and implementation in Java.

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Priority Queue  Priority Queue: The Priority Queue class is part of the java.util package and provides an efficient way to manage a collection of elements where each element has a priority. ·        Each element is inserted or deleted on the basis priority. ·        Higher priority >Lower priority ·        Same priority for [FCFS basis] (FCFS  stands for ....  First come First Serve )   Types of Priority Queue: Here’s some types of priority queue: 1.       Ascending order Priority Queue 2.       Descending order Priority Queue     Here are some details of the Priority Queue. Characteristics: Ø   Ordering : Elements are ordered based on their natural ordering (if they implement Comparable) or by a Comparator provided at queue construction time.   Ø   Heap Implementation : Internally, Priority Queue is implemented as a binary heap, which ensures that the element with the highest priority is always at the head of the queue. Key Operations: o    I