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How is the PriorityQueue implemented in Java?

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Question

How is the PriorityQueue implemented in Java?

What is a Queue?

  • A queue is a linear data structure that works on the FIFO (First-In-First-Out) principle.
  • Think of people standing in line — whoever comes first gets served first.
  • In Java, Queue is an interface in the java.util package. It supports operations like: add , remove and view elements.
  • Those operations in Queue are called as add() / offer() — add elements, remove() / poll() — remove elements, peek() — view the front of the queue.
Queue<String> queue = new LinkedList<>();
queue.add("Pavan");
queue.add("Sai");
System.out.println(queue.remove()); // Pavan

What is a PriorityQueue?

  • A PriorityQueue is a special type of queue where elements are processed based on their
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Thirupathi Pavan Sai
Thirupathi Pavan Sai

Written by Thirupathi Pavan Sai

Software Engineer | 1X Azure certified | Backend | Cyber Security Enthusiast | DevOps Enthusiast

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