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How is the PriorityQueue implemented in Java?
4 min readApr 10, 2025
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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…