java-priority-queue

41 posts

Last Updated: 11 August 2021

A PriorityQueue is used when the objects are supposed to be processed based on the priority. It is known that a Queue follows the First-In-F...read more

Java

Java-Collections

java-priority-queue

Dijkstra's shortest path algorithm in Java using PriorityQueue

Last Updated: 13 October 2022

Dijkstra’s algorithm is very similar to Prim’s algorithm for minimum spanning tree. Like Prim’s MST, we generate a SPT (shortest path ...read more

Last Updated: 29 March 2023

A Min-Heap is a complete binary tree in which the value in each internal node is smaller than or equal to the values in the children of that ...read more

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Max Heap in Java

Last Updated: 08 February 2023

A max-heap is a complete binary tree in which the value in each internal node is greater than or equal to the values in the children of that...read more

PriorityQueue comparator() Method in Java

Last Updated: 20 June 2021

The java.util.PriorityQueue.comparator() method shares an important function of setting and returning the comparator that can be used to ord ...read more

PriorityQueue toArray() Method in Java

Last Updated: 10 December 2018

The java.util.PriorityQueue.toArray() method in Java is used to form an array of the same elements as that of the Priority Queue. Basica ...read more

PriorityQueue add() Method in Java

Last Updated: 09 August 2019

The Java.util.PriorityQueue.add() method in Java is used to add a specific element into a PriorityQueue. This method internally just calls t ...read more

PriorityQueue peek() Method in Java

Last Updated: 10 December 2018

The java.util.PriorityQueue.peek() method in Java is used to retrieve or fetch the first element of the Queue or the element present at the ...read more

PriorityQueue iterator() Method in Java

Last Updated: 10 December 2018

The Java.util.PriorityQueue.iterator() method is used to return an iterator of the same elements as the Priority Queue. The elements are ret ...read more

PriorityQueue offer() Method in Java

Last Updated: 10 December 2018

The java.util.PriorityQueue.offer() method is used to insert a particular element into the Priority Queue. It acts similar to the add() meth ...read more

PriorityQueue contains() Method in Java

Last Updated: 10 December 2018

The Java.util.PriorityQueue.contains() method is used to check whether a specific element is present in the PriorityQueue or not. So basical ...read more

PriorityQueue poll() Method in Java

Last Updated: 10 December 2018

The java.util.PriorityQueue.poll() method in Java is used to retrieve or fetch and remove the first element of the Queue or the element pres ...read more

PriorityQueue remove() Method in Java

Last Updated: 14 December 2021

The remove() method of PriorityQueue class of java.util package is used to remove a particular element from a PriorityQueue. As we all know ...read more

Implement PriorityQueue through Comparator in Java

Last Updated: 05 August 2022

Prerequisite : Priority Queue, Comparator Priority Queue is like a regular queue, but each element has a "priority" associated with it. In a ...read more

Java

priority-queue

java-priority-queue

PriorityQueue in Java

Last Updated: 10 April 2023

A PriorityQueue is used when the objects are supposed to be processed based on the priority. It is known that a Queue follows the First-In-F...read more

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