priorityqueue poll
// Java code to illustrate poll()
// poll() is basically a pop method that pops the least prioritized element.
import java.util.*;
public class PriorityQueueDemo {
public static void main(String args[])
{
// Creating an empty PriorityQueue
PriorityQueue<String> queue = new PriorityQueue<String>();
// Use add() method to add elements into the Queue
queue.add("Welcome");
queue.add("To");
queue.add("Geeks");
queue.add("For");
queue.add("Geeks");
// Displaying the PriorityQueue
System.out.println("Initial PriorityQueue: " + queue);
// Fetching and removing the element at the head of the queue
System.out.println("The element at the head of the"
+ " queue is: " + queue.poll());
// Displaying the Queue after the Operation
System.out.println("Final PriorityQueue: " + queue);
}
}