PriorityQueue clear() in Java

clear(): This method is available in java.util.PriorityQueue class of Java.

Syntax:

void java.util.PriorityQueue.clear()

This method removes all of the elements from this priority queue.

Note: The queue will be empty after this call returns.

Parameters: NA

Returns: NA

Exceptions: NA

Approach

Java

import java.util.PriorityQueue;

public class PriorityQueueclear {
    public static void main(String[] args) {

        PriorityQueue<Integer> priorityQueue = 
                    new PriorityQueue<Integer>();

        priorityQueue.add(12);
        priorityQueue.add(5);
        priorityQueue.add(10);
        priorityQueue.add(2);

        priorityQueue.clear();

        System.out.println(priorityQueue);

    }
}

Output:

[]