Java Collections - PriorityQueue.addAll() Examples

[Last Updated: Nov 8, 2025]

Class:

java.util.PriorityQueue

Method:

public boolean addAll(Collection<? extends E> c)

Adds all of the elements in the specified collection to this queue.

This method is inherited from AbstractQueue.

Examples

package com.logicbig.example.priorityqueue;

import java.util.ArrayList;
import java.util.List;
import java.util.PriorityQueue;

public class AddAllExample {

    public static void main(String... args) {
        PriorityQueue<String> pq = new PriorityQueue<>();
        pq.add("a");
        pq.add("c");

        List<String> list = new ArrayList<>();
        pq.add("d");
        pq.add("b");
        pq.addAll(list);

        System.out.println(pq);
        pq.iterator().forEachRemaining(System.out::println);
    }
}

Output

[a, b, d, c]
a
b
d
c

Java Collections - PriorityQueue.addAll() Examples

Class:

Method:

Examples

Output

See Also