Java Collections - ArrayDeque.poll() Examples

[Last Updated: Nov 8, 2025]

Class:

java.util.ArrayDeque

Method:

public E poll()

Retrieves and removes the head of the queue represented by this deque.

This method is equivalent to pollFirst().

Examples

package com.logicbig.example.arraydeque;

import java.util.ArrayDeque;
import java.util.List;

public class PollExample {

    public static void main(String... args) {
        ArrayDeque<Integer> ad = new ArrayDeque<>(List.of(3, 8, 5, 7));
        System.out.println(ad);
        Integer element = ad.poll();
        System.out.println(element);
        System.out.println(ad);
    }
}

Output

[3, 8, 5, 7]
3
[8, 5, 7]

package com.logicbig.example.arraydeque;

import java.util.ArrayDeque;
import java.util.List;

public class PollExample2 {

    public static void main(String... args) {
        ArrayDeque<Integer> ad = new ArrayDeque<>(List.of(1));
        Integer element = ad.poll();
        System.out.println(element);
        element = ad.poll();
        System.out.println(element);
    }
}

Output

1
null

Java Collections - ArrayDeque.poll() Examples

Class:

Method:

Examples

Output

Output

See Also