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Java Collections - PriorityQueue.contains() Examples

[Last Updated: Nov 8, 2025]

Java Collections Java Java API

Class:

java.util.PriorityQueue

Method:

public boolean contains(Object o)

Returns true if and only if this queue contains at least one element e such that o.equals(e)

Examples

package com.logicbig.example.priorityqueue;

import java.util.PriorityQueue;

public class ContainsExample {

    public static void main(String... args) {
        PriorityQueue<String> pq = new PriorityQueue<>();
        pq.add("one");
        pq.add("two");
        boolean b = pq.contains("two");
        System.out.println(b);
    }
}

Output

true

See Also