자바 PriorityQueue

1 개요

자바 Class PriorityQueue

java.util.PriorityQueue

import java.util.PriorityQueue;
public class MyClass {
    public static void main(String args[]) {
        PriorityQueue<Integer> pq = new PriorityQueue<Integer>();
        pq.add(3);
        pq.add(1);
        pq.add(4);
        pq.add(2);
        System.out.println( pq.toString() );
        // [1, 2, 4, 3]
    }
}

import java.util.PriorityQueue;
import java.util.Collections;
public class MyClass {
    public static void main(String args[]) {
        PriorityQueue<Integer> pq = new PriorityQueue<Integer>(Collections.reverseOrder());
        pq.add(3);
        pq.add(1);
        pq.add(4);
        pq.add(2);
        System.out.println( pq.toString() );
        // [4, 2, 3, 1]
    }
}

2 같이 보기

• 자바 Queue
• 우선순위 큐

3 참고

• https://docs.oracle.com/javase/8/docs/api/java/util/PriorityQueue.html