[20-05-23][Thinking in Java 39]Java Container 11 - PriorityQueue

 1 package test_20_2;
 2 
 3 import java.util.PriorityQueue;
 4 
 5 public class PriorityQueueTest {
 6 
 7     public static void main(String[] args) {
 8         
 9         PriorityQueue<Double> priorityQueue = new PriorityQueue<Double>();
10         
11         for (int i = 0; i < 10; i++) {
12             double num = Math.random();
13             priorityQueue.offer(num);
14         }
15         int len = priorityQueue.size();
16         
17         for (int i = 0; i < len; i++) {
18             System.out.println(priorityQueue.poll());
19         }
20     }
21 }