数组队列和循环队列的区别

package com.practice;

import java.util.Random;

public class Main {

    //测试使用queue运行opCount个enqueue和dequeue操作所需要的时间,单位:秒
    private static double testQueue(Queue<Integer> queue, int opCount){

        long startTime = System.nanoTime();

        Random random = new Random();
        for (int i = 0; i < opCount; i++) {
            queue.enqueue(random.nextInt(Integer.MAX_VALUE));
        }
        for (int i = 0; i < opCount; i++) {
            queue.dequeue();
        }
        long endTime = System.nanoTime();

        return (endTime - startTime) / 1000000000.0;
    }

    public static void main(String[] args) {

        int opCount = 100000;

        ArrayQueue<Integer> arrayQueue = new ArrayQueue<>();
        double time1 = testQueue(arrayQueue,opCount);
        System.out.println("AyyayQueue , time :" + time1 + "s");

        LoopQueue<Integer> loopQueue = new LoopQueue<>();
        double time2 = testQueue(loopQueue,opCount);
        System.out.println("LoopQueue , time :" + time2 + "s");
    }
}

运行结果:

AyyayQueue , time :6.9565154s
LoopQueue , time :0.0176564s