JavaArithmetic/src/datastructure/queue/test/Main.java at master · sqlcyi2008/JavaArithmetic · GitHub

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package datastructure.queue.test;

import java.util.Random;

public class Main {

// 测试使用q运行opCount个enqueueu和dequeue操作所需要的时间，单位：秒

private static double testQueue(Queue<Integer> q, int opCount){

long startTime = System.nanoTime();

Random random = new Random();

for(int i = 0 ; i < opCount ; i ++)

q.enqueue(random.nextInt(Integer.MAX_VALUE));

for(int i = 0 ; i < opCount ; i ++)

q.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("ArrayQueue, time: " + time1 + " s");

LoopQueue<Integer> loopQueue = new LoopQueue<>();

double time2 = testQueue(loopQueue, opCount);

System.out.println("LoopQueue, time: " + time2 + " s");

}