笔试，猴子吃香蕉，多线程写法

package demo;import java.util.concurrent.CountDownLatch;/*** @description: 猴子吃香蕉* @author: wxm* @create: 2023-10-23 14:01**/
public class Main {public static void main(String[] args) throws InterruptedException {Monkey[] m = new Monkey[3];Resource r = new Resource();for (int i = 0; i < 3; i++) {m[i] = new Monkey(r);}for (int i = 0; i < 3; i++) {int j = i;new Thread(()->m[j].add()).start();}r.latch.await();for (int i = 0; i < 3; i++) {System.out.println(i +" " + m[i].count);}}}class MyThread extends Thread{Monkey monkey;public MyThread(Monkey monkey){this.monkey = monkey;}@Overridepublic void run(){monkey.add();}
}class Monkey{Resource resource;int count;public Monkey(Resource resource){this.resource = resource;this.count = 0;}public void add(){try {while (true){if(resource.consumer()) count++;else break;}}finally {resource.latch.countDown();}}}class Resource{private volatile int num = 10000;public CountDownLatch latch = new CountDownLatch(3);public synchronized boolean consumer(){if (num == 0) return false;num--;return true;}}