java多线程 包子_Java中多线程模拟包子铺造和 吃货吃包子

包子铺:

import java.util.ArrayList;

public class BaoZiPu implements Runnable {

//定义变量:包子集合

ArrayList baoZi;

public BaoZiPu(ArrayList baoZi) {//将包子集合作为构造方法的形参

this.baoZi = baoZi;

}

@Override

public void run() {

int number =0;

while (true) {//模拟不停的造包子

synchronized (baoZi) {//同步代码块,所对象为包子集合

if (baoZi.size() > 0) {//有包子

try {

baoZi.wait();//无限等待

} catch (InterruptedException e) {

e.printStackTrace();

}

}

baoZi.add("包子" + number);

System.out.println(Thread.currentThread().getName()+"包子铺造包子"+number);

try {

Thread.sleep(500);//模拟造包子时间

} catch (InterruptedException e) {

e.printStackTrace();

}

baoZi.notifyAll();//唤醒别的同一个所对象的线程

}

number++;

if (number == 20) {

return;//做20个包子就下班

}

}

}

}

吃货类:

import java.util.ArrayList;

public class ChiHuo implements Runnable {

//定义变量:包子集合

ArrayList baoZi;

public ChiHuo(ArrayList baoZi) {//将包子集合作为构造方法的形参

this.baoZi = baoZi;

}

@Override

public void run() {

int number =0;

while (true) {//模拟不停的吃包子

synchronized (baoZi) {//同步代码块,所对象为包子集合

if (baoZi.size() == 0) {//没有包子

try {

baoZi.wait();//无限等待

} catch (InterruptedException e) {

e.printStackTrace();

}

}

String str = baoZi.remove(0);

System.out.println(Thread.currentThread().getName()+"吃货吃包子: "+str);

try {

Thread.sleep(500);//模拟吃包子时间

} catch (InterruptedException e) {

e.printStackTrace();

}

baoZi.notifyAll();//唤醒别的同一个所对象的线程

}

number++;

if (number == 20) {

return;//吃20个包子就下班

}

}

}

}

测试类:

import java.util.ArrayList;

import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

public class Test01 {

public static void main(String[] args) {

//在线程中模拟吃包子和包子铺做包子

//定义包子集合

ArrayList baOZi = new ArrayList<>();

BaoZiPu bp = new BaoZiPu(baOZi);//创建包子铺对象

ChiHuo ch = new ChiHuo(baOZi);//创建吃货对象

ExecutorService pool = Executors.newFixedThreadPool(4);//创建有4个线程的线程池对象

pool.submit(bp);//让线程池执行包子铺线程

pool.submit(ch);//让线程池执行吃货线程

pool.submit(bp);//让线程池执行包子铺线程

pool.submit(ch);//让线程池执行吃货线程

}

}

控制台打印效果:

标签：包子铺,ArrayList,吃货,number,public,baoZi,线程,多线程,包子

来源： https://blog.youkuaiyun.com/xilin6664/article/details/88926029