java 5并发中的阻塞队列ArrayBlockingQueue的使用以及案例实现
演示一个阻塞队列的使用
public class BlockingQueueTest
{
public static void main(String[] args)
{
//创建一个包含三个元素的阻塞队列
final BlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(3);
for (int i = 0; i < 2; i++)
{
new Thread(new Runnable()
{
@Override
public void run()
{
while(true){
try
{
Thread.sleep(1000);
System.out.println("线程"+Thread.currentThread().getName()+" 准备放数据了");
queue.put(new Random().nextInt(100));
System.out.println("线程"+Thread.currentThread().getName()+" 已经放完数据了,目前队列有"+queue.size()+"个数据");
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
}).start(); } new Thread(new Runnable()
{
@Override
public void run()
{
while(true){
try
{
//将此处的睡眠时间改为200和2000 分别观察结果
Thread.sleep(2000);
System.out.println("线程"+Thread.currentThread().getName()+" 准备取数据了");
queue.take();
System.out.println("线程"+Thread.currentThread().getName()+" 已经取完数据了,目前队列有"+queue.size()+"个数据");
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
}).start();
}
}
部分运行结果如下，
线程Thread-1 准备放数据了
线程Thread-0 准备放数据了
线程Thread-1 已经放完数据了,目前队列有1个数据
线程Thread-0 已经放完数据了,目前队列有2个数据
线程Thread-2 准备取数据了
线程Thread-2 已经取完数据了,目前队列有1个数据
线程Thread-1 准备放数据了
线程Thread-0 准备放数据了
线程Thread-1 已经放完数据了,目前队列有2个数据
线程Thread-0 已经放完数据了,目前队列有3个数据
线程Thread-1 准备放数据了
线程Thread-0 准备放数据了
线程Thread-2 准备取数据了
线程Thread-2 已经取完数据了,目前队列有2个数据
线程Thread-1 已经放完数据了,目前队列有3个数据
线程Thread-1 准备放数据了
线程Thread-2 准备取数据了
线程Thread-2 已经取完数据了,目前队列有2个数据
线程Thread-0 已经放完数据了,目前队列有3个数据
线程Thread-0 准备放数据了
线程Thread-2 准备取数据了
线程Thread-2 已经取完数据了,目前队列有2个数据
线程Thread-1 已经放完数据了,目前队列有3个数据
线程Thread-1 准备放数据了
线程Thread-2 准备取数据了
线程Thread-2 已经取完数据了,目前队列有2个数据
线程Thread-0 已经放完数据了,目前队列有3个数据
线程Thread-0 准备放数据了
* 面试题
* 需求:
* 子线程循环输出10次
* 接着主线程循环输出100次
* 接着又回到子线程执行10次
* 再回到主线程执行100次
* 如此往复50次 请写出程序
* 此处使用阻塞队列来实现
public class BlockingQueueCommunication
{
public static void main(String[] args) throws InterruptedException
{
final Core core = new Core();
//子线程
new Thread(
new Runnable()
{
@Override
public void run()
{
for (int i = 1; i <= 50;i++)
{
core.SubMethod(i);
}
}
}
).start(); //主线程
for (int i = 1; i <= 50; i++)
{
core.MainMethod(i);
}
} /**
* 创建一个静态的类
* 将核心的业务逻辑的方法放在这里
* 体现了高内聚的特点
* @author huang.jf
*
*/
static class Core{
//创建两个阻塞队列 都只能装一个元素
//实现的效果就是q1存，q2取,q2存,q1取
//用两个具有一个空间的队列来实现同步通知的功能
private BlockingQueue<Integer> queue1 = new ArrayBlockingQueue<Integer>(1);
private BlockingQueue<Integer> queue2 = new ArrayBlockingQueue<Integer>(1); //匿名构造方法 也叫非静态代码块
//当创建对象时 该代码块先被执行
//保证初始化，在queue2队列中包含一个元素
{
try
{
queue2.put(1);
} catch (InterruptedException e)
{
e.printStackTrace();
}
} //子线程调用 循环输出10次
public void SubMethod(int j){
try
{
queue1.put(1);//向q1中存入一个值
} catch (InterruptedException e)
{
e.printStackTrace();
}
for (int i = 1; i <= 10; i++)
{
System.out.println("this is sub thread..."+i+"......."+j);
}
try
{
queue2.take();//取出q2中的一个值
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
//主线程调用循环输出一百次
public void MainMethod(int j){
try
{
queue2.put(1);//一开始queue2队列会被阻塞，因为初始化的时候已经有一个值
} catch (InterruptedException e)
{
e.printStackTrace();
}
for (int i = 1; i <= 100; i++)
{
System.out.println("this is main thread..."+i+"......"+j);
}
try
{
queue1.take();
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
}
部分运行结果如下:
this is sub thread...1.......49
this is sub thread...2.......49
this is sub thread...3.......49
this is sub thread...4.......49
this is sub thread...5.......49
this is sub thread...6.......49
this is sub thread...7.......49
this is sub thread...8.......49
this is sub thread...9.......49
this is sub thread...10.......49
this is main thread...1......49
this is main thread...2......49
this is main thread...3......49
this is main thread...4......49
this is main thread...5......49
this is main thread...6......49
this is main thread...7......49
this is main thread...8......49
this is main thread...9......49
this is main thread...10......49
this is main thread...11......49
this is main thread...12......49
this is main thread...13......49
this is main thread...14......49
this is main thread...15......49
this is main thread...16......49
this is main thread...17......49
this is main thread...18......49
this is main thread...19......49
this is main thread...20......49
this is main thread...21......49
this is main thread...22......49
this is main thread...23......49
this is main thread...24......49
this is main thread...25......49
this is main thread...26......49
this is main thread...27......49
this is main thread...28......49
this is main thread...29......49
this is main thread...30......49
this is main thread...31......49
this is main thread...32......49
this is main thread...33......49
this is main thread...34......49
this is main thread...35......49
this is main thread...36......49
this is main thread...37......49
this is main thread...38......49
this is main thread...39......49
this is main thread...40......49
this is main thread...41......49
this is main thread...42......49
this is main thread...43......49
this is main thread...44......49
this is main thread...45......49
this is main thread...46......49
this is main thread...47......49
this is main thread...48......49
this is main thread...49......49
this is main thread...50......49
this is main thread...51......49
this is main thread...52......49
this is main thread...53......49
this is main thread...54......49
this is main thread...55......49
this is main thread...56......49
this is main thread...57......49
this is main thread...58......49
this is main thread...59......49
this is main thread...60......49
this is main thread...61......49
this is main thread...62......49
this is main thread...63......49
this is main thread...64......49
this is main thread...65......49
this is main thread...66......49
this is main thread...67......49
this is main thread...68......49
this is main thread...69......49
this is main thread...70......49
this is main thread...71......49
this is main thread...72......49
this is main thread...73......49
this is main thread...74......49
this is main thread...75......49
this is main thread...76......49
this is main thread...77......49
this is main thread...78......49
this is main thread...79......49
this is main thread...80......49
this is main thread...81......49
this is main thread...82......49
this is main thread...83......49
this is main thread...84......49
this is main thread...85......49
this is main thread...86......49
this is main thread...87......49
this is main thread...88......49
this is main thread...89......49
this is main thread...90......49
this is main thread...91......49
this is main thread...92......49
this is main thread...93......49
this is main thread...94......49
this is main thread...95......49
this is main thread...96......49
this is main thread...97......49
this is main thread...98......49
this is main thread...99......49
this is main thread...100......49
this is sub thread...1.......50
this is sub thread...2.......50
this is sub thread...3.......50
this is sub thread...4.......50
this is sub thread...5.......50
this is sub thread...6.......50
this is sub thread...7.......50
this is sub thread...8.......50
this is sub thread...9.......50
this is sub thread...10.......50
this is main thread...1......50
this is main thread...2......50
this is main thread...3......50
this is main thread...4......50
this is main thread...5......50
this is main thread...6......50
this is main thread...7......50
this is main thread...8......50
this is main thread...9......50
this is main thread...10......50
this is main thread...11......50
this is main thread...12......50
this is main thread...13......50
this is main thread...14......50
this is main thread...15......50
this is main thread...16......50
this is main thread...17......50
this is main thread...18......50
this is main thread...19......50
this is main thread...20......50
this is main thread...21......50
this is main thread...22......50
this is main thread...23......50
this is main thread...24......50
this is main thread...25......50
this is main thread...26......50
this is main thread...27......50
this is main thread...28......50
this is main thread...29......50
this is main thread...30......50
this is main thread...31......50
this is main thread...32......50
this is main thread...33......50
this is main thread...34......50
this is main thread...35......50
this is main thread...36......50
this is main thread...37......50
this is main thread...38......50
this is main thread...39......50
this is main thread...40......50
this is main thread...41......50
this is main thread...42......50
this is main thread...43......50
this is main thread...44......50
this is main thread...45......50
this is main thread...46......50
this is main thread...47......50
this is main thread...48......50
this is main thread...49......50
this is main thread...50......50
this is main thread...51......50
this is main thread...52......50
this is main thread...53......50
this is main thread...54......50
this is main thread...55......50
this is main thread...56......50
this is main thread...57......50
this is main thread...58......50
this is main thread...59......50
this is main thread...60......50
this is main thread...61......50
this is main thread...62......50
this is main thread...63......50
this is main thread...64......50
this is main thread...65......50
this is main thread...66......50
this is main thread...67......50
this is main thread...68......50
this is main thread...69......50
this is main thread...70......50
this is main thread...71......50
this is main thread...72......50
this is main thread...73......50
this is main thread...74......50
this is main thread...75......50
this is main thread...76......50
this is main thread...77......50
this is main thread...78......50
this is main thread...79......50
this is main thread...80......50
this is main thread...81......50
this is main thread...82......50
this is main thread...83......50
this is main thread...84......50
this is main thread...85......50
this is main thread...86......50
this is main thread...87......50
this is main thread...88......50
this is main thread...89......50
this is main thread...90......50
this is main thread...91......50
this is main thread...92......50
this is main thread...93......50
this is main thread...94......50
this is main thread...95......50
this is main thread...96......50
this is main thread...97......50
this is main thread...98......50
this is main thread...99......50
this is main thread...100......50
java 5并发中的阻塞队列ArrayBlockingQueue的使用以及案例实现的更多相关文章
- Java中的阻塞队列-ArrayBlockingQueue（一）
最近在看一些java基础的东西,看到了队列这章,打算对复习的一些知识点做一个笔记,也算是对自己思路的一个整理,本章先聊聊java中的阻塞队列 参考文章: http://ifeve.com/java-b ...
- Java核心知识点学习----多线程中的阻塞队列,ArrayBlockingQueue介绍
1.什么是阻塞队列? 所谓队列,遵循的是先进先出原则(FIFO),阻塞队列,即是数据共享时,A在写数据时,B想读同一数据,那么就将发生阻塞了. 看一下线程的四种状态,首先是新创建一个线程,然后,通过s ...
- 聊聊并发（七）——Java中的阻塞队列
3. 阻塞队列的实现原理 聊聊并发(七)--Java中的阻塞队列 作者 方腾飞 发布于 2013年12月18日 | ArchSummit全球架构师峰会(北京站)2016年12月02-03日举办,了解更 ...
- java并发编程学习: 阻塞队列 使用 及 实现原理
队列(Queue)与栈(Stack)是数据结构中的二种常用结构,队列的特点是先进先出(First In First Out),而Stack是先进后出(First In Last Out),说得通俗点: ...
- Java并发编程：阻塞队列(转载）
Java并发编程:阻塞队列 在前面几篇文章中,我们讨论了同步容器(Hashtable.Vector),也讨论了并发容器(ConcurrentHashMap.CopyOnWriteArrayList), ...
- 【转】Java并发编程：阻塞队列
在前面几篇文章中,我们讨论了同步容器(Hashtable.Vector),也讨论了并发容器(ConcurrentHashMap.CopyOnWriteArrayList),这些工具都为我们编写多线程程 ...
- 12、Java并发编程：阻塞队列
Java并发编程:阻塞队列 在前面几篇文章中,我们讨论了同步容器(Hashtable.Vector),也讨论了并发容器(ConcurrentHashMap.CopyOnWriteArrayList), ...
- Java中的阻塞队列（BlockingQueue）
1. 什么是阻塞队列 阻塞队列(BlockingQueue)是 Java 5 并发新特性中的内容,阻塞队列的接口是 java.util.concurrent.BlockingQueue,它提供了两个附 ...
- 多线程编程学习六(Java 中的阻塞队列).
介绍 阻塞队列(BlockingQueue)是指当队列满时,队列会阻塞插入元素的线程,直到队列不满:当队列空时,队列会阻塞获得元素的线程,直到队列变非空.阻塞队列就是生产者用来存放元素.消费者用来获取 ...
随机推荐
- dpkg: error: -i (--install) 和 -i (--install) 两个操作之间有矛盾
1 错误描述 youhaidong@youhaidong-ThinkPad-Edge-E545:~$ sudo dpkg -i -i WineQQ2013-20131120-Longene.deb [ ...
- .Net 4.X 提前用上 .Net Core 的配置模式以及热重载配置
1. 前言 在提倡微服务及 Serverless 越来越普及的当下,在 .Net Core 之前,.Net 应用的配置模式往往依赖于一个名为 web.config 的 XML 文件,耦合性高,而可扩展 ...
- Scrapyd日志输出优化
现在维护着一个新浪微博爬虫,爬取量已经5亿+,使用了Scrapyd部署分布式. Scrapyd运行时会输出日志到本地,导致日志文件会越来越大,这个其实就是Scrapy控制台的输出.但是这个日志其实有用 ...
- 小白——java基础之数据类型
PS:此文章为小白提供,大佬请绕道!!!! 首先特别感谢大才哥给我提供这个平台,未来我希望把java这个版块的内容补全. 今天要讲的是数据类型,最最最基础的内容~ java标识符.数据类型.关键字 开 ...
- 动态链接库（DLL）
DLL 的类型 当您在应用程序中加载 DLL 时,可以使用两种链接方法来调用导出的 DLL 函数.这两种链接方法是加载时动态链接和运行时动态链接. 加载时动态链接 在加载时动态链接中,应用程序像调用本 ...
- Python机器学习中文版
Python机器学习简介 第一章 让计算机从数据中学习 将数据转化为知识 三类机器学习算法 第二章 训练机器学习分类算法 透过人工神经元一窥早期机器学习历史 使用Python实现感知机算法 基于Iri ...
- Luogu4175：[CTSC2008]网络管理Network
题面 Luogu4175:[CTSC2008]网络管理Network Sol 路径第\(k\)大 无解直接判断就好了 然后整体二分,加上树链剖分+树状数组统计 # include <bits/s ...
- vue-过滤器filter
vue-过滤器filter vue的过滤器一般在JavaScript 表达式的尾部,由"|"符号指示: 过滤器可以让我们的代码更加优美,一般可以用在时间格式化,首字母大写等等. 例 ...
- Java的深拷贝和浅拷贝
关于Java的深拷贝和浅拷贝,简单来说就是创建一个和已知对象一模一样的对象.可能日常编码过程中用的不多,但是这是一个面试经常会问的问题,而且了解深拷贝和浅拷贝的原理,对于Java中的所谓值传递或者引用 ...
- angular何时触发脏检查机制
ng只有在指定事件触发后,才进入$digest cycle: DOM事件,譬如用户输入文本,点击按钮等.(ng-click) XHR响应事件 ($http) 浏览器Location变更事件 ($loc ...