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1.线程间通信之wait notifypublic class Demo3 { private volatile int signal; public synchronized void set() { this.signal = 1; notifyAll(); } public synchroni...

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java并发原理实战(5)--线程安全性问题和synchronized原理理解

线程安全性问题一、活跃性问题死锁饥饿活锁1.死锁：经典例子：“哲学家进餐”问题。死锁的解决：可以看到在jconsole中，可以用这个工具检测死锁问题：2.饥饿：当线程无法访问它所需要的资源而不能继续执行时，就发生了饥饿现象。引发饥饿最常见的资源就是CPU时钟周期。如果在Java应用程序中对线程的优先...

java并发原理实战(4) -- 线程的创建方式

创建线程1.继承thread执行流程:客户端调用start()方法----private native void start0();---控制权交给jvm ----抢到资源后，执行该线程父类自定义过的自己又去重写的run()方法实例代码:public class Demo1 extends Thre...

java并发原理实战(3) -- 线程的中断和初始化

1.多线程中start和run方法的区别?start源码:1。start(): 先来看看Java API中对于该方法的介绍：使该线程开始执行；Java 虚拟机调用该线程的 run 方法。结果是两个线程并发地运行；当前线程（从调用返回给 start 方法）和另一个线程（执行其 run 方法）。多...

java并发原理实战(2)--线程的状态和切换

高效并发1.join的理解join源码中，只会调用wait方法，并没有在结束时调用notify，这是因为线程在die的时候会自动调用自身的notifyAll方法，来释放所有的资源和锁。2.sleep的理解调用sleep()之后，会引起当前执行的线程进入暂时中断状态，也即睡眠状态。中断完成之后，自动进...

Java并发编程实战（线程控制操作详解）

通过本篇文章来今天带大家一文掌握线程控制操作，感谢您的观看。目录📌前言📱一、线程的基本概念✏️1.并行和并发✏️2.进程和线程💻二、线程的运行状态🔦三、线程编程实践📝1.线程两种定义方法📝2.启动线程📝3.同时定义和启动线程📝 4.线程弹出与暂停...

Java高性能编程实战 - 线程终止

相关源码1 虚假的线程中止-StopDestroy: JDK未实现该方法。Stop：中止线程并且清除监控器锁的信息，但可能导致线程安全问题，JDK已废弃。程序执行结果没有保证同步代码块里面数据的一致性，破坏了线程安全。2 真正的线程终止2.1 interrupt如果目标线程在调用Object类的wa...

Java并发编程实战系列8之线程池的使用

ThreadPoolExecutor UML图： image image 8.1 在任务和执行策略之间隐形耦合避免Thread starvation deadlock 8.2 设置线程池大小 8.3 配置ThreadPoolExecutor image 构造函数如下： public ThreadP...

Java Socket实战-多线程通信传输对象传输压缩对象

http://blog.csdn.net/kongxx/article/details/7259465 http://blog.csdn.net/kongxx/article/details/7259827 http://blog.csdn.net/kongxx/article/details/72...

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