wnjok的专栏

    Thread的五种状态：         1, new<---------new Thread()         2, runnable<----thread.start()         3, running<-----cpu轮流调度         4, blocked<-----(3种: wait pool,sleep,lock pool(等...

http://www.cnblogs.com/linjiqin/archive/2013/05/30/3108188.html

事实不像想象中的那样，实践，体会的才深。   被覆盖输出 list.size()=1937  //73个元素被覆盖// 如果size==2000,再试一次直到size <2000 p=1508,n=1510  //1509被覆盖 p=1575,n=1577  //1509被覆盖 检查全部输出： 1506-3001-1507-1508-3002-1510，发现1509被覆盖了...

put-take-block,offer-poll-noblock-false-null Error和RuntimeException 及其子类都是未检查的异常（unchecked exceptions） 所有其他的Exception类都是检查了的异常（checked exceptions）. NullPointerException,IndexOutOfBoundException, ...

Semaphore.acquire()：最多n个运行，与Executors.newFixedThreadPool( 2 )作用相似 CyclicBarrier.await(): 加到n才开始 CountDownLatch.await(): 减到0才开始   /** * CyclicBarrier.await(): Waits until all parties have invok...

Semaphore.acquire()：Acquires a permit from this semaphore, blocking until one is available 与Executors.newFixedThreadPool( 2 )作用相似 CyclicBarrier.await(): Waits until all parties have invoked await ...

Semaphore.acquire()：Acquires a permit from this semaphore, blocking until one is available 与Executors.newFixedThreadPool( 2 )作用相似 CyclicBarrier.await(): Waits until all parties have invoked await ...

/** * 3个线程，依次执行 * @author timeriver.wang * @date 2014-03-10 2:06:19 PM */ public class ThreeThreadCommunication { public static void main( String[] args ) { final Bunnies bunn...

被加锁的对象是共享数据，不是线程   1，put,get方法入口处设置断点，debug验证：可以同时有2个读线程，但最多只能有一个写线程 2，用ReentrantReadWriteLock实现线程安全的cache   /** * @author timeriver.wang * @date 2014-03-10 1:37:11 PM */ public class Re...

方法

/** * 构造线程的2种方式，第三个线程是混合方式 * * @author timeriver.wang * @date Mar 10, 2014 3:11:05 PM */ public class TraditionThread { public static void main( String[] args ) { /** ...

1, 共5个必备线程，和1个用户线程Thread[Thread-0,5,main] //[name,priority,group.name]        main group: 5-main; 5-Thread-0        system group: 10-Reference Handler, 9-Signal Dispatcher, 8-Finalizer, 5-Attach L...

1, 线程池调度线程，而不是new Thread.startI()调度 public class TestExecutorService { public static void main( String[] args ) { // 同时最多只能有2个线程 nThreads ExecutorService pool = Executors....

  1、ThreadGroup,统一管理线程，比如优先级，interrupt等   public class MyThreadGroup { public static void main( String args[] ) throws Exception { ThreadGroup tg = new ThreadGroup( "My Gro...

http://www.cnblogs.com/peida/archive/2013/05/31/3070790.html   ThreadLocal 线程独享，synchronized 方法独享。   import java.text.ParseException; public class TestSimpleDateFormat { public stat...