Concurrency
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jiafu1115
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uncaught exception : executors submit execute
6down vote accepted There is a difference when looking at exception handling. If your tasks throws an exception and if it was submitted withexecute this exception will go to the uncaug转载 2012-06-07 13:08:15 · 635 阅读 · 0 评论 -
awaitTermination() shutdown()
newFixedThreadPool创建一个固定大小的线程池。shutdown()：用于关闭启动线程，如果不调用该语句，jvm不会关闭。awaitTermination()：用于等待子线程结束，再继续执行下面的代码。该例中我设置一直等着子线程结束。 Java代码 public class Test { public static转载 2012-07-06 10:13:39 · 29071 阅读 · 4 评论 -
结合使用 volatile 和 synchronized 实现 “开销较低的读－写锁”
结合使用 volatile 和 synchronized 实现 “开销较低的读－写锁” @ThreadSafepublic class CheesyCounter { // Employs the cheap read-write lock trick // All mutative operations MUST转载 2012-06-06 21:21:58 · 898 阅读 · 0 评论 -
保证n不发布出去，即可不加volatile,因为读的地方都做了锁。保证可见性
publicclassHelper{ privatevolatileint n; privatefinalObject lock =newObject(); publicHelper(int n){ this.n= n; } publicvoid setN(int value){ synchronized(lock){转载 2012-06-06 22:07:19 · 506 阅读 · 0 评论