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Java 线程执行与变量可见性的 happen-before 关系什么是 happen-before 的关系happen-before 的关系是保证一个线程执行的操作结果对不同线程中的另一个操作可见。Happens-before 定义程序中所有操作的部分排序。为了保证执行操作Y的线程可以看到操作X的...

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java线程对变量的缓存，是一个线程对应一份，还是一个CPU对应一份。：报错

java的多线程中，会将从内存中读取到的变量值缓存在CPU中，如果有三个线程A,B,C 两个CPU1，2。线程A,B由CPU1执行，线程C由CPU2执行，线程A，B，C有一个共同的变量X，那么对于变量X在CPU中的缓存，是CPU1有一份，CPU2有一份，还是CPU1有两份分别对应线程A，线程B？

多个Java线程中的变量同步

我的问题是关于如何使用同步块的，我的类FileAdapter有一个方法write，它接收用于下载文件的HTTP连接结果的InputStream，对于下载并写入磁盘的每千字节，它调用接收到的DownloadReport类实例的download方法，以传递已下载的内容。在另一个将输出输出给用户的Thr...

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更新时间 2024-03-15 15:27:24

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