在我们这个技术驱动的社会中,小工具和硬件只是硬币更明显的一面。在这一章中,我们将讨论编程的基础知识。我们还将看看数字系统的可见部分:硬件。 到底什么是编程? 基本上,编程是告诉数字设备,比如你的个人电脑,做什么的行为。我们键入由编程语言定义的命令列表,以便发生有用或有趣的事件。正确编程的计算机运行着世界...
anonymousInnerClass.getSimpleName(); // -> // An empty string // Array of primitives Class<?> primitiveArrayClass = new int[0].getClass(); primitiveArrayClass.getName(); // -> [I primitiveArrayClass.getCanonicalName(); // -> int[] primitiveArrayClass.getSimpleName(); // -> int...
;// Finish profiling the zygote initialization.SamplingProfilerIntegration.writeZygoteSnapshot();// Do an initial gc to clean up after startupgcAndFinalize();// Disable tracing so that forked processes do not inherit stale tracing tags from// Zygote.Trace.setTracingEnabled(false);//*** 第四阶...
Convenience returning an array of rect representing the regions withinrectAthat do not overlap withrectB. staticRectanglecomputeIntersection(int x, int y, int width, int height,Rectangledest) Convenience to calculate the intersection of two rectangles without allocating a new rectangle. ...
The call to addWorker atomically checks runState and * workerCount, and so prevents false alarms that would add * threads when it shouldn't, by returning false. * 如果运行的线程少于corePoolSize,请尝试以给定的命令作为第一个任务启动新线程。 * 对addWorker的调用以原子方式检查runState和workerCount,...
Returns an estimate of the number of consumers waiting to receive elements via Take() or timed Poll(Int64, TimeUnit). Methods 展開資料表 Add(Object) Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions, returning true ...
3. Upload incorrectly returning as successful whenIOExceptionoccurs Issue description All overloads ofvoid BlobClient.upload()andvoid BlobClient.uploadWithResponse()silently catch error responses from the storage service. The method should either return or throw as its success/error indicator. The excep...
* tolerate that some array slots may be null. */ ForkJoinWorkerThread[] workers; ForkJoinWorkerThread为任务的执行线程,workers数组在构造方法中初始化,其大小必须为2的n次方(方便将取模转换为移位运算)。 ForkJoinPool初始化方法: // initialize workers array with room for 2*parallelism if possibleint ...
static Provider[] getProviders() Returns an array containing all the installed providers (technically, the Provider subclass for each package provider). The order of the Providers in the array is their preference order. static Provider getProvider (String providerName) Returns the Provider named provide...
* returning the updated value. The function should be * side-effect-free, since it may be re-applied when attempted * updates fail due to contention among threads. The function * is applied with the current value as its first argument, ...