finalAtomicIntegerrc=newAtomicInteger();// 原子整型,写个数finalAtomicIntegerwc=newAtomicInteger();// 读线程Runnableread=newRunnable(){publicvoidrun(){scanFile(root);scanFile(exitFile);}publicvoidscanFile(Filefile){if(file.isDirectory()){File[]files=file.listFiles(newFileFilter(){publicbooleanaccept(F...
首先看两段代码,一段是Integer的,一段是AtomicInteger的,为以下: publicclassSample1 {privatestaticInteger count =0; synchronizedpublicstaticvoidincrement() { count ; } } 1 2 3 4 5 6 7 8 9 以下是AtomicInteger的: publicclassSample2 {privatestaticAtomicInteger count =newAtomicInteger(0);publicstaticv...
final int num = index; Runnable write = new Runnable() { String threadName = "Write" + num; public void run() { while (true) { try { Thread.sleep(randomTime()); // 原子整型的incrementAndGet方法,以原子方式将当前值加 1,返回更新的值 int index = wc.incrementAndGet(); // 获取并移除...
finalAtomicIntegerrc=newAtomicInteger();// 原子整型,写个数finalAtomicIntegerwc=newAtomicInteger();// 读线程Runnableread=newRunnable(){publicvoidrun(){scanFile(root);scanFile(exitFile);}publicvoidscanFile(Filefile){if(file.isDirectory()){File[]files=file.listFiles(newFileFilter(){publicbooleanaccept(F...
private static AtomicInteger count = new AtomicInteger(0); public static void increment() { count.getAndIncrement(); } } 以上两段代码,在使用Integer的时候,必须加上synchronized保证不会出现并发线程同时访问的情况,而在AtomicInteger中却不用加上synchronized,在这里AtomicInteger是提供原子操作的,下面就对这进行...
log.info("获取到当前的所有实例轮询相同权重的结果:{}",indexServer); return serviceInstances.get(indexServer).getUri().toString(); } private AtomicInteger nextIndex = new AtomicInteger(0); private int incrementAndGetModulo(int modulo) { for (;;) { ...
publicclassSample2 {privatestaticAtomicInteger count =newAtomicInteger(0);publicstaticvoidincrement() { count.getAndIncrement(); } } 以上两段代码,在使用Integer的时候,必须加上synchronized保证不会出现并发线程同时访问的情况,而在AtomicInteger中却不用加上synchronized,在这里AtomicInteger是提供原子操作的,下面就...
// 首先创建一个 AtomicInteger 对象 AtomicInteger atomicInteger = new AtomicInteger(); // 在操作之前先赋值,如果不显式赋值则值默认为 0 ,就像 int 型变量使用前做初始化赋值一样。 atomicInteger.set(1000); // 之后可以调用各种方法进行增减操作 ... // 获取当前值 atomicInteger.get(); // 先获取当前...
the index Returns Int32 the previous value Attributes RegisterAttribute Remarks Atomically increments the value of the element at indexi, with memory effects as specified byVarHandle#getAndAdd. Equivalent togetAndAdd(i, 1). Java documentation forjava.util.concurrent.atomic.AtomicIntegerArray.getAnd...
Returns the current value of the element at index i, with memory effects as specified by VarHandle#getVolatile. [Android.Runtime.Register("get", "(I)I", "")] public int Get (int i); Parameters i Int32 the index Returns Int32 the current value Attributes RegisterAttribute Remarks ...