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public class CompletableFutureDemo { public static void main(String[] args) throws Exception { //同步,异步,异步回调 //MQ消息中间件 //同步 CompletableFuture<Void> fut 阅读全文
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0-100求和:class MyTask extends RecursiveTask<Integer>{ public static final int ADJAST_VALUE = 10; private int begin; private int end; private int result 阅读全文
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线程池要在执行execute时才会正式创建线程 public ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> wo 阅读全文
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public class SemaphoreDemo { public static void main(String[] args) { //三个停车位 Semaphore sp = new Semaphore(3); //停六个汽车 for (int i = 1; i <=6 ; i++) { 阅读全文
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CyclicBarrier public class CyclicBarrierDemo { public static void main(String[] args) { CyclicBarrier cyclicBarrier = new CyclicBarrier(7,()->{ System 阅读全文