public boolean awaitTermination(long timeout, TimeUnit unit)This method blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first. public static ForkJoinPool commonPool()This method returns the comm...
}publicclassJavaForkJoingetActivethreadcountExample1{publicstaticvoidmain(finalString[] arguments)throwsInterruptedException{// get no. of available core availableintproc = Runtime.getRuntime().availableProcessors(); System.out.println("Number of available core in the processor is: "+ proc);// get ...
publicstaticvoidmain(String[] args) throws ExecutionException, InterruptedException{//生成一个池ForkJoinPool forkJoinPool=newForkJoinPool(); ForkJoinTask task=newForkJoinExample(1,100000); ForkJoinTask<Integer> submit = forkJoinPool.submit(task); Integer sum = submit.get(); System.out.println("...
ForkJoinPool是Java中的一个用于并行执行任务的线程池,它使用分治策略将任务分解为更小的任务,然后将这些任务分配给不同的线程执行。以下是一个简单的ForkJoinPool使用案例: ```java import java.util.concurrent.RecursiveTask; import java.util.concurrent.ForkJoinPool; public class ForkJoinPoolExample { public ...
packagecom.ma.juc.example.ForkJoin;importjava.util.concurrent.RecursiveTask;importlombok.extern.slf4j.Slf4j;/* * 描述 : 使用双端队列 和 工作窃取算法 * 局限 : * 1.只能使用Fork和Join来做同步机制,可能会有竞争(任务列表只有一个任务的时候) ...
import java.util.concurrent.ForkJoinPool;import java.util.Random;public class ForkJoinPoolExample {public static void main(String[] args) throws Exception {int[] array = new int[1000000]; // 创建一个包含100万个元素的数组Random random = new Random();for (int i = 0; i < array.length; ...
import java.util.concurrent.ForkJoinPool; import java.util.concurrent.Future; import java.util.concurrent.RecursiveTask; @Slf4j public class ForkJoinTaskExample extends RecursiveTask<Integer> { public static final int threshold = 2; private int start; ...
import java.util.concurrent.*; public class ForkJoinPoolExample { public static void main(String[] args) { ForkJoinPool pool = new ForkJoinPool(); RecursiveTask task = new RecursiveTask() { @Override protected void compute() { int start = getTaskSize(); int end = start + (int) (Math...
it is rethrown as the outcome of this invocation. Rethrown exceptions behave in the same way as regular exceptions, but, when possible, contain stack traces (as displayed for example usingex.printStackTrace()) of both the current thread as well as the thread actually encountering the exception;...
* tasks regularly block. Using a smaller value (for example * {@code 0}) has the same effect as the default. * * @param maximumPoolSize the maximum number of threads allowed. * When the maximum is reached, attempts to replace blocked ...