Online Java Compiler By
JavaTpoint.com
import java.util.ArrayList; import java.util.List; import java.util.concurrent.ForkJoinPool; import java.util.concurrent.RecursiveAction; class Taaskk1 extends RecursiveAction { private long Load = 0; public Taaskk1(long Load) { this.Load = Load; } @Override protected void compute() { //if work is above threshold, break tasks up into smaller tasks List
subtasks = new ArrayList
(); subtasks.addAll(createSubtasks()); for(RecursiveAction subtask : subtasks){ subtask.fork(); } } private List
createSubtasks() { List
subtasks =new ArrayList
(); Taaskk1 subtask1 = new Taaskk1(this.Load / 2); Taaskk1 subtask2 = new Taaskk1(this.Load / 2); Taaskk1 subtask3 = new Taaskk1(this.Load / 2); subtasks.add(subtask1); subtasks.add(subtask2); subtasks.add(subtask3); return subtasks; } } public class JavaForkJoinShutdownNowExample1 { public static void main(final String[] arguments) throws InterruptedException { int proc = Runtime.getRuntime().availableProcessors(); System.out.println("numbers of core available in your processor:" +proc); ForkJoinPool Pool = ForkJoinPool.commonPool(); System.out.println(" Before invoking number of active thread :" +Pool.getActiveThreadCount()); Taaskk1 t = new Taaskk1(400); Pool.invoke(t); Pool.shutdownNow(); System.out.println(" After Shutdown :" +Pool.isShutdown()); System.out.println("Common Pool Size :" +Pool.getPoolSize()); } }
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