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I was simply exploring the java.util.concurrent package. I learnt that the class ' Future ' has a method boolean cancel(boolean mayInterruptIfRunning) Please find attached the test code I wrote : package com.java.util.concurrent; import java.util.concurrent.Callable; import java.util.concurrent.FutureTask; import java.util.concurrent.ScheduledFuture; import java.util.concurrent.ScheduledThreadPoolExecutor; public class FutureTester { /** * @param args * @throws InterruptedException */ public static void main(String[] args) throws InterruptedException { // TODO Auto-generated method stub int poolCnt = 1; Callable<NumberPrinter> numberPrinter = null; ScheduledThreadPoolExecutor schPool = new ScheduledThreadPoolExecutor( poolCnt); ScheduledFuture<NumberPrinter>[] numPrinterFutures = new ScheduledFuture[poolCnt]; FutureTask<NumberPrinter>[] futureTask = new FutureTask[poolCnt]; for (int i = 0; i < poolCnt; i++) { numberPrinter = new NumberPrinter(); futureTask[i] = new FutureTask<NumberPrinter>(numberPrinter); /* * numPrinterFutures[i] = (ScheduledFuture<NumberPrinter>) schPool * .schedule(futureTask[i], 0, TimeUnit.MILLISECONDS); */ numPrinterFutures[i] = (ScheduledFuture<NumberPrinter>) schPool .submit(futureTask[i]); } //Thread.sleep(30); if (numPrinterFutures.length > 0) { System.out.println("Task completed ? " + numPrinterFutures[0].isDone()); System.out.println("Task cancelled ? " + numPrinterFutures[0].cancel(true)); System.out.println("Is task cancelled ? " + numPrinterFutures[0].isCancelled()); } } } class NumberPrinter implements Callable<NumberPrinter> { private int counter = 10; @Override public NumberPrinter call() throws Except

Tags (comma-separated) Cancel