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package com.zetcode;

import java.util.concurrent.Executors;

import java.util.concurrent.ScheduledExecutorService;

import java.util.concurrent.ScheduledFuture;

import java.util.concurrent.TimeUnit;

class Task implements Runnable {

public void run() {

var threadName = Thread.currentThread().getName();

System.out.printf("Doing task in %s%n", threadName);

}

}

// ExecutorService schedules commands to run after a given

// delay, or to execute periodically.

public class ScheduledExecutorServiceEx {

public static void main(final String[] arguments) {

ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(4);

ScheduledFuture<?> taskHandler =

scheduler.scheduleAtFixedRate(new Task(), 2, 2, TimeUnit.SECONDS);

scheduler.schedule(() -> {

taskHandler.cancel(true);

scheduler.shutdown();

}, 10, TimeUnit.SECONDS);

System.out.println("Launching tasks");

}

}