Application.java

import java.util.concurrent.*;

public class Application
{
    public static void main(String[] args) throws InterruptedException
    {
        System.out.println("main thread is started");
        ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();

        scheduledExecutorService.scheduleAtFixedRate(() -> {
            System.out.println("Thread [" + Thread.currentThread().getName() + "] is executing the task");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                System.out.println("sleeping thread get interrupted");
            }
        }, 5, 2, TimeUnit.SECONDS);
    }
}