подскажите немного

ublic class Solution {
    public static volatile int numSeconds = 4;

    public static void main(String[] args) throws InterruptedException {
        RacingClock clock = new RacingClock();
        Thread.sleep(3500);
        clock.interrupt();
    }

    public static class RacingClock extends Thread {
        public RacingClock() {
            start();
        }

        public void run() {
            if (!isInterrupted()) {
                while (numSeconds > 0) {
                    try {
                        System.out.print(numSeconds + " ");
                        numSeconds--;
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                System.out.println("Марш!");
            } else {
                System.out.println("Прервано!");
            }
        }
    }
}

public class Solution {
    public static volatile int numSeconds = 4;

    public static void main(String[] args) throws InterruptedException {
        RacingClock clock = new RacingClock();
        Thread.sleep(3500);
        clock.interrupt();
    }

    public static class RacingClock extends Thread {
        public RacingClock() {
            start();
        }

        public void run() {
                while (numSeconds > 0) {
                    try {
                        System.out.print(numSeconds + " ");
                        numSeconds--;
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            if (isInterrupted()) {
                System.out.println("Прервано!");
            }
            else {
                System.out.println("Марш!");
            }
        }
    }
}

public class Solution {
    public static volatile int numSeconds = 4;

    public static void main(String[] args) throws InterruptedException {
        RacingClock clock = new RacingClock();
        Thread.sleep(3500);
        clock.interrupt();
    }

    public static class RacingClock extends Thread {
        public RacingClock() {
            start();
        }

        public void run() {
            while (numSeconds > 0) {
                try {
                    System.out.print(numSeconds + " ");
                    numSeconds--;
                    Thread.sleep(1000);
                } catch (InterruptedException e) { // тут значение флага меняется на false ?
                    e.printStackTrace();
                    System.out.println("Прервано!");
                }
            }
            if(!Thread.currentThread().isInterrupted()) { // и потому Марш тоже печатается?
                System.out.println("Марш!");
            }
        }
    }
}