import java.util.concurrent.atomic.AtomicInteger;

public class ThreadSynchronizationExample {

private static final int NUM_THREADS = 10;

public static void main(String[] args) {

AtomicInteger counter = new AtomicInteger(0);

for (int i = 0; i < NUM_THREADS; i++) {

Thread thread = new Thread(() -> {

for (int j = 0; j < 1000; j++) {

counter.incrementAndGet();

}

});

thread.start();

}

try {

for (Thread thread : Thread.getAllStackTraces().keySet()) {

thread.join();

}

} catch (InterruptedException e) {

e.printStackTrace();

}

System.out.println("Final counter value: " + counter.get());

}

}