public class MyTask implements Runnable {
    private final int MAX_COUNT = 100000;
    private CountMonitor mon;

    public MyTask(CountMonitor mon) {
        this.mon = mon;
    }

    @Override
    public void run() {
        System.out.println("Starting! Shared counter = " + mon.getCounter());
        for (int i = 0; i < MAX_COUNT; i++) {
            mon.increment();
        }
        System.out.println("Done! Shared counter = " + mon.getCounter());
    }
}