public double getTime() {
Date current_date = new Date();
return (double) ((current_date.getTime() - start_date.getTime()) / 1000.0);
}
public void reportClock(String title) {
Date current_date = new Date();
double seconds = (double) ((current_date.getTime() - start_date.getTime()) / 1000.0);
System.out.println(title + ": time = " + seconds);
}