/** Compares two dates and returns -1, 0, or 1 is the date is before, equal or after */
public int compareTo(Date other) {
if (this.getYear() < other.getYear()) return -1;
else if ((this.getYear() <= other.getYear()) && (this.getIntMonth() < other.getIntMonth()))
return -1;
else if ((this.getYear() <= other.getYear())
&& (this.getIntMonth() <= other.getIntMonth())
&& (this.getDay() < other.getDay())) return -1;
else if ((this.getYear() == other.getYear())
&& (this.getIntMonth() == other.getIntMonth())
&& (this.getDay() == other.getDay())) return 0;
else return 1;
}