public static void main(String[] args) {
int days0 = daysBetweenDates(15, 6, 2020, 0, 0, 0, 15, 6, 2021,0,0,0);
double days1 = calculcateFactor(2, 11, 2020, 0,0, 15, 6, 2021, 0, 0);
float gutschrift = (float) (325.0 * days1);
System.out.println(gutschrift);
}
public static double calculcateFactor(int d1, int m1, int y1, int hour1, int minute1, int d2, int m2,
int y2, int hour2, int minute2) {
double result = 360 * (y2 - y1) + 30 * (m2 - m1) + (d2-d1) + (hour2 - hour1) + (minute2 - minute1);
result = result / 360;
return result;
}