Java Utililty Methods Month Calculate

return MONTH_NAMES[getCurrentMonth() - 1];

Calendar tempcalendar = GregorianCalendar.getInstance();
tempcalendar.setTime(gamedate);
tempcalendar.add(Calendar.MONTH, Shift);
return tempcalendar.getTime();

Calendar cFirst = new GregorianCalendar();
cFirst.setTime(firstDate);
Calendar cLast = new GregorianCalendar();
cLast.setTime(lastDate);
int cFirst_year = cFirst.get(Calendar.YEAR);
int cFirst_month = cFirst.get(Calendar.MONTH);
int cLast_year = cLast.get(Calendar.YEAR);
int cLast_month = cLast.get(Calendar.MONTH);
...

return monthStrings[month];

Calendar tempcalendar1 = GregorianCalendar.getInstance();
Calendar tempcalendar2 = GregorianCalendar.getInstance();
tempcalendar1.setTime(Shift);
tempcalendar2.setTime(gamedate);
int month1 = tempcalendar1.get(Calendar.MONTH);
int month2 = tempcalendar2.get(Calendar.MONTH);
month1 = month1 + 12 * (tempcalendar1.get(Calendar.YEAR) - tempcalendar2.get(Calendar.YEAR));
return month1 - month2;
...

return getlastDateofThisMonth(-1, -1);

Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.MONTH, -1);
calendar.set(Calendar.DAY_OF_MONTH, 1);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
...

date = deleteDash(date);
return (date.substring(0, 4) + "-" + date.substring(4, 6));

List<Date> intervals = new ArrayList<Date>();
GregorianCalendar c = new GregorianCalendar();
c.setTime(start);
int startMonth = c.get(Calendar.MONTH);
int year = c.get(Calendar.YEAR);
int month = startMonth;
intervals.add(start);
while (true) {
...

Calendar calendar = new GregorianCalendar();
int m = calendar.get(GregorianCalendar.MONTH);
String month = new Integer(m + 1).toString();
if (month.length() < 2)
    month = "0" + month;
return month;