Java Utililty Methods Year Month

Calendar calendar = Calendar.getInstance();
calendar.set(year, month, 1);
return getStartDate(calendar.getTime());

Calendar cal = new GregorianCalendar();
cal.set(year, month, 1);
return new GregorianCalendar(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH),
        cal.get(Calendar.DAY_OF_MONTH) - 1);

return getYearMonth(new Date());

Calendar today = Calendar.getInstance();
return (today.get(Calendar.YEAR)) * 100 + today.get(Calendar.MONTH) + 1;

SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
try {
    simpleDateFormat.setTimeZone(TimeZone.getTimeZone(timeZone));
    Date date = simpleDateFormat.parse(yearMonth + "-01 00:00:00");
    return date.getTime();
} catch (ParseException ex) {
    System.out.println("Exception " + ex);
return 0L;

return toString(new Date(), PATTERN_YYYYMM);

return getYearMonth(new Date());

String yearMonth = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
yearMonth = sdf.format(new java.util.Date());
return yearMonth;

if (sDate == null)
    return "";
return (new java.text.SimpleDateFormat("yyyy-MM")).format(sDate.getTime());

if (null == date) {
    return null;
SimpleDateFormat yearFormat = new SimpleDateFormat("yyyyMM");
return yearFormat.format(date);