Java Utililty Methods Year Day

SimpleDateFormat format = new SimpleDateFormat(default_format);
Calendar calendar = Calendar.getInstance();
calendar.clear();
calendar.set(Calendar.YEAR, year);
Date currYearFirst = calendar.getTime();
return format.format(currYearFirst);

SimpleDateFormat df = new SimpleDateFormat("yyyy");
String todayAsString = df.format(new Date());
todayAsString = todayAsString + "-01-01";
return todayAsString;

Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.MONTH, 1);
calendar.set(Calendar.DAY_OF_YEAR, 1);
Date date = new Date(calendar.getTimeInMillis());
return shortDateFormat.format(date);

Calendar lastDayOfThisYear = Calendar.getInstance();
lastDayOfThisYear.clear();
lastDayOfThisYear.set(Calendar.YEAR, year);
lastDayOfThisYear.set(Calendar.DAY_OF_YEAR, 1);
lastDayOfThisYear.add(Calendar.YEAR, 1);
lastDayOfThisYear.add(Calendar.MILLISECOND, -1);
return lastDayOfThisYear.getTime();

return getEndDate(Calendar.DECEMBER, year);

return getLastDayOfQuarter(year, 4);

int yyyy = Integer.parseInt(dateFormat(new Date(), "yyyy"));
return yyyy;

Calendar calendar = Calendar.getInstance();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
Date curDate = format.parse(strDate);
int iWeekNum;
calendar.setTime(curDate);
if (calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) {
    iWeekNum = calendar.get(Calendar.WEEK_OF_YEAR) - 1;
} else {
...

SimpleDateFormat format = new SimpleDateFormat("yyyy");
Date d = null;
try {
    d = format.parse(date);
} catch (Exception e) {
    e.printStackTrace();
Calendar cal = Calendar.getInstance();
...

SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy");
Date date = null;
try {
    date = simpleDateFormat.parse(dateString);
} catch (Exception e) {
    e.printStackTrace();
Calendar calendar = Calendar.getInstance();
...