DateHelper { public static String formatShortDate(Date dt) { return SHORT_DATE_FORMAT.format(dt); } private  DateHelper(); static String format(Date dt); static String format(Date dt, String pattern); static String formatShortDate(Date dt); static String formatShortTime(Date dt); static String formatISO8601(Date dt); static Calendar getEmptyCalendar(); static Calendar calendar(int year, int month, int day); static Date date(int year, int month, int day); static Date beginOfDay(Date dt); static Date endOfDay(Date dt); static int diffDays(Date dtEnd, Date dtBegin); static Date setTime(Date date, Date time); static Date getTime(Date datetime); static boolean isOnlyTime(Date dt); static boolean isOnlyDate(Date dt); static Date addDays(Date date, int count); static boolean isEmpty(Date date); static String[] getWeekdays(); static String[] getShortWeekdays(); static int[] getIndexWeekdays(); static final String DATE_FORMAT_ISO8601; }
@Test public void testFormatShortDate() throws Exception { Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(0); cal.set(2015, Calendar.FEBRUARY, 23, 9, 12, 30); final String strDate = DateHelper.formatShortDate(cal.getTime()); assertEquals(strDate, "23.02.15"); }