List of usage examples for java.util Calendar clear
public final void clear()
Calendar undefined. From source file:org.kuali.kra.budget.summary.BudgetSummaryServiceImpl.java
protected Date getLeapDay(Date date) { Calendar c1 = Calendar.getInstance(); c1.clear(); c1.set(getYear(date), 1, 29);//from w w w .j a v a 2 s. c om return new java.sql.Date(c1.getTime().getTime()); }
From source file:org.apache.logging.log4j.core.util.datetime.FastDateParserTest.java
@Test public void testParseZone() throws ParseException { final Calendar cal = Calendar.getInstance(NEW_YORK, Locale.US); cal.clear(); cal.set(2003, Calendar.JULY, 10, 16, 33, 20); final DateParser fdf = getInstance(yMdHmsSZ, NEW_YORK, Locale.US); assertEquals(cal.getTime(), fdf.parse("2003-07-10T15:33:20.000 -0500")); assertEquals(cal.getTime(), fdf.parse("2003-07-10T15:33:20.000 GMT-05:00")); assertEquals(cal.getTime(), fdf.parse("2003-07-10T16:33:20.000 Eastern Daylight Time")); assertEquals(cal.getTime(), fdf.parse("2003-07-10T16:33:20.000 EDT")); cal.setTimeZone(TimeZone.getTimeZone("GMT-3")); cal.set(2003, Calendar.FEBRUARY, 10, 9, 0, 0); assertEquals(cal.getTime(), fdf.parse("2003-02-10T09:00:00.000 -0300")); cal.setTimeZone(TimeZone.getTimeZone("GMT+5")); cal.set(2003, Calendar.FEBRUARY, 10, 15, 5, 6); assertEquals(cal.getTime(), fdf.parse("2003-02-10T15:05:06.000 +0500")); }
From source file:com.clustercontrol.calendar.factory.SelectCalendar.java
public ArrayList<CalendarDetailInfo> getCalendarWeek(CalendarInfo info, Integer year, Integer month, Integer day) throws CalendarNotFound { m_log.trace("calendarId:" + info.getCalendarId() + ", year:" + year + ", month:" + month + ", day:" + day); long validFrom = info.getValidTimeFrom(); long validTo = info.getValidTimeTo(); ArrayList<CalendarDetailInfo> ret = new ArrayList<CalendarDetailInfo>(); Calendar startCalendar = HinemosTime.getCalendarInstance(); startCalendar.clear(); startCalendar.set(year, month - 1, day, 0, 0, 0); long startTime = startCalendar.getTimeInMillis(); Calendar endCalendar = HinemosTime.getCalendarInstance(); endCalendar.clear();//from w w w .j av a2 s .co m endCalendar.set(year, month - 1, day + 1, 0, 0, 0); long endTime = endCalendar.getTimeInMillis(); if (startTime <= validFrom && endTime <= validFrom) { return ret; } if (validTo <= startTime && validTo <= endTime) { return ret; } if (startTime < validFrom && validFrom < endTime) { CalendarDetailInfo detail = new CalendarDetailInfo(); detail.setTimeFrom(0 - TIMEZONE); detail.setTimeTo(validFrom - startTime - TIMEZONE); detail.setOperateFlg(false); detail.setOrderNo(-2);// ? m_log.trace("start<validfrom && validfrom<endttime add"); ret.add(detail); } if (startTime < validTo && validTo < endTime) { CalendarDetailInfo detail = new CalendarDetailInfo(); detail.setTimeFrom(validTo - startTime - TIMEZONE); detail.setTimeTo(HOUR24 - TIMEZONE); detail.setOperateFlg(false); detail.setOrderNo(-1);// ? m_log.trace("start<validto && validto<endttime add"); ret.add(detail); } // client?????CalendarDetailList??? // ????????? startCalendar.clear(); startCalendar.set(year, month - 1, day, 0, 0, 0); ArrayList<Date> checkDateList = new ArrayList<>(); int onesec = 1 * 1000; Long startLong = startCalendar.getTime().getTime(); ArrayList<CalendarDetailInfo> substituteList = new ArrayList<>(); for (CalendarDetailInfo detailInfo : info.getCalendarDetailList()) { int timezone = HinemosTime.getTimeZoneOffset(); // start_time checkDateList.add(new Date(startLong + detailInfo.getTimeFrom() + timezone)); checkDateList.add(new Date(startLong + detailInfo.getTimeFrom() - onesec + timezone));// 1second?? checkDateList.add(new Date(startLong + detailInfo.getTimeFrom() + onesec + timezone));// 1second? // end_time checkDateList.add(new Date(startLong + detailInfo.getTimeTo() + timezone)); checkDateList.add(new Date(startLong + detailInfo.getTimeTo() - onesec + timezone)); checkDateList.add(new Date(startLong + detailInfo.getTimeTo() + onesec + timezone)); if (detailInfo.isSubstituteFlg()) { // ????????? substituteList.add(detailInfo); } } // getDetail24??????? ArrayList<CalendarDetailInfo> detailList = new ArrayList<>(); for (CalendarDetailInfo detail : info.getCalendarDetailList()) { detailList.addAll(CalendarUtil.getDetail24(detail)); } for (CalendarDetailInfo detailInfo : detailList) { int timezone = HinemosTime.getTimeZoneOffset(); // start_time checkDateList.add(new Date(startLong + detailInfo.getTimeFrom() + timezone)); checkDateList.add(new Date(startLong + detailInfo.getTimeFrom() - onesec + timezone));// 1second?? checkDateList.add(new Date(startLong + detailInfo.getTimeFrom() + onesec + timezone));// 1second? // end_time checkDateList.add(new Date(startLong + detailInfo.getTimeTo() + timezone)); checkDateList.add(new Date(startLong + detailInfo.getTimeTo() - onesec + timezone)); checkDateList.add(new Date(startLong + detailInfo.getTimeTo() + onesec + timezone)); } // ????????????? ArrayList<Date> checkDateListSub = new ArrayList<>(); for (Date checkDate : checkDateList) { for (CalendarDetailInfo detailInfo : substituteList) { Long checkDateLong = checkDate.getTime(); checkDateListSub .add(new Date(checkDateLong - (CalendarUtil.parseDate(detailInfo.getSubstituteTime()) + HinemosTime.getTimeZoneOffset()))); } } checkDateList.addAll(checkDateListSub); // ?valid_time_from?valid_time_to checkDateList.add(new Date(info.getValidTimeFrom())); checkDateList.add(new Date(info.getValidTimeTo())); // list?????? checkDateList = new ArrayList<>(new HashSet<>(checkDateList)); // list? Collections.sort(checkDateList); m_log.trace("checkDateList.size:" + checkDateList.size()); ArrayList<CalendarDetailInfo> detailSubsList = new ArrayList<>(); for (Date targetDate : checkDateList) { Calendar targetCal = Calendar.getInstance(); targetCal.setTime(targetDate); // ???????????? if (startCalendar.get(Calendar.YEAR) != targetCal.get(Calendar.YEAR) || startCalendar.get(Calendar.MONTH) != targetCal.get(Calendar.MONTH) || startCalendar.get(Calendar.DATE) != targetCal.get(Calendar.DATE)) { continue; } m_log.trace("startCalendar:" + targetDate); ArrayList<CalendarDetailInfo> detailList2 = new ArrayList<>(); Date substituteDate = new Date(targetDate.getTime()); // detailList2????CalendarDetailInfo? Object[] retObjArr = CalendarUtil.getCalendarRunDetailInfo(info, targetDate, detailList2); boolean isrun = (Boolean) retObjArr[0]; // ?2?????? if (retObjArr.length == 2) { substituteDate.setTime(((Date) retObjArr[1]).getTime()); } m_log.trace("id:" + info.getCalendarId() + ", startCalendar:" + targetDate + ", detailList2.size:" + detailList2.size() + ", isrun:" + isrun + ", substituteDate:" + substituteDate.toString()); // ?CalendarDetailInfo????????????getDetail24????? for (CalendarDetailInfo detailInfo : detailList2) { ArrayList<CalendarDetailInfo> calendarDetailList = CalendarUtil.getDetail24(detailInfo); for (CalendarDetailInfo detail24 : calendarDetailList) { if (CalendarUtil.isRunByDetailDateTime(detail24, substituteDate) && !detailSubsList.contains(detail24)) { detailSubsList.add(detail24); m_log.trace("add to ret. orderNo:" + detail24.getOrderNo() + ", description:" + detail24.getDescription() + ", isOperation:" + detail24.isOperateFlg() + ", from:" + detail24.getTimeFrom() + ", to:" + detail24.getTimeTo()); } } } } ret.addAll(detailSubsList); Collections.sort(ret, new Comparator<CalendarDetailInfo>() { public int compare(CalendarDetailInfo obj0, CalendarDetailInfo obj1) { int order1 = obj0.getOrderNo(); int order2 = obj1.getOrderNo(); int ret = order1 - order2; return ret; } }); if (m_log.isDebugEnabled()) { for (CalendarDetailInfo detail : ret) { m_log.debug("detail=" + detail); } } m_log.trace("ret.size:" + ret.size()); return ret; }
From source file:org.apache.logging.log4j.core.util.datetime.FastDateParserTest.java
@Test public void testLang1121() throws ParseException { final TimeZone kst = TimeZone.getTimeZone("KST"); final DateParser fdp = getInstance("yyyyMMdd", kst, Locale.KOREA); try {/*from w w w . j ava 2s . c om*/ fdp.parse("2015"); Assert.fail("expected parse exception"); } catch (final ParseException pe) { // expected parse exception } // Wed Apr 29 00:00:00 KST 2015 Date actual = fdp.parse("20150429"); final Calendar cal = Calendar.getInstance(kst, Locale.KOREA); cal.clear(); cal.set(2015, 3, 29); Date expected = cal.getTime(); Assert.assertEquals(expected, actual); final SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd", Locale.KOREA); df.setTimeZone(kst); expected = df.parse("20150429113100"); // Thu Mar 16 00:00:00 KST 81724 actual = fdp.parse("20150429113100"); Assert.assertEquals(expected, actual); }
From source file:org.apache.axis2.databinding.utils.ConverterUtil.java
/** * Code from Axis1 code base Note - We only follow the convention in the latest schema spec * * @param source// w w w .ja v a 2s . c o m * @return Returns Calendar. */ public static Calendar convertToDateTime(String source) { if ((source == null) || source.trim().equals("")) { return null; } source = source.trim(); // the lexical representation of the date time as follows // '-'? yyyy '-' mm '-' dd 'T' hh ':' mm ':' ss ('.' s+)? (zzzzzz)? Date date = null; Calendar calendar = Calendar.getInstance(); calendar.clear(); calendar.setLenient(false); if (source.startsWith("-")) { source = source.substring(1); calendar.set(Calendar.ERA, GregorianCalendar.BC); } int year = 0; int month = 0; int day = 0; int hour = 0; int minite = 0; int second = 0; long miliSecond = 0; int timeZoneOffSet = TimeZone.getDefault().getRawOffset(); if ((source != null) && (source.length() >= 19)) { if ((source.charAt(4) != '-') || (source.charAt(7) != '-') || (source.charAt(10) != 'T') || (source.charAt(13) != ':') || (source.charAt(16) != ':')) { throw new RuntimeException("invalid date format (" + source + ") with out - s at correct place "); } year = Integer.parseInt(source.substring(0, 4)); month = Integer.parseInt(source.substring(5, 7)); day = Integer.parseInt(source.substring(8, 10)); hour = Integer.parseInt(source.substring(11, 13)); minite = Integer.parseInt(source.substring(14, 16)); second = Integer.parseInt(source.substring(17, 19)); int milliSecondPartLength = 0; if (source.length() > 19) { String rest = source.substring(19); if (rest.startsWith(".")) { // i.e this have the ('.'s+) part if (rest.endsWith("Z")) { // this is in gmt time zone timeZoneOffSet = 0; calendar.setTimeZone(TimeZone.getTimeZone("GMT")); miliSecond = Integer.parseInt(rest.substring(1, rest.lastIndexOf("Z"))); milliSecondPartLength = rest.substring(1, rest.lastIndexOf("Z")).trim().length(); } else if ((rest.lastIndexOf("+") > 0) || (rest.lastIndexOf("-") > 0)) { // this is given in a general time zione String timeOffSet = null; if (rest.lastIndexOf("+") > 0) { timeOffSet = rest.substring(rest.lastIndexOf("+") + 1); miliSecond = Integer.parseInt(rest.substring(1, rest.lastIndexOf("+"))); milliSecondPartLength = rest.substring(1, rest.lastIndexOf("+")).trim().length(); // we keep +1 or -1 to finally calculate the value timeZoneOffSet = 1; } else if (rest.lastIndexOf("-") > 0) { timeOffSet = rest.substring(rest.lastIndexOf("-") + 1); miliSecond = Integer.parseInt(rest.substring(1, rest.lastIndexOf("-"))); milliSecondPartLength = rest.substring(1, rest.lastIndexOf("-")).trim().length(); // we keep +1 or -1 to finally calculate the value timeZoneOffSet = -1; } if (timeOffSet.charAt(2) != ':') { throw new RuntimeException( "invalid time zone format (" + source + ") without : at correct place"); } int hours = Integer.parseInt(timeOffSet.substring(0, 2)); int minits = Integer.parseInt(timeOffSet.substring(3, 5)); timeZoneOffSet = ((hours * 60) + minits) * 60000 * timeZoneOffSet; } else { // i.e it does not have time zone miliSecond = Integer.parseInt(rest.substring(1)); milliSecondPartLength = rest.substring(1).trim().length(); } } else { if (rest.startsWith("Z")) { calendar.setTimeZone(TimeZone.getTimeZone("GMT")); // this is in gmt time zone timeZoneOffSet = 0; } else if (rest.startsWith("+") || rest.startsWith("-")) { // this is given in a general time zione if (rest.charAt(3) != ':') { throw new RuntimeException( "invalid time zone format (" + source + ") without : at correct place"); } int hours = Integer.parseInt(rest.substring(1, 3)); int minits = Integer.parseInt(rest.substring(4, 6)); timeZoneOffSet = ((hours * 60) + minits) * 60000; if (rest.startsWith("-")) { timeZoneOffSet = timeZoneOffSet * -1; } } else { throw new NumberFormatException("in valid time zone attribute"); } } } calendar.set(Calendar.YEAR, year); // xml month is started from 1 and calendar month is started from 0 calendar.set(Calendar.MONTH, month - 1); calendar.set(Calendar.DAY_OF_MONTH, day); calendar.set(Calendar.HOUR_OF_DAY, hour); calendar.set(Calendar.MINUTE, minite); calendar.set(Calendar.SECOND, second); if (milliSecondPartLength != 3) { // milisecond part represenst the fraction of the second so we have to // find the fraction and multiply it by 1000. So if milisecond part // has three digits nothing required miliSecond = miliSecond * 1000; for (int i = 0; i < milliSecondPartLength; i++) { miliSecond = miliSecond / 10; } } calendar.set(Calendar.MILLISECOND, (int) miliSecond); calendar.set(Calendar.ZONE_OFFSET, timeZoneOffSet); // set the day light offset only if the time zone is present if (source.length() > 19) { calendar.set(Calendar.DST_OFFSET, 0); } } else { throw new NumberFormatException("date string can not be less than 19 characters"); } return calendar; }
From source file:org.apache.logging.log4j.core.util.datetime.FastDateParserTest.java
@Test public void testAmPm() throws ParseException { final Calendar cal = Calendar.getInstance(NEW_YORK, Locale.US); cal.clear(); final DateParser h = getInstance("yyyy-MM-dd hh a mm:ss", NEW_YORK, Locale.US); final DateParser K = getInstance("yyyy-MM-dd KK a mm:ss", NEW_YORK, Locale.US); final DateParser k = getInstance("yyyy-MM-dd kk:mm:ss", NEW_YORK, Locale.US); final DateParser H = getInstance("yyyy-MM-dd HH:mm:ss", NEW_YORK, Locale.US); cal.set(2010, Calendar.AUGUST, 1, 0, 33, 20); assertEquals(cal.getTime(), h.parse("2010-08-01 12 AM 33:20")); assertEquals(cal.getTime(), K.parse("2010-08-01 0 AM 33:20")); assertEquals(cal.getTime(), k.parse("2010-08-01 00:33:20")); assertEquals(cal.getTime(), H.parse("2010-08-01 00:33:20")); cal.set(2010, Calendar.AUGUST, 1, 3, 33, 20); assertEquals(cal.getTime(), h.parse("2010-08-01 3 AM 33:20")); assertEquals(cal.getTime(), K.parse("2010-08-01 3 AM 33:20")); assertEquals(cal.getTime(), k.parse("2010-08-01 03:33:20")); assertEquals(cal.getTime(), H.parse("2010-08-01 03:33:20")); cal.set(2010, Calendar.AUGUST, 1, 15, 33, 20); assertEquals(cal.getTime(), h.parse("2010-08-01 3 PM 33:20")); assertEquals(cal.getTime(), K.parse("2010-08-01 3 PM 33:20")); assertEquals(cal.getTime(), k.parse("2010-08-01 15:33:20")); assertEquals(cal.getTime(), H.parse("2010-08-01 15:33:20")); cal.set(2010, Calendar.AUGUST, 1, 12, 33, 20); assertEquals(cal.getTime(), h.parse("2010-08-01 12 PM 33:20")); assertEquals(cal.getTime(), K.parse("2010-08-01 0 PM 33:20")); assertEquals(cal.getTime(), k.parse("2010-08-01 12:33:20")); assertEquals(cal.getTime(), H.parse("2010-08-01 12:33:20")); }
From source file:com.greenline.guahao.web.module.home.controllers.expert.FastOrderProcess.java
/** * ?/* w ww . j a va2s .c om*/ * * @return List<ValueTextVO> */ public List<ValueTextVO> getClinicDateScopeList() { List<ValueTextVO> list = new ArrayList<ValueTextVO>(); // ? Calendar now = Calendar.getInstance(); Calendar time = Calendar.getInstance(); time.clear(); time.set(Calendar.YEAR, now.get(Calendar.YEAR)); time.set(Calendar.MONTH, now.get(Calendar.MONTH)); time.set(Calendar.DAY_OF_YEAR, now.get(Calendar.DAY_OF_YEAR)); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd"); time.add(Calendar.DAY_OF_YEAR, 1); // StringBuffer scope0 = new StringBuffer(); StringBuffer scope1 = new StringBuffer(); StringBuffer scope2 = new StringBuffer(); StringBuffer value0 = new StringBuffer(); StringBuffer value1 = new StringBuffer(); StringBuffer value2 = new StringBuffer(); scope0.append(sdf.format(time.getTime())); value0.append(time.getTime().getTime()); scope0.append("-"); value0.append("-"); time.add(Calendar.DAY_OF_YEAR, 6); // scope0.append(sdf.format(time.getTime())); value0.append(time.getTime().getTime()); ValueTextVO vt0 = new ValueTextVO(); vt0.setValue(value0.toString()); vt0.setText(scope0.toString()); list.add(vt0); time.add(Calendar.DAY_OF_YEAR, 1); // scope1.append(sdf.format(time.getTime())); value1.append(time.getTime().getTime()); scope1.append("-"); value1.append("-"); time.add(Calendar.DAY_OF_YEAR, 6); // scope1.append(sdf.format(time.getTime())); value1.append(time.getTime().getTime()); // scope1 += "()"; ValueTextVO vt1 = new ValueTextVO(); vt1.setValue(value1.toString()); vt1.setText(scope1.toString()); list.add(vt1); time.add(Calendar.DAY_OF_YEAR, 1); // scope2.append(sdf.format(time.getTime())); value2.append(time.getTime().getTime()); scope2.append("??"); value2.append("-"); time.add(Calendar.DAY_OF_YEAR, 365);// 365 value2.append(time.getTime().getTime()); ValueTextVO vt2 = new ValueTextVO(); vt2.setValue(value2.toString()); vt2.setText(scope2.toString()); list.add(vt2); return list; }
From source file:org.kuali.kra.budget.summary.BudgetSummaryServiceImpl.java
public boolean isLeapDaysInPeriod(Date sDate, Date eDate) { Date leapDate;/* w w w. j a v a 2 s.com*/ int sYear = getYear(sDate); int eYear = getYear(eDate); if (isLeapYear(sDate)) { Calendar c1 = Calendar.getInstance(); c1.clear(); c1.set(sYear, 1, 29); leapDate = new java.sql.Date(c1.getTime().getTime()); // start date is before 2/29 & enddate >= 2/29 if (sDate.before(leapDate)) { if (eDate.compareTo(leapDate) >= 0) { return true; } } else if (sDate.equals(leapDate)) { return true; } } else if (isLeapYear(eDate)) { Calendar c1 = Calendar.getInstance(); c1.set(eYear, 1, 29); leapDate = new java.sql.Date(c1.getTime().getTime()); if (eDate.compareTo(leapDate) >= 0) { return true; } } else { sYear++; while (eYear > sYear) { if (isLeapYear(sYear)) { return true; } sYear++; } } return false; }
From source file:KitchenManagement.FoodDemandForecastingAndPlanning.FoodDemandForecastingAndPlanningBean.java
@Override public Boolean generatePurchaseOrderFromMaterialRequirement(Long storeId) { System.out.println("generatePurchaseOrderFromMaterialRequirement is called."); try {/* w w w . j av a2 s . c o m*/ StoreEntity store = em.find(StoreEntity.class, storeId); Query q = em.createQuery("select s from MonthScheduleEntity s"); List<MonthScheduleEntity> scheduleList = q.getResultList(); MonthScheduleEntity schedule = scheduleList.get(scheduleList.size() - 1); Calendar calendar = Calendar.getInstance(); calendar.clear(); calendar.set(Calendar.YEAR, schedule.getYear()); calendar.set(Calendar.MONTH, schedule.getMonth() - 1); Query q1 = em.createQuery("select rm from RawIngredientEntity rm"); List<RawIngredientEntity> rmList = (List<RawIngredientEntity>) q1.getResultList(); for (RawIngredientEntity rm : rmList) { Integer stockLevel = micBean.checkItemQty(store.getWarehouse().getId(), rm.getSKU()); Query q2 = em.createQuery( "select mr from MaterialRequirementEntity mr where mr.store.id = ?1 and mr.schedule.id = ?2 and mr.rawIngredient.SKU = ?3 order by mr.day") .setParameter(1, storeId).setParameter(2, schedule.getId()).setParameter(3, rm.getSKU()); List<MaterialRequirementEntity> mrList = (List<MaterialRequirementEntity>) q2.getResultList(); System.out.println("mrList.size()" + mrList.size()); for (MaterialRequirementEntity mr : mrList) { System.out.println("mr.getDay()" + mr.getDay()); if (stockLevel >= mr.getQuantity()) { stockLevel -= mr.getQuantity(); } else { Query q3 = em.createQuery( "select si from Supplier_ItemEntity si where si.supplier.regionalOffice.id = ?1 and si.item.SKU = ?2") .setParameter(1, store.getRegionalOffice().getId()).setParameter(2, rm.getSKU()); Supplier_ItemEntity supplier_ItemEntity = (Supplier_ItemEntity) q3.getSingleResult(); int lotsize = supplier_ItemEntity.getLotSize(); int purchaseQuantity = 0; if (((mr.getQuantity() - stockLevel) % lotsize) != 0) { purchaseQuantity = (((mr.getQuantity() - stockLevel) / lotsize) + 1) * lotsize; } else { purchaseQuantity = (((mr.getQuantity() - stockLevel) / lotsize)) * lotsize; } System.out.println("(mr.getQuantity() - stockLevel): " + (mr.getQuantity() - stockLevel) + "; lotsize: " + lotsize); System.out.println("purchaseQuantity: " + purchaseQuantity); calendar.set(Calendar.DAY_OF_MONTH, mr.getDay()); PurchaseOrderEntity purchaseOrder = purchaseBean.createPurchaseOrder( supplier_ItemEntity.getSupplier().getId(), store.getWarehouse().getId(), calendar.getTime()); purchaseBean.addLineItemToPurchaseOrder(purchaseOrder.getId(), rm.getSKU(), purchaseQuantity); stockLevel = stockLevel + purchaseQuantity - mr.getQuantity(); } } } return true; } catch (Exception ex) { ex.printStackTrace(); } return false; }
From source file:org.richfaces.component.UICalendar.java
public Date convertCurrentDate(String currentDateString) { Calendar calendar = Calendar.getInstance(); calendar.clear(); calendar.set(Calendar.DATE, 1); int idx = currentDateString.indexOf('/'); if (idx != -1) { calendar.set(Calendar.MONTH, Integer.parseInt(currentDateString.substring(0, idx)) - 1); calendar.set(Calendar.YEAR, Integer.parseInt(currentDateString.substring(idx + 1))); return calendar.getTime(); } else {/*from w w w . jav a 2s. c om*/ return null; } }