java获得指定日期的前一天，后一天的代码，java日期,/*** 获得指定日期的

java获得指定日期的前一天，后一天的代码，java日期,/*** 获得指定日期的

/*** 获得指定日期的前一天* @param specifiedDay* @return* @throws Exception*/public static String getSpecifiedDayBefore(String specifiedDay){//SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");Calendar c = Calendar.getInstance();Date date=null;try {date = new SimpleDateFormat("yy-MM-dd").parse(specifiedDay);} catch (ParseException e) {e.printStackTrace();}c.setTime(date);int day=c.get(Calendar.DATE);c.set(Calendar.DATE,day-1);String dayBefore=new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());return dayBefore;}/*** 获得指定日期的后一天* @param specifiedDay* @return*/public static String getSpecifiedDayAfter(String specifiedDay){Calendar c = Calendar.getInstance();Date date=null;try {date = new SimpleDateFormat("yy-MM-dd").parse(specifiedDay);} catch (ParseException e) {e.printStackTrace();}c.setTime(date);int day=c.get(Calendar.DATE);c.set(Calendar.DATE,day+1);String dayAfter=new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());return dayAfter;}