android 获取指定月份的开始时间 结束时间

/*** 根据提供的年月日获取该月份的第一天* @Description: (这里用一句话描述这个方法的作用)* @Author: gyz* @Since: -1-9下午2:26:57* @param date** @return*/public static String getSupportBeginDayofMonth(Date date) {date.getTime();Calendar startDate = Calendar.getInstance();startDate.setTime(date);startDate.set(Calendar.DAY_OF_MONTH, 1);startDate.set(Calendar.HOUR_OF_DAY, 0);startDate.set(Calendar.MINUTE, 0);startDate.set(Calendar.SECOND, 0);startDate.set(Calendar.MILLISECOND, 0);Date firstDate = startDate.getTime();return (firstDate.getTime()+"").substring(0,10);}/*** 根据提供的年月获取该月份的最后一天* @Description: (这里用一句话描述这个方法的作用)* @Author: gyz* @Since: -1-9下午2:29:38* @param date* @return*/public static String getSupportEndDayofMonth(Date date) {Calendar startDate = Calendar.getInstance();startDate.setTime(date);startDate.set(Calendar.DAY_OF_MONTH, startDate.getActualMaximum(Calendar.DAY_OF_MONTH));startDate.set(Calendar.HOUR_OF_DAY, 23);startDate.set(Calendar.MINUTE, 59);startDate.set(Calendar.SECOND, 59);startDate.set(Calendar.MILLISECOND, 999);Date firstDate = startDate.getTime();return (firstDate.getTime()+"").substring(0,10);}/*** 当天的开始时间* @return*/public static long startOfTodDay() {Calendar calendar = Calendar.getInstance();calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date=calendar.getTime();return date.getTime();}/*** 当天的结束时间* @return*/public static long endOfTodDay() {Calendar calendar = Calendar.getInstance();calendar.set(Calendar.HOUR_OF_DAY, 23);calendar.set(Calendar.MINUTE, 59);calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MILLISECOND, 999);Date date=calendar.getTime();return date.getTime();}