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指定日期的农历日期

2018-03-20 9页 doc 25KB 30阅读

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指定日期的农历日期指定日期的农历日期 import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Lunar { private int year; private int month; private int day; private boolean leap; final static String chineseNumb...
指定日期的农历日期
指定日期的农历日期 import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Lunar { private int year; private int month; private int day; private boolean leap; final static String chineseNumber[] = {"一", "二", "三", "四", "五", "六", "七", "八", " 九", "十", "十一", "十二"}; static SimpleDateFormat chineseDateFormat = new SimpleDateFormat("yyyy年MM 月dd日"); final static long[] lunarInfo = new long[] {0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2, 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977, 0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970, 0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, 0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0, 0x0a9a8, 0x0e950, 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0, 0x195a6, 0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, 0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0, 0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930, 0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0}; //====== 传回农历 y年的总天数 final private static int yearDays(int y) { int i, sum = 348; for (i = 0x8000; i > 0x8; i >>= 1) { if ((lunarInfo[y - 1900] & i) != 0) sum += 1; } return (sum + leapDays(y)); } //====== 传回农历 y年闰月的天数 final private static int leapDays(int y) { if (leapMonth(y) != 0) { if ((lunarInfo[y - 1900] & 0x10000) != 0) return 30; else return 29; } else return 0; } //====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0 final private static int leapMonth(int y) { return (int) (lunarInfo[y - 1900] & 0xf); } //====== 传回农历 y年m月的总天数 final private static int monthDays(int y, int m) { if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0) return 29; else return 30; } //====== 传回农历 y年的生肖 final public String animalsYear() { final String[] Animals = new String[]{"鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪"}; return Animals[(year - 4) % 12]; } //====== 传入 月日的offset 传回干支, 0=甲子 final private static String cyclicalm(int num) { final String[] Gan = new String[]{"甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"}; final String[] Zhi = new String[]{"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", " 酉", "戌", "亥"}; return (Gan[num % 10] + Zhi[num % 12]); } //====== 传入 offset 传回干支, 0=甲子 final public String cyclical() { int num = year - 1900 + 36; return (cyclicalm(num)); } /** * 传出y年m月d日对应的农历. * yearCyl3:农历年与1864的相差数 ? * monCyl4:从1900年1月31日以来,闰月数 * dayCyl5:与1900年1月31日相差的天数,再加40 ? * @param cal * @return */ public Lunar(Calendar cal) { int yearCyl, monCyl, dayCyl; int leapMonth = 0; Date baseDate = null; try { baseDate = chineseDateFormat.parse("1900年1月31日"); } catch (ParseException e) { e.printStackTrace(); //To change body of catch statement use Options | File Templates. } //求出和1900年1月31日相差的天数 int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L); dayCyl = offset + 40; monCyl = 14; //用offset减去每农历年的天数 // 计算当天是农历第几天 //i最终结果是农历的年份 //offset是当年的第几天 int iYear, daysOfYear = 0; for (iYear = 1900; iYear < 2050 && offset > 0; iYear++) { daysOfYear = yearDays(iYear); offset -= daysOfYear; monCyl += 12; } if (offset < 0) { offset += daysOfYear; iYear--; monCyl -= 12; } //农历年份 year = iYear; yearCyl = iYear - 1864; leapMonth = leapMonth(iYear); //闰哪个月,1-12 leap = false; //用当年的天数offset,逐个减去每月(农历)的天数,求出当天是本月的第几天 int iMonth, daysOfMonth = 0; for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++) { //闰月 if (leapMonth > 0 && iMonth == (leapMonth + 1) && !leap) { --iMonth; leap = true; daysOfMonth = leapDays(year); } else daysOfMonth = monthDays(year, iMonth); offset -= daysOfMonth; //解除闰月 if (leap && iMonth == (leapMonth + 1)) leap = false; if (!leap) monCyl++; } //offset为0时,并且刚才计算的月份是闰月,要校正 if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1) { if (leap) { leap = false; } else { leap = true; --iMonth; --monCyl; } } //offset小于0时,也要校正 if (offset < 0) { offset += daysOfMonth; --iMonth; --monCyl; } month = iMonth; day = offset + 1; } public static String getChinaDayString(int day) { String chineseTen[] = {"初", "十", "廿", "卅"}; int n = day % 10 == 0 ? 9 : day % 10 - 1; if (day > 30) return ""; if (day == 10) return "初十"; else return chineseTen[day / 10] + chineseNumber[n]; } public String toString() { return year + "年" + (leap ? "闰" : "") + chineseNumber[month - 1] + "月" + getChinaDayString(day); } public static void main(String[] args) throws ParseException { Calendar today = Calendar.getInstance(); today.setTime(chineseDateFormat.parse("2003年12月17日")); Lunar lunar = new Lunar(today); System.out.println("北京时间:" + chineseDateFormat.format(today.getTime()) + " 农历" + lunar); } }
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