日历 农历算法

东郭自珍
2023-12-01
package com.microdu.common;


/**
 * ChineseCalendarGB.java Copyright (c) 1997-2002 by Dr. Herong Yang 中国农历算法 -
 * 实用于公历 1901 年至 2100 年之间的 200 年
 */
public class CalendarUtil {
        private int gregorianYear;
        private int gregorianMonth;
        private int gregorianDate;
        private boolean isGregorianLeap;
        private int dayOfYear;
        private int dayOfWeek; // 周日一星期的第一天
        private int chineseYear;
        private int chineseMonth; // 负数表示闰月
        private int chineseDate;
        private int sectionalTerm;
        private int principleTerm;
        private static char[] daysInGregorianMonth = { 31, 28, 31, 30, 31, 30, 31,
                        31, 30, 31, 30, 31 };
        private static String[] stemNames = { "甲", "乙", "丙", "丁", "戊", "己", "庚",
                        "辛", "壬", "癸" };
        private static String[] branchNames = { "子", "丑", "寅", "卯", "辰", "巳", "午",
                        "未", "申", "酉", "戌", "亥" };
        private static String[] animalNames = { "鼠", "牛", "虎", "兔", "龙", "蛇", "马",
                        "羊", "猴", "鸡", "狗", "猪" };

        public static final String[] daysOfMonth = { "1", "2", "3", "4", "5", "6",
                        "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17",
                        "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28",
                        "29", "30", "31" };

        private String monthOfAlmanac[] = {"正月","二月","三月","四月","五月","六月","七月","八月","九月","十月","冬月","腊月"};
        private String daysOfAlmanac[] = { "初一", "初二", "初三", "初四", "初五", "初六",
                        "初七", "初八", "初九", "初十", "十一", "十二", "十三", "十四", "十五", "十六", "十七",
                        "十八", "十九", "二十", "廿一", "廿二", "廿三", "廿四", "廿五", "廿六", "廿七", "廿八",
                        "廿九", "三十" }; // 农历的天数

        public CalendarUtil() {
                setGregorian(1901, 1, 1);
        }

        /**
         * 得到对应天的农历 要判断闰月 月初 月末         * 
         * @param y
         * @param m
         * @param d
         * @return String
         */
        public String getChineseDay(int y, int m, int d) {

                CalendarUtil c = new CalendarUtil();

                c.setGregorian(y, m, d);
                c.computeChineseFields();
                c.computeSolarTerms();

                int cd = c.getChineseDate();

                return daysOfAlmanac[cd - 1];
        }

        /**
     *  得到对应天的农历
     *  要判断闰月 月初 月末
     * @param y
     * @param m
     * @param d
     * @return
     */
        public String getChineseMonth(int y, int m, int d) {
                setGregorian(y,m,d);
                computeChineseFields();
                computeSolarTerms();
                
                int cd = getChineseMonth();
                if(cd < 1 || cd > 29)
                        cd = 1;
                return monthOfAlmanac[cd -1];
        }
        
        public void setGregorian(int y, int m, int d) {
                gregorianYear = y;
                gregorianMonth = m;
                gregorianDate = d;
                isGregorianLeap = isGregorianLeapYear(y);
                dayOfYear = dayOfYear(y, m, d);
                dayOfWeek = dayOfWeek(y, m, d);
                chineseYear = 0;
                chineseMonth = 0;
                chineseDate = 0;
                sectionalTerm = 0;
                principleTerm = 0;
        }

        // 判断是否是闰年
        public static boolean isGregorianLeapYear(int year) {
                boolean isLeap = false;
                if (year % 4 == 0)
                        isLeap = true;
                if (year % 100 == 0)
                        isLeap = false;
                if (year % 400 == 0)
                        isLeap = true;
                return isLeap;
        }

        // 返回一个月有几天
        public static int daysInGregorianMonth(int y, int m) {
                int d = daysInGregorianMonth[m - 1];
                if (m == 2 && isGregorianLeapYear(y))
                        d++; // 公历闰年二月多一天
                return d;
        }

        // 计算当前天在本年中是第几天
        public static int dayOfYear(int y, int m, int d) {
                int c = 0;
                for (int i = 1; i < m; i++) {
                        c = c + daysInGregorianMonth(y, i);
                }
                c = c + d;
                return c;
        }

        // 当前天是本周的第几天 , 从星期天开始算
        public static int dayOfWeek(int y, int m, int d) {
                int w = 1; // 公历一年一月一日是星期一,所以起始值为星期日
                y = (y - 1) % 400 + 1; // 公历星期值分部 400 年循环一次
                int ly = (y - 1) / 4; // 闰年次数
                ly = ly - (y - 1) / 100;
                ly = ly + (y - 1) / 400;
                int ry = y - 1 - ly; // 常年次数
                w = w + ry; // 常年星期值增一
                w = w + 2 * ly; // 闰年星期值增二
                w = w + dayOfYear(y, m, d);
                w = (w - 1) % 7 + 1;
                return w;
        }

        // 农历月份大小压缩表,两个字节表示一年。两个字节共十六个二进制位数,
        // 前四个位数表示闰月月份,后十二个位数表示十二个农历月份的大小。
        private static char[] chineseMonths = { 0x00, 0x04, 0xad, 0x08, 0x5a, 0x01,
                        0xd5, 0x54, 0xb4, 0x09, 0x64, 0x05, 0x59, 0x45, 0x95, 0x0a, 0xa6,
                        0x04, 0x55, 0x24, 0xad, 0x08, 0x5a, 0x62, 0xda, 0x04, 0xb4, 0x05,
                        0xb4, 0x55, 0x52, 0x0d, 0x94, 0x0a, 0x4a, 0x2a, 0x56, 0x02, 0x6d,
                        0x71, 0x6d, 0x01, 0xda, 0x02, 0xd2, 0x52, 0xa9, 0x05, 0x49, 0x0d,
                        0x2a, 0x45, 0x2b, 0x09, 0x56, 0x01, 0xb5, 0x20, 0x6d, 0x01, 0x59,
                        0x69, 0xd4, 0x0a, 0xa8, 0x05, 0xa9, 0x56, 0xa5, 0x04, 0x2b, 0x09,
                        0x9e, 0x38, 0xb6, 0x08, 0xec, 0x74, 0x6c, 0x05, 0xd4, 0x0a, 0xe4,
                        0x6a, 0x52, 0x05, 0x95, 0x0a, 0x5a, 0x42, 0x5b, 0x04, 0xb6, 0x04,
                        0xb4, 0x22, 0x6a, 0x05, 0x52, 0x75, 0xc9, 0x0a, 0x52, 0x05, 0x35,
                        0x55, 0x4d, 0x0a, 0x5a, 0x02, 0x5d, 0x31, 0xb5, 0x02, 0x6a, 0x8a,
                        0x68, 0x05, 0xa9, 0x0a, 0x8a, 0x6a, 0x2a, 0x05, 0x2d, 0x09, 0xaa,
                        0x48, 0x5a, 0x01, 0xb5, 0x09, 0xb0, 0x39, 0x64, 0x05, 0x25, 0x75,
                        0x95, 0x0a, 0x96, 0x04, 0x4d, 0x54, 0xad, 0x04, 0xda, 0x04, 0xd4,
                        0x44, 0xb4, 0x05, 0x54, 0x85, 0x52, 0x0d, 0x92, 0x0a, 0x56, 0x6a,
                        0x56, 0x02, 0x6d, 0x02, 0x6a, 0x41, 0xda, 0x02, 0xb2, 0xa1, 0xa9,
                        0x05, 0x49, 0x0d, 0x0a, 0x6d, 0x2a, 0x09, 0x56, 0x01, 0xad, 0x50,
                        0x6d, 0x01, 0xd9, 0x02, 0xd1, 0x3a, 0xa8, 0x05, 0x29, 0x85, 0xa5,
                        0x0c, 0x2a, 0x09, 0x96, 0x54, 0xb6, 0x08, 0x6c, 0x09, 0x64, 0x45,
                        0xd4, 0x0a, 0xa4, 0x05, 0x51, 0x25, 0x95, 0x0a, 0x2a, 0x72, 0x5b,
                        0x04, 0xb6, 0x04, 0xac, 0x52, 0x6a, 0x05, 0xd2, 0x0a, 0xa2, 0x4a,
                        0x4a, 0x05, 0x55, 0x94, 0x2d, 0x0a, 0x5a, 0x02, 0x75, 0x61, 0xb5,
                        0x02, 0x6a, 0x03, 0x61, 0x45, 0xa9, 0x0a, 0x4a, 0x05, 0x25, 0x25,
                        0x2d, 0x09, 0x9a, 0x68, 0xda, 0x08, 0xb4, 0x09, 0xa8, 0x59, 0x54,
                        0x03, 0xa5, 0x0a, 0x91, 0x3a, 0x96, 0x04, 0xad, 0xb0, 0xad, 0x04,
                        0xda, 0x04, 0xf4, 0x62, 0xb4, 0x05, 0x54, 0x0b, 0x44, 0x5d, 0x52,
                        0x0a, 0x95, 0x04, 0x55, 0x22, 0x6d, 0x02, 0x5a, 0x71, 0xda, 0x02,
                        0xaa, 0x05, 0xb2, 0x55, 0x49, 0x0b, 0x4a, 0x0a, 0x2d, 0x39, 0x36,
                        0x01, 0x6d, 0x80, 0x6d, 0x01, 0xd9, 0x02, 0xe9, 0x6a, 0xa8, 0x05,
                        0x29, 0x0b, 0x9a, 0x4c, 0xaa, 0x08, 0xb6, 0x08, 0xb4, 0x38, 0x6c,
                        0x09, 0x54, 0x75, 0xd4, 0x0a, 0xa4, 0x05, 0x45, 0x55, 0x95, 0x0a,
                        0x9a, 0x04, 0x55, 0x44, 0xb5, 0x04, 0x6a, 0x82, 0x6a, 0x05, 0xd2,
                        0x0a, 0x92, 0x6a, 0x4a, 0x05, 0x55, 0x0a, 0x2a, 0x4a, 0x5a, 0x02,
                        0xb5, 0x02, 0xb2, 0x31, 0x69, 0x03, 0x31, 0x73, 0xa9, 0x0a, 0x4a,
                        0x05, 0x2d, 0x55, 0x2d, 0x09, 0x5a, 0x01, 0xd5, 0x48, 0xb4, 0x09,
                        0x68, 0x89, 0x54, 0x0b, 0xa4, 0x0a, 0xa5, 0x6a, 0x95, 0x04, 0xad,
                        0x08, 0x6a, 0x44, 0xda, 0x04, 0x74, 0x05, 0xb0, 0x25, 0x54, 0x03 };

        // 初始日,公历农历对应日期:
        // 公历 1901 年 1 月 1 日,对应农历 4598 年 11 月 11 日
        private static int baseYear = 1901;
        private static int baseMonth = 1;
        private static int baseDate = 1;
        private static int baseIndex = 0;
        private static int baseChineseYear = 4598 - 1;
        private static int baseChineseMonth = 11;
        private static int baseChineseDate = 11;

        public int computeChineseFields() {
                if (gregorianYear < 1901 || gregorianYear > 2100)
                        return 1;
                int startYear = baseYear;
                int startMonth = baseMonth;
                int startDate = baseDate;
                chineseYear = baseChineseYear;
                chineseMonth = baseChineseMonth;
                chineseDate = baseChineseDate;
                // 第二个对应日,用以提高计算效率
                // 公历 2000 年 1 月 1 日,对应农历 4697 年 11 月 25 日
                if (gregorianYear >= 2000) {
                        startYear = baseYear + 99;
                        startMonth = 1;
                        startDate = 1;
                        chineseYear = baseChineseYear + 99;
                        chineseMonth = 11;
                        chineseDate = 25;
                }
                int daysDiff = 0;
                for (int i = startYear; i < gregorianYear; i++) {
                        daysDiff += 365;
                        if (isGregorianLeapYear(i))
                                daysDiff += 1; // leap year
                }
                for (int i = startMonth; i < gregorianMonth; i++) {
                        daysDiff += daysInGregorianMonth(gregorianYear, i);
                }
                daysDiff += gregorianDate - startDate;

                chineseDate += daysDiff;
                int lastDate = daysInChineseMonth(chineseYear, chineseMonth);
                int nextMonth = nextChineseMonth(chineseYear, chineseMonth);
                while (chineseDate > lastDate) {
                        if (Math.abs(nextMonth) < Math.abs(chineseMonth))
                                chineseYear++;
                        chineseMonth = nextMonth;
                        chineseDate -= lastDate;
                        lastDate = daysInChineseMonth(chineseYear, chineseMonth);
                        nextMonth = nextChineseMonth(chineseYear, chineseMonth);
                }
                return 0;
        }

        private static int[] bigLeapMonthYears = {
                        // 大闰月的闰年年份
                        6, 14, 19, 25, 33, 36, 38, 41, 44, 52, 55, 79, 117, 136, 147, 150,
                        155, 158, 185, 193 };

        public static int daysInChineseMonth(int y, int m) {
                // 注意:闰月 m < 0
                int index = y - baseChineseYear + baseIndex;
                int v = 0;
                int l = 0;
                int d = 30;
                if (1 <= m && m <= 8) {
                        v = chineseMonths[2 * index];
                        l = m - 1;
                        if (((v >> l) & 0x01) == 1)
                                d = 29;
                } else if (9 <= m && m <= 12) {
                        v = chineseMonths[2 * index + 1];
                        l = m - 9;
                        if (((v >> l) & 0x01) == 1)
                                d = 29;
                } else {
                        v = chineseMonths[2 * index + 1];
                        v = (v >> 4) & 0x0F;
                        if (v != Math.abs(m)) {
                                d = 0;
                        } else {
                                d = 29;
                                for (int i = 0; i < bigLeapMonthYears.length; i++) {
                                        if (bigLeapMonthYears[i] == index) {
                                                d = 30;
                                                break;
                                        }
                                }
                        }
                }
                return d;
        }

        public static int nextChineseMonth(int y, int m) {
                int n = Math.abs(m) + 1;
                if (m > 0) {
                        int index = y - baseChineseYear + baseIndex;
                        int v = chineseMonths[2 * index + 1];
                        v = (v >> 4) & 0x0F;
                        if (v == m)
                                n = -m;
                }
                if (n == 13)
                        n = 1;
                return n;
        }

        private static char[][] sectionalTermMap = {
                        { 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 6, 6, 6, 5, 5, 6, 6, 5, 5, 5, 5, 5,
                                        5, 5, 5, 4, 5, 5 },
                        { 5, 4, 5, 5, 5, 4, 4, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 3,
                                        3, 4, 4, 3, 3, 3 },
                        { 6, 6, 6, 7, 6, 6, 6, 6, 5, 6, 6, 6, 5, 5, 6, 6, 5, 5, 5, 6, 5, 5,
                                        5, 5, 4, 5, 5, 5, 5 },
                        { 5, 5, 6, 6, 5, 5, 5, 6, 5, 5, 5, 5, 4, 5, 5, 5, 4, 4, 5, 5, 4, 4,
                                        4, 5, 4, 4, 4, 4, 5 },
                        { 6, 6, 6, 7, 6, 6, 6, 6, 5, 6, 6, 6, 5, 5, 6, 6, 5, 5, 5, 6, 5, 5,
                                        5, 5, 4, 5, 5, 5, 5 },
                        { 6, 6, 7, 7, 6, 6, 6, 7, 6, 6, 6, 6, 5, 6, 6, 6, 5, 5, 6, 6, 5, 5,
                                        5, 6, 5, 5, 5, 5, 4, 5, 5, 5, 5 },
                        { 7, 8, 8, 8, 7, 7, 8, 8, 7, 7, 7, 8, 7, 7, 7, 7, 6, 7, 7, 7, 6, 6,
                                        7, 7, 6, 6, 6, 7, 7 },
                        { 8, 8, 8, 9, 8, 8, 8, 8, 7, 8, 8, 8, 7, 7, 8, 8, 7, 7, 7, 8, 7, 7,
                                        7, 7, 6, 7, 7, 7, 6, 6, 7, 7, 7 },
                        { 8, 8, 8, 9, 8, 8, 8, 8, 7, 8, 8, 8, 7, 7, 8, 8, 7, 7, 7, 8, 7, 7,
                                        7, 7, 6, 7, 7, 7, 7 },
                        { 9, 9, 9, 9, 8, 9, 9, 9, 8, 8, 9, 9, 8, 8, 8, 9, 8, 8, 8, 8, 7, 8,
                                        8, 8, 7, 7, 8, 8, 8 },
                        { 8, 8, 8, 8, 7, 8, 8, 8, 7, 7, 8, 8, 7, 7, 7, 8, 7, 7, 7, 7, 6, 7,
                                        7, 7, 6, 6, 7, 7, 7 },
                        { 7, 8, 8, 8, 7, 7, 8, 8, 7, 7, 7, 8, 7, 7, 7, 7, 6, 7, 7, 7, 6, 6,
                                        7, 7, 6, 6, 6, 7, 7 } };
        private static char[][] sectionalTermYear = {
                        { 13, 49, 85, 117, 149, 185, 201, 250, 250 },
                        { 13, 45, 81, 117, 149, 185, 201, 250, 250 },
                        { 13, 48, 84, 112, 148, 184, 200, 201, 250 },
                        { 13, 45, 76, 108, 140, 172, 200, 201, 250 },
                        { 13, 44, 72, 104, 132, 168, 200, 201, 250 },
                        { 5, 33, 68, 96, 124, 152, 188, 200, 201 },
                        { 29, 57, 85, 120, 148, 176, 200, 201, 250 },
                        { 13, 48, 76, 104, 132, 168, 196, 200, 201 },
                        { 25, 60, 88, 120, 148, 184, 200, 201, 250 },
                        { 16, 44, 76, 108, 144, 172, 200, 201, 250 },
                        { 28, 60, 92, 124, 160, 192, 200, 201, 250 },
                        { 17, 53, 85, 124, 156, 188, 200, 201, 250 } };
        private static char[][] principleTermMap = {
                        { 21, 21, 21, 21, 21, 20, 21, 21, 21, 20, 20, 21, 21, 20, 20, 20,
                                        20, 20, 20, 20, 20, 19, 20, 20, 20, 19, 19, 20 },
                        { 20, 19, 19, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 18, 19, 19,
                                        19, 18, 18, 19, 19, 18, 18, 18, 18, 18, 18, 18 },
                        { 21, 21, 21, 22, 21, 21, 21, 21, 20, 21, 21, 21, 20, 20, 21, 21,
                                        20, 20, 20, 21, 20, 20, 20, 20, 19, 20, 20, 20, 20 },
                        { 20, 21, 21, 21, 20, 20, 21, 21, 20, 20, 20, 21, 20, 20, 20, 20,
                                        19, 20, 20, 20, 19, 19, 20, 20, 19, 19, 19, 20, 20 },
                        { 21, 22, 22, 22, 21, 21, 22, 22, 21, 21, 21, 22, 21, 21, 21, 21,
                                        20, 21, 21, 21, 20, 20, 21, 21, 20, 20, 20, 21, 21 },
                        { 22, 22, 22, 22, 21, 22, 22, 22, 21, 21, 22, 22, 21, 21, 21, 22,
                                        21, 21, 21, 21, 20, 21, 21, 21, 20, 20, 21, 21, 21 },
                        { 23, 23, 24, 24, 23, 23, 23, 24, 23, 23, 23, 23, 22, 23, 23, 23,
                                        22, 22, 23, 23, 22, 22, 22, 23, 22, 22, 22, 22, 23 },
                        { 23, 24, 24, 24, 23, 23, 24, 24, 23, 23, 23, 24, 23, 23, 23, 23,
                                        22, 23, 23, 23, 22, 22, 23, 23, 22, 22, 22, 23, 23 },
                        { 23, 24, 24, 24, 23, 23, 24, 24, 23, 23, 23, 24, 23, 23, 23, 23,
                                        22, 23, 23, 23, 22, 22, 23, 23, 22, 22, 22, 23, 23 },
                        { 24, 24, 24, 24, 23, 24, 24, 24, 23, 23, 24, 24, 23, 23, 23, 24,
                                        23, 23, 23, 23, 22, 23, 23, 23, 22, 22, 23, 23, 23 },
                        { 23, 23, 23, 23, 22, 23, 23, 23, 22, 22, 23, 23, 22, 22, 22, 23,
                                        22, 22, 22, 22, 21, 22, 22, 22, 21, 21, 22, 22, 22 },
                        { 22, 22, 23, 23, 22, 22, 22, 23, 22, 22, 22, 22, 21, 22, 22, 22,
                                        21, 21, 22, 22, 21, 21, 21, 22, 21, 21, 21, 21, 22 } };
        private static char[][] principleTermYear = {
                        { 13, 45, 81, 113, 149, 185, 201 },
                        { 21, 57, 93, 125, 161, 193, 201 },
                        { 21, 56, 88, 120, 152, 188, 200, 201 },
                        { 21, 49, 81, 116, 144, 176, 200, 201 },
                        { 17, 49, 77, 112, 140, 168, 200, 201 },
                        { 28, 60, 88, 116, 148, 180, 200, 201 },
                        { 25, 53, 84, 112, 144, 172, 200, 201 },
                        { 29, 57, 89, 120, 148, 180, 200, 201 },
                        { 17, 45, 73, 108, 140, 168, 200, 201 },
                        { 28, 60, 92, 124, 160, 192, 200, 201 },
                        { 16, 44, 80, 112, 148, 180, 200, 201 },
                        { 17, 53, 88, 120, 156, 188, 200, 201 } };

        public int computeSolarTerms() {
                if (gregorianYear < 1901 || gregorianYear > 2100)
                        return 1;
                sectionalTerm = sectionalTerm(gregorianYear, gregorianMonth);
                principleTerm = principleTerm(gregorianYear, gregorianMonth);
                return 0;
        }

        public static int sectionalTerm(int y, int m) {
                if (y < 1901 || y > 2100)
                        return 0;
                int index = 0;
                int ry = y - baseYear + 1;
                while (ry >= sectionalTermYear[m - 1][index])
                        index++;
                int term = sectionalTermMap[m - 1][4 * index + ry % 4];
                if ((ry == 121) && (m == 4))
                        term = 5;
                if ((ry == 132) && (m == 4))
                        term = 5;
                if ((ry == 194) && (m == 6))
                        term = 6;
                return term;
        }

        public static int principleTerm(int y, int m) {
                if (y < 1901 || y > 2100)
                        return 0;
                int index = 0;
                int ry = y - baseYear + 1;
                while (ry >= principleTermYear[m - 1][index])
                        index++;
                int term = principleTermMap[m - 1][4 * index + ry % 4];
                if ((ry == 171) && (m == 3))
                        term = 21;
                if ((ry == 181) && (m == 5))
                        term = 21;
                return term;
        }

        public String toString() {
                StringBuffer buf = new StringBuffer();
                buf.append("Gregorian Year: " + gregorianYear + "\n");
                buf.append("Gregorian Month: " + gregorianMonth + "\n");
                buf.append("Gregorian Date: " + gregorianDate + "\n");
                buf.append("Is Leap Year: " + isGregorianLeap + "\n");
                buf.append("Day of Year: " + dayOfYear + "\n");
                buf.append("Day of Week: " + dayOfWeek + "\n");
                buf.append("Chinese Year: " + chineseYear + "\n");
                buf.append("Heavenly Stem: " + ((chineseYear - 1) % 10) + "\n");
                buf.append("Earthly Branch: " + ((chineseYear - 1) % 12) + "\n");
                buf.append("Chinese Month: " + chineseMonth + "\n");
                buf.append("Chinese Date: " + chineseDate + "\n");
                buf.append("Sectional Term: " + sectionalTerm + "\n");
                buf.append("Principle Term: " + principleTerm + "\n");
                return buf.toString();
        }

        public String[] getYearTable() {
                setGregorian(gregorianYear, 1, 1);
                computeChineseFields();
                computeSolarTerms();
                String[] table = new String[58]; // 6*9 + 4
                table[0] = getTextLine(27, "公历年历:" + gregorianYear);
                table[1] = getTextLine(27, "农历年历:" + (chineseYear + 1) + " ("
                                + stemNames[(chineseYear + 1 - 1) % 10]
                                + branchNames[(chineseYear + 1 - 1) % 12] + " - "
                                + animalNames[(chineseYear + 1 - 1) % 12] + "年)");
                int ln = 2;
                String blank = "                                         " + "  "
                                + "                                         ";
                String[] mLeft = null;
                String[] mRight = null;
                for (int i = 1; i <= 6; i++) {
                        table[ln] = blank;
                        ln++;
                        mLeft = getMonthTable();
                        mRight = getMonthTable();
                        for (int j = 0; j < mLeft.length; j++) {
                                String line = mLeft[j] + "  " + mRight[j];
                                table[ln] = line;
                                ln++;
                        }
                }
                table[ln] = blank;
                ln++;
                table[ln] = getTextLine(0, "##/## - 公历日期/农历日期,(*)#月 - (闰)农历月第一天");
                ln++;
                return table;
        }

        public static String getTextLine(int s, String t) {
                String str = "                                         " + "  "
                                + "                                         ";
                if (t != null && s < str.length() && s + t.length() < str.length())
                        str = str.substring(0, s) + t + str.substring(s + t.length());
                return str;
        }

        private static String[] monthNames = { "一", "二", "三", "四", "五", "六", "七",
                        "八", "九", "十", "十一", "十二" };

        public String[] getMonthTable() {
                setGregorian(gregorianYear, gregorianMonth, 1);
                computeChineseFields();
                computeSolarTerms();
                String[] table = new String[8];
                String title = null;
                if (gregorianMonth < 11)
                        title = "                   ";
                else
                        title = "                 ";
                title = title + monthNames[gregorianMonth - 1] + "月"
                                + "                   ";
                String header = "   日    一    二    三    四    五    六 ";
                String blank = "                                          ";
                table[0] = title;
                table[1] = header;
                int wk = 2;
                String line = "";
                for (int i = 1; i < dayOfWeek; i++) {
                        line += "     " + ' ';
                }
                int days = daysInGregorianMonth(gregorianYear, gregorianMonth);
                for (int i = gregorianDate; i <= days; i++) {
                        line += getDateString() + ' ';
                        rollUpOneDay();
                        if (dayOfWeek == 1) {
                                table[wk] = line;
                                line = "";
                                wk++;
                        }
                }
                for (int i = dayOfWeek; i <= 7; i++) {
                        line += "     " + ' ';
                }
                table[wk] = line;
                for (int i = wk + 1; i < table.length; i++) {
                        table[i] = blank;
                }
                for (int i = 0; i < table.length; i++) {
                        table[i] = table[i].substring(0, table[i].length() - 1);
                }

                return table;
        }

        private static String[] chineseMonthNames = { "正", "二", "三", "四", "五", "六",
                        "七", "八", "九", "十", "冬", "腊" };
        private static String[] principleTermNames = { "雨水", "春分", "谷雨", "夏满",
                        "夏至", "大暑", "处暑", "秋分", "霜降", "小雪", "冬至", "大寒" };
        private static String[] sectionalTermNames = { "立春", "惊蛰", "清明", "立夏",
                        "芒种", "小暑", "立秋", "白露", "寒露", "立冬", "大雪", "小寒" };

        public String getDateString() {
                String str = "*  /  ";
                String gm = String.valueOf(gregorianMonth);
                if (gm.length() == 1)
                        gm = ' ' + gm;
                String cm = String.valueOf(Math.abs(chineseMonth));
                if (cm.length() == 1)
                        cm = ' ' + cm;
                String gd = String.valueOf(gregorianDate);
                if (gd.length() == 1)
                        gd = ' ' + gd;
                String cd = String.valueOf(chineseDate);
                if (cd.length() == 1)
                        cd = ' ' + cd;
                if (gregorianDate == sectionalTerm) {
                        str = " " + sectionalTermNames[gregorianMonth - 1];
                } else if (gregorianDate == principleTerm) {
                        str = " " + principleTermNames[gregorianMonth - 1];
                } else if (chineseDate == 1 && chineseMonth > 0) {
                        str = " " + chineseMonthNames[chineseMonth - 1] + "月";
                } else if (chineseDate == 1 && chineseMonth < 0) {
                        str = "*" + chineseMonthNames[-chineseMonth - 1] + "月";
                } else {
                        str = gd + '/' + cd;
                }
                return str;
        }

        public int rollUpOneDay() {
                dayOfWeek = dayOfWeek % 7 + 1;
                dayOfYear++;
                gregorianDate++;
                int days = daysInGregorianMonth(gregorianYear, gregorianMonth);
                if (gregorianDate > days) {
                        gregorianDate = 1;
                        gregorianMonth++;
                        if (gregorianMonth > 12) {
                                gregorianMonth = 1;
                                gregorianYear++;
                                dayOfYear = 1;
                                isGregorianLeap = isGregorianLeapYear(gregorianYear);
                        }
                        sectionalTerm = sectionalTerm(gregorianYear, gregorianMonth);
                        principleTerm = principleTerm(gregorianYear, gregorianMonth);
                }
                chineseDate++;
                days = daysInChineseMonth(chineseYear, chineseMonth);
                if (chineseDate > days) {
                        chineseDate = 1;
                        chineseMonth = nextChineseMonth(chineseYear, chineseMonth);
                        if (chineseMonth == 1)
                                chineseYear++;
                }
                return 0;
        }

        public int getGregorianYear() {
                return gregorianYear;
        }

        public void setGregorianYear(int gregorianYear) {
                this.gregorianYear = gregorianYear;
        }

        public int getGregorianMonth() {
                return gregorianMonth;
        }

        public void setGregorianMonth(int gregorianMonth) {
                this.gregorianMonth = gregorianMonth;
        }

        public int getGregorianDate() {
                return gregorianDate;
        }

        public void setGregorianDate(int gregorianDate) {
                this.gregorianDate = gregorianDate;
        }

        public boolean isGregorianLeap() {
                return isGregorianLeap;
        }

        public void setGregorianLeap(boolean isGregorianLeap) {
                this.isGregorianLeap = isGregorianLeap;
        }

        public int getDayOfYear() {
                return dayOfYear;
        }

        public void setDayOfYear(int dayOfYear) {
                this.dayOfYear = dayOfYear;
        }

        public int getDayOfWeek() {
                return dayOfWeek;
        }

        public void setDayOfWeek(int dayOfWeek) {
                this.dayOfWeek = dayOfWeek;
        }

        public int getChineseYear() {
                return chineseYear;
        }

        public void setChineseYear(int chineseYear) {
                this.chineseYear = chineseYear;
        }

        public int getChineseMonth() {
                return chineseMonth;
        }

        public void setChineseMonth(int chineseMonth) {
                this.chineseMonth = chineseMonth;
        }

        public int getChineseDate() {
                return chineseDate;
        }

        public void setChineseDate(int chineseDate) {
                this.chineseDate = chineseDate;
        }

        public int getSectionalTerm() {
                return sectionalTerm;
        }

        public void setSectionalTerm(int sectionalTerm) {
                this.sectionalTerm = sectionalTerm;
        }

        public int getPrincipleTerm() {
                return principleTerm;
        }

        public void setPrincipleTerm(int principleTerm) {
                this.principleTerm = principleTerm;
        }

        public static char[] getDaysInGregorianMonth() {
                return daysInGregorianMonth;
        }

        public static void setDaysInGregorianMonth(char[] daysInGregorianMonth) {
                CalendarUtil.daysInGregorianMonth = daysInGregorianMonth;
        }

        public static String[] getStemNames() {
                return stemNames;
        }

        public static void setStemNames(String[] stemNames) {
                CalendarUtil.stemNames = stemNames;
        }

        public static String[] getBranchNames() {
                return branchNames;
        }

        public static void setBranchNames(String[] branchNames) {
                CalendarUtil.branchNames = branchNames;
        }

        public static String[] getAnimalNames() {
                return animalNames;
        }

        public static void setAnimalNames(String[] animalNames) {
                CalendarUtil.animalNames = animalNames;
        }

        public static char[] getChineseMonths() {
                return chineseMonths;
        }

        public static void setChineseMonths(char[] chineseMonths) {
                CalendarUtil.chineseMonths = chineseMonths;
        }

        public static int getBaseYear() {
                return baseYear;
        }

        public static void setBaseYear(int baseYear) {
                CalendarUtil.baseYear = baseYear;
        }

        public static int getBaseMonth() {
                return baseMonth;
        }

        public static void setBaseMonth(int baseMonth) {
                CalendarUtil.baseMonth = baseMonth;
        }

        public static int getBaseDate() {
                return baseDate;
        }

        public static void setBaseDate(int baseDate) {
                CalendarUtil.baseDate = baseDate;
        }

        public static int getBaseIndex() {
                return baseIndex;
        }

        public static void setBaseIndex(int baseIndex) {
                CalendarUtil.baseIndex = baseIndex;
        }

        public static int getBaseChineseYear() {
                return baseChineseYear;
        }

        public static void setBaseChineseYear(int baseChineseYear) {
                CalendarUtil.baseChineseYear = baseChineseYear;
        }

        public static int getBaseChineseMonth() {
                return baseChineseMonth;
        }

        public static void setBaseChineseMonth(int baseChineseMonth) {
                CalendarUtil.baseChineseMonth = baseChineseMonth;
        }

        public static int getBaseChineseDate() {
                return baseChineseDate;
        }

        public static void setBaseChineseDate(int baseChineseDate) {
                CalendarUtil.baseChineseDate = baseChineseDate;
        }

        public static int[] getBigLeapMonthYears() {
                return bigLeapMonthYears;
        }

        public static void setBigLeapMonthYears(int[] bigLeapMonthYears) {
                CalendarUtil.bigLeapMonthYears = bigLeapMonthYears;
        }

        public static char[][] getSectionalTermMap() {
                return sectionalTermMap;
        }

        public static void setSectionalTermMap(char[][] sectionalTermMap) {
                CalendarUtil.sectionalTermMap = sectionalTermMap;
        }

        public static char[][] getSectionalTermYear() {
                return sectionalTermYear;
        }

        public static void setSectionalTermYear(char[][] sectionalTermYear) {
                CalendarUtil.sectionalTermYear = sectionalTermYear;
        }

        public static char[][] getPrincipleTermMap() {
                return principleTermMap;
        }

        public static void setPrincipleTermMap(char[][] principleTermMap) {
                CalendarUtil.principleTermMap = principleTermMap;
        }

        public static char[][] getPrincipleTermYear() {
                return principleTermYear;
        }

        public static void setPrincipleTermYear(char[][] principleTermYear) {
                CalendarUtil.principleTermYear = principleTermYear;
        }

        public static String[] getMonthNames() {
                return monthNames;
        }

        public static void setMonthNames(String[] monthNames) {
                CalendarUtil.monthNames = monthNames;
        }

        public static String[] getChineseMonthNames() {
                return chineseMonthNames;
        }

        public static void setChineseMonthNames(String[] chineseMonthNames) {
                CalendarUtil.chineseMonthNames = chineseMonthNames;
        }

        public static String[] getPrincipleTermNames() {
                return principleTermNames;
        }

        public static void setPrincipleTermNames(String[] principleTermNames) {
                CalendarUtil.principleTermNames = principleTermNames;
        }

        public static String[] getSectionalTermNames() {
                return sectionalTermNames;
        }

        public static void setSectionalTermNames(String[] sectionalTermNames) {
                CalendarUtil.sectionalTermNames = sectionalTermNames;
        }

        public static void main(String[] arg) {
                CalendarUtil c = new CalendarUtil();
                String cmd = "day";
                int y = 2010;
                int m = 8;
                int d = 11;

                c.setGregorian(y, m, d);
                c.computeChineseFields();
                c.computeSolarTerms();

                if (cmd.equalsIgnoreCase("year")) {
                        String[] t = c.getYearTable();
                        for (int i = 0; i < t.length; i++)
                                System.out.println(t[i]);
                } else if (cmd.equalsIgnoreCase("month")) {
                        String[] t = c.getMonthTable();
                        for (int i = 0; i < t.length; i++)
                                System.out.println(t[i]);
                } else {
                        System.out.println(c.toString());
                }
                System.out.println(c.getDateString());

        }

}

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