[转] Java版 中国农历算法 中国农历生成算法

/**
* 實用於公曆 1901 年至 2100 年之間的 200 年
* 
* See also: 
* 1. http://www.herongyang.com/year_big5/ 
* 2. http://www.herongyang.com/year_big5/calendar.html
* 3. http://www.herongyang.com/year_big5/program.html
*/
class LunarCalendar {
	private int gregorianYear;
	private int gregorianMonth;
	private int gregorianDate;
	private boolean isGregorianLeap;
	private int dayOfYear;
	private int dayOfWeek; // 週日一星期的第一天
	private int chineseYear;
	private int chineseMonth; // 負數表示閏月
	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", "龍", "蛇", "馬", "羊", "猴", "雞", "狗", "豬" };
	public static void main(String[] arg) {
	LunarCalendar c = new LunarCalendar();
	String cmd = "day";
	int y = 1901;
	int m = 1;
	int d = 1;
	if (arg.length > 0)
	cmd = arg[0];
	if (arg.length > 1)
y = Integer.parseInt(arg[1]);
	if (arg.length > 2)
m = Integer.parseInt(arg[2]);
	if (arg.length > 3)
d = Integer.parseInt(arg[3]);
	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());
	}
	}
	public LunarCalendar() {
	setGregorian(1901, 1, 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;
	}
	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;
	}
	public static int daysInGregorianMonth(int y, int m) {
	int d = daysInGregorianMonth[m - 1];
	if (m == 2 && isGregorianLeapYear(y))
	d++; // 公曆閏年二月多一天
	return d;
	}
	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;
	}
	public static int dayOfWeek(int y, int m, int d) {
	int w = 1; // 公曆一年一月一日是星期一，所以起始值為星期日
y = (y - 1) % 400 + 1; // 公曆星期值分部 400 年循環一次
	int ly = (y - 1) / 4; // 閏年次數
	ly = ly - (y - 1) / 100;
	ly = ly + (y - 1) / 400;
	int ry = y - 1 - ly; // 常年次數
w = w + ry; // 常年星期值增一
w = w + 2 * ly; // 閏年星期值增二
w = w + dayOfYear(y, m, d);
w = (w - 1) % 7 + 1;
	return w;
	}
	private static char[] chineseMonths = {
// 農曆月份大小壓縮表，兩個字節表示一年。兩個字節共十六個二進制位數，
// 前四個位數表示閏月月份，後十二個位數表示十二個農曆月份的大小。
	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，公曆農曆對應日期：
// 公曆 1901 年 1 月 1 日，對應農曆 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;
// 第二個對應日，用以提高計算效率
// 公曆 2000 年 1 月 1 日，對應農曆 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 = {
// 大閏月的閏年年份
	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：閏月 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, "公曆年曆：" + gregorianYear);
	table[1] = getTextLine(27, "農曆年曆：" + (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, "##/## - 公曆日期/農曆日期，(*)#月 - (閏)農曆月第一天");
	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", "臘" };
	private static String[] principleTermNames = { "大寒", "雨水", "春分", "穀雨", "夏滿", "夏至", "大暑", "處暑", "秋分",
"霜降", "小雪", "冬至" };
	private static String[] sectionalTermNames = { "小寒", "立春", "驚蟄", "清明", "立夏", "芒種", "小暑", "立秋", "白露",
"寒露", "立冬", "大雪" };
	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;
	}
}