[转] Java版 中国农历算法 中国农历生成算法

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/**
* 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;
}
}
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