公历农历互相转换

public class CalendarUtil {

// Array lIntLunarDay is stored in the monthly day information in every year

// from 1901 to 2100 of the lunar calendar,

// The lunar calendar can only be 29 or 30 days every month, express with

// 12(or 13) pieces of binary bit in one year,

// it is 30 days for 1 form in the corresponding location , otherwise it is

// 29 days

private static final int[] iLunarMonthDaysTable = {

0x4ae0,

0xa570,

0x5268,

0xd260,

0xd950,

0x6aa8,

0x56a0,

0x9ad0,

0x4ae8,

0x4ae0, // 1910

0xa4d8,

0xa4d0,

0xd250,

0xd548,

0xb550,

0x56a0,

0x96d0,

0x95b0,

0x49b8,

0x49b0, // 1920

0xa4b0,

0xb258,

0x6a50,

0x6d40,

0xada8,

0x2b60,

0x9570,

0x4978,

0x4970,

0x64b0, // 1930

0xd4a0,

0xea50,

0x6d48,

0x5ad0,

0x2b60,

0x9370,

0x92e0,

0xc968,

0xc950,

0xd4a0, // 1940

0xda50,

0xb550,

0x56a0,

0xaad8,

0x25d0,

0x92d0,

0xc958,

0xa950,

0xb4a8,

0x6ca0, // 1950

0xb550,

0x55a8,

0x4da0,

0xa5b0,

0x52b8,

0x52b0,

0xa950,

0xe950,

0x6aa0,

0xad50, // 1960

0xab50,

0x4b60,

0xa570,

0xa570,

0x5260,

0xe930,

0xd950,

0x5aa8,

0x56a0,

0x96d0, // 1970

0x4ae8, 0x4ad0,

0xa4d0,

0xd268,

0xd250,

0xd528,

0xb540,

0xb6a0,

0x96d0,

0x95b0, // 1980

0x49b0, 0xa4b8, 0xa4b0,

0xb258,

0x6a50,

0x6d40,

0xada0,

0xab60,

0x9370,

0x4978, // 1990

0x4970, 0x64b0, 0x6a50, 0xea50,

0x6b28,

0x5ac0,

0xab60,

0x9368,

0x92e0,

0xc960, // 2000

0xd4a8, 0xd4a0, 0xda50, 0x5aa8, 0x56a0,

0xaad8,

0x25d0,

0x92d0,

0xc958,

0xa950, // 2010

0xb4a0, 0xb550, 0xb550, 0x55a8, 0x4ba0, 0xa5b0,

0x52b8,

0x52b0,

0xa930,

0x74a8, // 2020

0x6aa0, 0xad50, 0x4da8, 0x4b60, 0x9570, 0xa4e0, 0xd260,

0xe930,

0xd530,

0x5aa0, // 2030

0x6b50, 0x96d0, 0x4ae8, 0x4ad0, 0xa4d0, 0xd258, 0xd250, 0xd520,

0xdaa0,

0xb5a0, // 2040

0x56d0, 0x4ad8, 0x49b0, 0xa4b8, 0xa4b0, 0xaa50, 0xb528, 0x6d20,

0xada0, 0x55b0 // 2050

};

// Array iLunarLeapMonthTable preserves the lunar calendar leap month from

// 1901 to 2050,

// if it is 0 express not to have , every byte was stored for two years

private static final char[] iLunarLeapMonthTable = { 0x00, 0x50, 0x04,

0x00, 0x20, // 1910

0x60, 0x05, 0x00, 0x20, 0x70, // 1920

0x05, 0x00, 0x40, 0x02, 0x06, // 1930

0x00, 0x50, 0x03, 0x07, 0x00, // 1940

0x60, 0x04, 0x00, 0x20, 0x70, // 1950

0x05, 0x00, 0x30, 0x80, 0x06, // 1960

0x00, 0x40, 0x03, 0x07, 0x00, // 1970

0x50, 0x04, 0x08, 0x00, 0x60, // 1980

0x04, 0x0a, 0x00, 0x60, 0x05, // 1990

0x00, 0x30, 0x80, 0x05, 0x00, // 2000

0x40, 0x02, 0x07, 0x00, 0x50, // 2010

0x04, 0x09, 0x00, 0x60, 0x04, // 2020

0x00, 0x20, 0x60, 0x05, 0x00, // 2030

0x30, 0xb0, 0x06, 0x00, 0x50, // 2040

0x02, 0x07, 0x00, 0x50, 0x03 // 2050

};

// Array iSolarLunarTable stored the offset days

// in New Year of solar calendar and lunar calendar from 1901 to 2050;

private static final char[] iSolarLunarOffsetTable = { 49, 38, 28, 46, 34,

24, 43, 32, 21, 40, // 1910

29, 48, 36, 25, 44, 34, 22, 41, 31, 50, // 1920

38, 27, 46, 35, 23, 43, 32, 22, 40, 29, // 1930

47, 36, 25, 44, 34, 23, 41, 30, 49, 38, // 1940

26, 45, 35, 24, 43, 32, 21, 40, 28, 47, // 1950

36, 26, 44, 33, 23, 42, 30, 48, 38, 27, // 1960

45, 35, 24, 43, 32, 20, 39, 29, 47, 36, // 1970

26, 45, 33, 22, 41, 30, 48, 37, 27, 46, // 1980

35, 24, 43, 32, 50, 39, 28, 47, 36, 26, // 1990

45, 34, 22, 40, 30, 49, 37, 27, 46, 35, // 2000

23, 42, 31, 21, 39, 28, 48, 37, 25, 44, // 2010

33, 23, 41, 31, 50, 39, 28, 47, 35, 24, // 2020

42, 30, 21, 40, 28, 47, 36, 25, 43, 33, // 2030

22, 41, 30, 49, 37, 26, 44, 33, 23, 42, // 2040

31, 21, 40, 29, 47, 36, 25, 44, 32, 22, // 2050

};

 

static boolean bIsSolarLeapYear(int iYear) {

return ((iYear % 4 == 0) && (iYear % 100 != 0) || iYear % 400 == 0);

}

 

// The days in the month of solar calendar

static int iGetSYearMonthDays(int iYear, int iMonth) {

if ((iMonth == 1) || (iMonth == 3) || (iMonth == 5) || (iMonth == 7)

|| (iMonth == 8) || (iMonth == 10) || (iMonth == 12))

return 31;

else if ((iMonth == 4) || (iMonth == 6) || (iMonth == 9)

|| (iMonth == 11))

return 30;

else if (iMonth == 2) {

if (bIsSolarLeapYear(iYear))

return 29;

else

return 28;

} else

return 0;

}

 

// The offset days from New Year and the day when point out in solar

// calendar

static int iGetSNewYearOffsetDays(int iYear, int iMonth, int iDay) {

int iOffsetDays = 0;

for (int i = 1; i < iMonth; i++) {

iOffsetDays += iGetSYearMonthDays(iYear, i);

}

iOffsetDays += iDay - 1;

return iOffsetDays;

}

 

static int iGetLLeapMonth(int iYear) {

char iMonth = iLunarLeapMonthTable[(iYear - 1901) / 2];

if (iYear % 2 == 0)

return (iMonth & 0x0f);

else

return (iMonth & 0xf0) >> 4;

}

 

static int iGetLMonthDays(int iYear, int iMonth) {

int iLeapMonth = iGetLLeapMonth(iYear);

if ((iMonth > 12) && (iMonth - 12 != iLeapMonth) || (iMonth < 0)) {

System.out

.println("Wrong month, ^_^ , i think you are want a -1, go to death!");

return -1;

}

if (iMonth - 12 == iLeapMonth) {

if ((iLunarMonthDaysTable[iYear - 1901] & (0x8000 >> iLeapMonth)) == 0)

return 29;

else

return 30;

}

if ((iLeapMonth > 0) && (iMonth > iLeapMonth))

iMonth++;

if ((iLunarMonthDaysTable[iYear - 1901] & (0x8000 >> (iMonth - 1))) == 0)

return 29;

else

return 30;

}

 

// Days in this year of lunar calendar

static int iGetLYearDays(int iYear) {

int iYearDays = 0;

int iLeapMonth = iGetLLeapMonth(iYear);

for (int i = 1; i < 13; i++)

iYearDays += iGetLMonthDays(iYear, i);

if (iLeapMonth > 0)

iYearDays += iGetLMonthDays(iYear, iLeapMonth + 12);

return iYearDays;

}

 

static int iGetLNewYearOffsetDays(int iYear, int iMonth, int iDay) {

int iOffsetDays = 0;

int iLeapMonth = iGetLLeapMonth(iYear);

if ((iLeapMonth > 0) && (iLeapMonth == iMonth - 12)) {

iMonth = iLeapMonth;

iOffsetDays += iGetLMonthDays(iYear, iMonth);

}

for (int i = 1; i < iMonth; i++) {

iOffsetDays += iGetLMonthDays(iYear, i);

if (i == iLeapMonth)

iOffsetDays += iGetLMonthDays(iYear, iLeapMonth + 12);

}

iOffsetDays += iDay - 1;

return iOffsetDays;

}

 

// The solar calendar is turned into the lunar calendar

static String sCalendarSolarToLundar(int iYear, int iMonth, int iDay) {

int iLDay, iLMonth, iLYear;

int iOffsetDays = iGetSNewYearOffsetDays(iYear, iMonth, iDay);

int iLeapMonth = iGetLLeapMonth(iYear);

if (iOffsetDays < iSolarLunarOffsetTable[iYear - 1901]) {

iLYear = iYear - 1;

iOffsetDays = iSolarLunarOffsetTable[iYear - 1901] - iOffsetDays;

iLDay = iOffsetDays;

for (iLMonth = 12; iOffsetDays > iGetLMonthDays(iLYear, iLMonth); iLMonth--) {

iLDay = iOffsetDays;

iOffsetDays -= iGetLMonthDays(iLYear, iLMonth);

}

if (0 == iLDay)

iLDay = 1;

else

iLDay = iGetLMonthDays(iLYear, iLMonth) - iOffsetDays + 1;

} else {

iLYear = iYear;

iOffsetDays -= iSolarLunarOffsetTable[iYear - 1901];

iLDay = iOffsetDays + 1;

for (iLMonth = 1; iOffsetDays >= 0; iLMonth++) {

iLDay = iOffsetDays + 1;

iOffsetDays -= iGetLMonthDays(iLYear, iLMonth);

if ((iLeapMonth == iLMonth) && (iOffsetDays > 0)) {

iLDay = iOffsetDays;

iOffsetDays -= iGetLMonthDays(iLYear, iLMonth + 12);

if (iOffsetDays <= 0) {

iLMonth += 12 + 1;

break;

}

}

}

iLMonth--;

}

return "" + iLYear + (iLMonth > 9 ? "" + iLMonth : "0" + iLMonth)

+ (iLDay > 9 ? "" + iLDay : "0" + iLDay);

}

 

// The lunar calendar is turned into the Solar calendar

static String sCalendarLundarToSolar(int iYear, int iMonth, int iDay) {

int iSYear, iSMonth, iSDay;

int iOffsetDays = iGetLNewYearOffsetDays(iYear, iMonth, iDay)

+ iSolarLunarOffsetTable[iYear - 1901];

int iYearDays = bIsSolarLeapYear(iYear) ? 366 : 365;

if (iOffsetDays >= iYearDays) {

iSYear = iYear + 1;

iOffsetDays -= iYearDays;

} else {

iSYear = iYear;

}

iSDay = iOffsetDays + 1;

for (iSMonth = 1; iOffsetDays >= 0; iSMonth++) {

iSDay = iOffsetDays + 1;

iOffsetDays -= iGetSYearMonthDays(iSYear, iSMonth);

}

iSMonth--;

return "" + iSYear + (iSMonth > 9 ? iSMonth + "" : "0" + iSMonth)

+ (iSDay > 9 ? iSDay + "" : "0" + iSDay);

}

}

 

//自定义星期类

class Week {

int iWeek;

private String sWeek[] = { "Sunday", "Monday", "Tuesday", "Wednesday",

"Thursday", "Friday", "Saturday" };

 

public Week() {

iWeek = 0;

}

 

public Week(int w) {

if ((w > 6) || (w < 0)) {

System.out.println("Week out of range, I think you want Sunday");

this.iWeek = 0;

} else

this.iWeek = w;

}

 

public String toString() {

return sWeek[iWeek];

}

}

 

// 自定义日期类

class MyDate {

public int iYear;

public int iMonth;

public int iDay;

 

private static int checkYear(int iYear) {

if ((iYear > 1901) && (iYear < 2050))

return iYear;

else {

System.out.println("The Year out of range, I think you want 1981");

return 1981;

}

}

 

public MyDate(int iYear, int iMonth, int iDay) {

this.iYear = checkYear(iYear);

this.iMonth = iMonth;

this.iDay = iDay;

}

 

public MyDate(int iYear, int iMonth) {

this.iYear = checkYear(iYear);

this.iMonth = iMonth;

this.iDay = 1;

}

 

public MyDate(int iYear) {

this.iYear = checkYear(iYear);

this.iMonth = 1;

this.iDay = 1;

}

 

public MyDate() {

this.iYear = 1981;

this.iMonth = 1;

this.iDay = 1;

}

 

public String toString() {

return "" + this.iYear

+ (this.iMonth > 9 ? "" + this.iMonth : "0" + this.iMonth)

+ (this.iDay > 9 ? "" + this.iDay : "0" + this.iDay);

}

 

public boolean equals(MyDate md) {

return ((md.iDay == this.iDay) && (md.iMonth == this.iMonth) && (md.iYear == this.iYear));

}

}

 

// 阳历日期类,继承自定义日期

class SolarDate extends MyDate {

private static int checkMonth(int iMonth) {

if (iMonth > 12) {

System.out.println("Month out of range, I think you want 12 ");

return 12;

} else if (iMonth < 1) {

System.out.println("Month out of range, I think you want 1 ");

return 1;

} else

return iMonth;

}

 

private static int checkDay(int iYear, int iMonth, int iDay) {

int iMonthDays = CalendarUtil.iGetSYearMonthDays(iYear, iMonth);

if (iDay > iMonthDays) {

System.out.println("Day out of range, I think you want "

+ iMonthDays + " ");

return iMonthDays;

} else if (iDay < 1) {

System.out.println("Day out of range, I think you want 1 ");

return 1;

} else

return iDay;

}

 

public SolarDate(int iYear, int iMonth, int iDay) {

super(iYear);

this.iMonth = checkMonth(iMonth);

this.iDay = checkDay(this.iYear, this.iMonth, iDay);

}

 

public SolarDate(int iYear, int iMonth) {

super(iYear);

this.iMonth = checkMonth(iMonth);

}

 

public SolarDate(int iYear) {

super(iYear);

}

 

public SolarDate() {

super();

}

 

public String toString() {

return "" + this.iYear

+ (this.iMonth > 9 ? "-" + this.iMonth : "-0" + this.iMonth)

+ (this.iDay > 9 ? "-" + this.iDay : "-0" + this.iDay);

}

 

public Week toWeek() {

int iOffsetDays = 0;

for (int i = 1901; i < iYear; i++) {

if (CalendarUtil.bIsSolarLeapYear(i))

iOffsetDays += 366;

else

iOffsetDays += 365;

}

iOffsetDays += CalendarUtil.iGetSNewYearOffsetDays(iYear, iMonth,

iDay);

return new Week((iOffsetDays + 2) % 7);

}

 

public LunarDate toLunarDate() {

int iYear, iMonth, iDay, iDate;

LunarDate ld;

iDate = Integer.parseInt(CalendarUtil.sCalendarSolarToLundar(

this.iYear, this.iMonth, this.iDay));

iYear = iDate / 10000;

iMonth = iDate % 10000 / 100;

iDay = iDate % 100;

ld = new LunarDate(iYear, iMonth, iDay);

return ld;

}

}

 

// 阴历日期类,继承自定义日期类

class LunarDate extends MyDate {

private String sChineseNum[] = { "零", "一", "二", "三", "四", "五", "六", "七",

"八", "九", "十" };

 

private static int checkMonth(int iYear, int iMonth) {

if ((iMonth > 12)

&& (iMonth == CalendarUtil.iGetLLeapMonth(iYear) + 12)) {

return iMonth;

} else if (iMonth > 12) {

System.out.println("Month out of range, I think you want 12 ");

return 12;

} else if (iMonth < 1) {

System.out.println("Month out of range, I think you want 1 ");

return 1;

} else

return iMonth;

}

 

private static int checkDay(int iYear, int iMonth, int iDay) {

int iMonthDays = CalendarUtil.iGetLMonthDays(iYear, iMonth);

if (iDay > iMonthDays) {

System.out.println("Day out of range, I think you want "

+ iMonthDays + " ");

return iMonthDays;

} else if (iDay < 1) {

System.out.println("Day out of range, I think you want 1 ");

return 1;

} else

return iDay;

}

 

public LunarDate(int iYear, int iMonth, int iDay) {

super(iYear);

this.iMonth = checkMonth(this.iYear, iMonth);

this.iDay = checkDay(this.iYear, this.iMonth, iDay);

}

 

public LunarDate(int iYear, int iMonth) {

super(iYear);

this.iMonth = checkMonth(this.iYear, iMonth);

}

 

public LunarDate(int iYear) {

super(iYear);

}

 

public LunarDate() {

super();

}

 

public String toString() {

String sCalendar = "农历";

sCalendar += sChineseNum[iYear / 1000]

+ sChineseNum[iYear % 1000 / 100]

+ sChineseNum[iYear % 100 / 10] + sChineseNum[iYear % 10] + "("

+ toChineseEra() + ")年";

if (iMonth > 12) {

iMonth -= 12;

sCalendar += "闰";

}

if (iMonth == 12)

sCalendar += "腊月";

else if (iMonth == 11)

sCalendar += "冬月";

else if (iMonth == 1)

sCalendar += "正月";

else

sCalendar += sChineseNum[iMonth] + "月";

if (iDay > 29)

sCalendar += "三十";

else if (iDay > 20)

sCalendar += "二十" + sChineseNum[iDay % 20];

else if (iDay == 20)

sCalendar += "二十";

else if (iDay > 10)

sCalendar += "十" + sChineseNum[iDay % 10];

else

sCalendar += "初" + sChineseNum[iDay];

return sCalendar;

}

 

public CnWeek toWeek() {

int iOffsetDays = 0;

for (int i = 1901; i < iYear; i++)

iOffsetDays += CalendarUtil.iGetLYearDays(i);

iOffsetDays += CalendarUtil.iGetLNewYearOffsetDays(iYear, iMonth,

iDay);

return new CnWeek((iOffsetDays + 2) % 7);

}

 

public ChineseEra toChineseEra() {

return new ChineseEra(iYear);

}

 

public SolarDate toSolarDate() {

int iYear, iMonth, iDay, iDate;

SolarDate sd;

iDate = Integer.parseInt(CalendarUtil.sCalendarLundarToSolar(

this.iYear, this.iMonth, this.iDay));

iYear = iDate / 10000;

iMonth = iDate % 10000 / 100;

iDay = iDate % 100;

sd = new SolarDate(iYear, iMonth, iDay);

return sd;

}

}

 

class CnWeek extends Week {

private String sCnWeek[] = { "日", "一", "二", "三", "四", "五", "六" };

 

public CnWeek() {

super();

}

 

public CnWeek(int iWeek) {

super(iWeek);

}

 

public String toString() {

return "星期" + sCnWeek[this.iWeek];

}

}

 

class ChineseEra {

int iYear;

String[] sHeavenlyStems = { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬",

"癸" };

String[] sEarthlyBranches = { "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申",

"酉", "戌", "亥" };

 

public ChineseEra() {

int iYear = 1981;

}

 

public ChineseEra(int iYear) {

if ((iYear < 2050) && (iYear > 1901))

this.iYear = iYear;

else

this.iYear = 1981;

}

 

public String toString() {

int temp;

temp = Math.abs(iYear - 1924);

return sHeavenlyStems[temp % 10] + sEarthlyBranches[temp % 12];

}

}

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