如何用java 写显示农历的程序？

买本万年历先!
研究怎么算出来的, 写个 Class extends java.util.Calendar .写出来的东西最好只是自己用, 千万别推广应用 ! ^_^ 很难算准的, 可能只能算准后 10年,

10年，楼上的要求也太低了吧，呵呵~~~
楼主，给你个网址去看看吧，有帮助的
http://www.nongli.com/

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;/**
* 农历日历
* @author Winter Lau
*/
public class LunarCalendar { final private 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 };
final private static int[] year20 = new int[] { 1, 4, 1, 2, 1, 2, 1, 1, 2, 1, 2, 1 };
final private static int[] year19 = new int[] { 0, 3, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0 };
final private static int[] year2000 = new int[] { 0, 3, 1, 2, 1, 2, 1, 1, 2, 1, 2, 1 };
private final static String[] nStr1 = new String[]{"","正","二","三","四","五","六","七","八","九","十","十一","十二"}; private final static String[] Gan=new String[]{"甲","乙","丙","丁","戊","己","庚","辛","壬","癸"};
private final static String[] Zhi=new String[]{"子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"};
private final static String[] Animals=new String[]{"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"};
private final static String[] solarTerm = new String[]{"小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至"};

private final static String[] sFtv = new String[]{
"0101*元旦",
"0214 情人节",
"0308 妇女节",
"0312 植树节",
"0315 消费者权益日",
"0401 愚人节",
"0501 劳动节",
"0504 青年节",
"0512 护士节",
"0601 儿童节",
"0701 建党节",
"0801 建军节",
"0808 父亲节",

"0910 教师节",
"0928 孔子诞辰",
"1001*国庆节",
"1006 老人节",
"1024 联合国日",

"1220 澳门回归",
"1225 圣诞节",
};
private final static String[] lFtv = new String[]{
"0101*农历春节",
"0115 元宵节",
"0505 端午节",
"0707 七夕情人节",
"0815 中秋节",
"0909 重阳节",
"1208 腊八节",
"1224 小年",
"0100*除夕"}; /**
* 传回农历 y年的总天数
* @param y
* @return
*/
final private static int lYearDays(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
* @param y
* @return
*/
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
* @param y
* @return
*/
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
* @param y
* @param m
* @return
*/
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
* @param y
* @return
*/
final public static String AnimalsYear(int y){
return Animals[(y - 4) % 12];
} /**
* 传入月日的offset 传回干支,0=甲子
* @param num
* @return
*/
final private static String cyclicalm(int num)
{
return (Gan[num % 10] + Zhi[num % 12]);
} /**
* 传入 offset 传回干支, 0=甲子
* @param y
* @return
*/
final public static String cyclical(int y){
int num = y - 1900 + 36;
return (cyclicalm(num));
}

/**
* 传出农历.year0 .month1 .day2 .yearCyl3 .monCyl4 .dayCyl5 .isLeap6
* @param y
* @param m
* @return
*/
final private long[] Lunar(int y, int m) {
long[] nongDate = new long[7];
int i = 0, temp = 0, leap = 0;
//Date baseDate = new Date(1900, 1, 31);
Date baseDate = new GregorianCalendar(1900+1900,1,31).getTime();
//Date objDate = new Date(y, m, 1);
Date objDate = new GregorianCalendar(y+1900,m,1).getTime();
long offset = (objDate.getTime() - baseDate.getTime()) / 86400000L;
if (y < 2000)
offset += year19[m - 1];
if (y > 2000)
offset += year20[m - 1];
if (y == 2000)
offset += year2000[m - 1];
nongDate[5] = offset + 40;
nongDate[4] = 14; for (i = 1900; i < 2050 && offset > 0; i++) {
temp = lYearDays(i);
offset -= temp;
nongDate[4] += 12;
}
if (offset < 0) {
offset += temp;
i--;
nongDate[4] -= 12;
}
nongDate[0] = i;
nongDate[3] = i - 1864;
leap = leapMonth(i); // 闰哪个月
nongDate[6] = 0; for (i = 1; i < 13 && offset > 0; i++) {
// 闰月
if (leap > 0 && i == (leap + 1) && nongDate[6] == 0) {
--i;
nongDate[6] = 1;
temp = leapDays((int) nongDate[0]);
} else {
temp = monthDays((int) nongDate[0], i);
} // 解除闰月
if (nongDate[6] == 1 && i == (leap + 1))
nongDate[6] = 0;
offset -= temp;
if (nongDate[6] == 0)
nongDate[4]++;
} if (offset == 0 && leap > 0 && i == leap + 1) {
if (nongDate[6] == 1) {
nongDate[6] = 0;
} else {
nongDate[6] = 1;
--i;
--nongDate[4];
}
}
if (offset < 0) {
offset += temp;
--i;
--nongDate[4];
}
nongDate[1] = i;
nongDate[2] = offset + 1;
return nongDate;
} /**
* 传出y年m月d日对应的农历.year0 .month1 .day2 .yearCyl3 .monCyl4 .dayCyl5 .isLeap6
* @param y
* @param m
* @param d
* @return
*/
final public static long[] calElement(int y, int m, int d)
{
long[] nongDate = new long[7];
int i = 0, temp = 0, leap = 0;
//Date baseDate = new Date(0, 0, 31);
Date baseDate = new GregorianCalendar(0+1900,0,31).getTime();
//Date objDate = new Date(y - 1900, m - 1, d);
Date objDate = new GregorianCalendar(y,m-1,d).getTime();
long offset = (objDate.getTime() - baseDate.getTime()) / 86400000L;
nongDate[5] = offset + 40;
nongDate[4] = 14; for (i = 1900; i < 2050 && offset > 0; i++) {
temp = lYearDays(i);
offset -= temp;
nongDate[4] += 12;
}
if (offset < 0) {
offset += temp;
i--;
nongDate[4] -= 12;
}
nongDate[0] = i;
nongDate[3] = i - 1864;
leap = leapMonth(i); // 闰哪个月
nongDate[6] = 0; for (i = 1; i < 13 && offset > 0; i++) {
// 闰月
if (leap > 0 && i == (leap + 1) && nongDate[6] == 0) {
--i;
nongDate[6] = 1;
temp = leapDays((int) nongDate[0]);
} else {
temp = monthDays((int) nongDate[0], i);
} // 解除闰月
if (nongDate[6] == 1 && i == (leap + 1))
nongDate[6] = 0;
offset -= temp;
if (nongDate[6] == 0)
nongDate[4]++;
} if (offset == 0 && leap > 0 && i == leap + 1) {
if (nongDate[6] == 1) {
nongDate[6] = 0;
} else {
nongDate[6] = 1;
--i;
--nongDate[4];
}
}
if (offset < 0) {
offset += temp;
--i;
--nongDate[4];
}
nongDate[1] = i;
nongDate[2] = offset + 1;
return nongDate;
} public final static String getChinaDate(int day) {
String a = "";
if (day == 10)
return "初十";
if(day==20)
return "二十";
if(day==30)
return "三十";
int two = (int) ((day) / 10);
if (two == 0)
a = "初";
if (two == 1)
a = "十";
if (two == 2)
a = "廿";
if (two == 3)
a = "三";
int one = (int) (day % 10);
switch (one) {
case 1:
a += "一";
break;
case 2:
a += "二";
break;
case 3:
a += "三";
break;
case 4:
a += "四";
break;
case 5:
a += "五";
break;
case 6:
a += "六";
break;
case 7:
a += "七";
break;
case 8:
a += "八";
break;
case 9:
a += "九";
break;
}
return a;
}

public static String today(){
Calendar today = Calendar.getInstance(Locale.SIMPLIFIED_CHINESE);
int year = today.get(Calendar.YEAR);
int month = today.get(Calendar.MONTH)+1;
int date = today.get(Calendar.DATE);
long[] l = calElement(year, month, date);
StringBuffer sToday = new StringBuffer();
try{
sToday.append(sdf.format(today.getTime()));
sToday.append(" 农历");
sToday.append(cyclical(year));
sToday.append('(');
sToday.append(AnimalsYear(year));
sToday.append(")年");
sToday.append(nStr1[(int)l[1]]);
sToday.append("月");
sToday.append(getChinaDate((int) (l[2])));
return sToday.toString();
}finally{
sToday = null;
}
}

private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy年M月d日 EEEEE");

/**
* 农历日历工具使用演示
* @param args
*/
public static void main(String[] args) {
System.out.println(today());
}
}

学习。
好像是根据网上流程很广的那个javascript的改造的。

调试易

如何用java 写显示农历的程序？

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