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package cn.bupt;
public class RiLi {
public static String[] tiangan = {"庚","辛","壬","癸","甲","乙","丙","丁","戊","己"};//天干
public static String[] tianganQ = {"辛","庚","己","戊","丁","丙","乙","甲","癸","壬"};//天干公元前
public static String[] dizhi = {"申","酉","戌","亥","子","丑","寅","卯","辰","巳","午","未"};//地支
public static String[] dizhiQ = {"酉","申","未","午","巳","辰","卯","寅","丑","子","亥","戌"};//地支公元前
//公元元年对应西汉末期，公元1年,9岁的汉平帝刘衎登
//
// 计算公式：[Y*D+C]-L
//
// 公式解读：数2位乘0.2422加3.87取整数减闰数21世纪C值=3.87 22世纪C值=4.15
//
// 举例说明：2058立春期计算步骤[58×.0.2422+3.87]-[(58-1)/4]=17-14=3则2月3立春
public static void main(String[] args) {
/* for(int i = 3000;i>0;i--){
getGanZhi(i+"",true);
}
for(int i = 1;i<2016;i++){
getGanZhi(i+"",false);
}*/
System.out.println(getliChun("2014"));
}
public static String getliChun(String myDate){
int tian = Integer.parseInt(myDate.substring(myDate.length() - 2));
float lic = (float) (tian * 0.2422 + 3.87 - ((tian - 1) / 4));
return myDate + "年，立春是是2月" + (Math.floor(lic) + "").split("\\.")[0] + "号";
}
public static void getGanZhi(String myDate,boolean isQian){
int tian = Integer.parseInt(myDate.substring(myDate.length() - 1));
int di = Integer.parseInt(myDate) % 12;
if (!isQian)
System.out.println(myDate + "年，干支纪年是:" + tiangan[tian] + dizhi[di]);// 公元
if (isQian)
System.out.println("公元前 " + myDate + "年，干支纪年是:" + tianganQ[tian] + dizhiQ[di]);// 公元前
}
}
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原文地址：http://my.oschina.net/u/1447924/blog/378526
