java实现中文传统数字与阿拉伯数字的相互转化（回复送币） - 黑马程序员技术交流社区

import java.util.*;
public class ChineseOrNumber
{
public static void main(String[] args)
{
// 把八万四千二百三十二点五八转数字 84232.58
sop(Integer.MAX_VALUE+toChineseNum(Integer.MAX_VALUE+""));
sop(Long.MAX_VALUE+toChineseNum(Long.MAX_VALUE+""));
for(long i=10000L;i<900000000000000L;i+=500050005L){
System.out.print(i+":");
String temp=toChineseNum(i+"");
String temp2=toNum(temp);
sop(temp);
sop(temp2);
if(!temp2.equals(i+"")){
sop("错误");
break;
}
}
}
public static String toNum(String str){
HashMap<String,Integer> number=new HashMap<String,Integer>();
number.put("一",1);
number.put("二",2);
number.put("三",3);
number.put("四",4);
number.put("五",5);
number.put("六",6);
number.put("七",7);
number.put("八",8);
number.put("九",9);
String zhengshu,xiaoshu;
if(str.indexOf('点')!=-1){
String[] shu=str.split("点");
zhengshu=shu[0];
xiaoshu=shu[1];
}else{
zhengshu=str;
xiaoshu="0";
}
zhengshu=toNumPrivate(zhengshu,number);
while(zhengshu.charAt(0)=='0')
zhengshu=zhengshu.substring(1,zhengshu.length());
number.put("零",0);
if(xiaoshu.equals("0"))
return zhengshu;
else
return zhengshu+"."+toXiaoshu(xiaoshu,number);
}
private static String toNumPrivate(String str,HashMap<String,Integer> number){
String[] sheet={"亿亿","亿","万"};
int[] numSheet={16,8,4};
for(int i=0;i<sheet.length;i++){
if(str.contains(sheet[i])){
String[] strArr=str.split(sheet[i]);
String right;
if(strArr.length==1)
right=getRepeatZero(numSheet[i]);
else
right=toNumPrivate(strArr[1],number);
right=getRepeatZero(numSheet[i]-right.length())+right;
return toNumPrivate(strArr[0],number)+right;
}
}
return toZhengshu(str,number);
}
public static String getRepeatZero(int num){
StringBuilder sb=new StringBuilder();
for(int i=0;i<num;i++)
sb.append("0");
return sb.toString();
}
private static String toXiaoshu(String str,HashMap<String,Integer> number){
StringBuilder resultStr=new StringBuilder();
char[] ch=str.toCharArray();
Integer temp=null;
// 把八万四千二百三十二点五八转数字 84232.58
for(char c:ch)
resultStr.append(number.get(c+""));
return resultStr.toString();
}
private static String toZhengshu(String str,HashMap<String,Integer> number){
HashMap<String,Integer> wei=new HashMap<String,Integer>();
/*相应位所占权重*/
wei.put("千",1000);
wei.put("百",100);
wei.put("十",10);
int radix=0,tempResult=0,result=0;
String resultStr=null;
char[] ch=str.toCharArray();
Integer temp=null;
// 把八万四千二百三十二点五八转数字 84232.58
for(char c:ch){
if((temp=number.get(c+""))!=null){
result+=tempResult;
tempResult=0;
radix=temp.intValue();
}else if((temp=wei.get(c+""))!=null){
tempResult=(tempResult==0)?radix*temp:tempResult*temp;
}
}
result+=(tempResult==0)?radix:tempResult;
resultStr=result+"";
return getRepeatZero(4-resultStr.length())+resultStr;
}
public static String toChineseNum(String numStr){
char[] numSheet={'零','一','二','三','四','五','六','七','八','九'};
String zhengshu,xiaoshu;
if(numStr.indexOf(".")!=-1){
String[] shu=numStr.split("\\.");
zhengshu=shu[0];
xiaoshu=shu[1];
}else{
zhengshu=numStr;
xiaoshu="0";
}
zhengshu=zhengshu.replaceAll("\\D","");
xiaoshu=xiaoshu.replaceAll("\\D","");
String result=toChineseNum(zhengshu,numSheet);
if(result.equals(""))
return "转换失败，数值过大或者参数有误";
//最终结果头部去零
while(result.charAt(0)=='零')
result=result.substring(1,result.length());
if(xiaoshu.equals("0"))
return result;
else
return result+"点"+toChinesexiaoshu(xiaoshu,numSheet);
}
private static String toChinesexiaoshu (String num,char[] numSheet){
StringBuilder result=new StringBuilder();
for(int i=0;i<num.length();i++)
result.append(numSheet[Integer.parseInt(num.charAt(i)+"")]);
return result.toString();
}
private static String toChineseNum (String num,char[] numSheet){
/*-----------对小于一万的数据进行处理,------------*/
if(num.length()<=4) {
String result="";
char[] UnitArr={'千','百','十'};
num=getRepeatZero(4-num.length())+num;//对不足四位的数前面补零，直到变成4位
//遍历4位数的4个数字
for(int i=0;i<=3;i++) {
int temp=Integer.parseInt(num.charAt(i)+"");
/*
分为当前位等于0和不等于0的情况
当当前位等于0时，如果是千位就直接赋值零
如果不是千位，则判断前面一位是否为零，不是的话就赋值
*/
if(temp!=0){
result+=numSheet[temp];
if(i!=3) result+=UnitArr[i];
}else{//当前位为零
if(i==0){
result+="零";
}else{
temp=Integer.parseInt(num.charAt(i-1)+"");
if(temp!=0) result+="零";
}
}
}
//清楚尾部的零
if(result.charAt(result.length()-1)=='零')
result=result.substring(0,result.length()-1);
return result;//可能返回"零*","*",""(*代表头部和尾部不含零的大写数字)
}
/*-----------对大于等于一万小于一亿的数据进行处理------------*/
if(num.length()<=8 && num.length()>4){
String left=toChineseNum(num.substring(0,num.length()-4),numSheet);
String right=toChineseNum(num.substring(num.length()-4,num.length()),numSheet);
return compara(left,right,"万");
}
/*-----------对大于等于一亿小于一亿亿的数据进行处理------------*/
if(num.length()<=16 && num.length()>8){
String left=toChineseNum(num.substring(0,num.length()-8),numSheet);
String right=toChineseNum(num.substring(num.length()-8,num.length()),numSheet);
return compara(left,right,"亿");
}
/*-----------2014年国民生产总值也不到一亿亿，再高的就不处理了------------*/
if(num.length()<=32 && num.length()>16){
String left=toChineseNum(num.substring(0,num.length()-16),numSheet);
String right=toChineseNum(num.substring(num.length()-16,num.length()),numSheet);
return compara(left,right,"亿亿");
}
return "";
}
//可能返回"零*","*",""(*代表头部和尾部不含零的大写数字)
public static String compara(String left,String right,String connector){
if(left.equals("")){
if((!right.equals("") && right.charAt(0)=='零') || right.equals(""))
return right;
else
return "零"+right;
}
return left+connector+right;
}
public static void sop(Object o){
System.out.println(o);
}
}

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