今天老师即兴布置了一个作业，将阿拉伯数字金额转化为中文大写金额表示，假设数字上限为小于10亿，可以支持2位小数，如：
- 100000001——壹亿零壹元整
- 100100011——壹亿零壹拾万零壹拾壹元整
- 201000211——贰亿零壹佰万零贰佰壹拾壹元整
- 2422000.21——贰佰肆拾贰万贰千元贰角壹分
拿到题目，想到先拿两个数组来存放数字和单位，把阿拉伯数字都转换为大写数字和单位组合的形式，如：
- 112000012——壹亿壹仟贰佰零拾零万零仟零佰壹拾贰元整
然后将转换后的字符串进行加工，将"零[拾佰仟]"等变成"零"，考虑"零万"变成"零"还是"万"，这一步是比较麻烦的，要考虑比较多的情况，如：
- 112000012——壹亿壹仟贰佰零零万零零壹拾贰元整
然后将相邻的"零"去重，如：
- 112000012——壹亿壹仟贰佰万零壹拾贰元整
以下为具体代码，可能还有一些情况没有考虑到，暂时记录如下。
package com.zzutest;
import java.text.DecimalFormat;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Transfer2 {
public static void main(String[] args) {
Scanner scan= new Scanner(System.in);
while(true) {
System.out.println("请输入您想要转化的数字：");
String number=scan.next();
if(number.equals("0")) {
break;
};
//System.out.println(cov(convert(number)));
System.out.println("转换结果为："+convert(number));
}
}
private static final char[] data = new char[]{'零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'};
private static final char[] units = new char[]{'分', '角', '元', '拾', '佰', '仟', '万', '拾', '佰', '仟', '亿'};
private static String removeCharAt(String str, int i) {
return str.substring(0, i)+str.substring(i+1);
}
// //将相邻的‘零’去重
// private static String changeZero(String str) {
// str.replace('零', ' ');
// String no = str.replaceAll("\\s{1,}", " ");
// no.replace(' ', '零');
// System.out.println(no);
// return no;
// }
/**
* 小数类型
* @param str
* @return
*/
private static String cov(String str,String trans) {
StringBuffer sb = new StringBuffer(trans);
if(Double.parseDouble(str)>100000000) {
String wan=str.substring(1, 5);
//System.out.println("$$$$$$$$$$$$$$wande is "+wan);
int wanValue = Integer.parseInt(wan);
if(wanValue>0) {
trans = sb.toString()
.replaceAll("零拾", "零")
.replaceAll("零佰", "零")
.replaceAll("零仟", "零")
.replaceAll("零万", "万")
.replaceAll("零元", "元")
.replaceAll("零角", "零")
.replaceAll("零分", "")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零万", "万");
}else if(wanValue==0){
trans = sb.toString()
.replaceAll("零拾", "零")
.replaceAll("零佰", "零")
.replaceAll("零仟", "零")
.replaceAll("零万", "零")
.replaceAll("零元", "元")
.replaceAll("零角", "零")
.replaceAll("零分", "")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零");
}
}else if(Double.parseDouble(str)>10000 && Double.parseDouble(str)<100000000) {
trans = sb.toString()
.replaceAll("零拾", "零")
.replaceAll("零佰", "零")
.replaceAll("零仟", "零")
.replaceAll("零万", "万")
.replaceAll("零元", "元")
.replaceAll("零角", "零")
.replaceAll("零分", "")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零");
}else if(Double.parseDouble(str)<10000 && Double.parseDouble(str)>0) {
trans = sb.toString()
.replaceAll("零拾", "零")
.replaceAll("零佰", "零")
.replaceAll("零仟", "零")
.replaceAll("零元", "元")
.replaceAll("零角", "零")
.replaceAll("零分", "")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零");
}
return new StringBuffer(trans).toString();
}
/**
* 整数类型
* @param str
* @return
*/
private static String covZ(String str,String trans) {
StringBuffer sb = new StringBuffer(trans);
if(Double.parseDouble(str)>100000000) {
String wan=str.substring(1, 5);
System.out.println("$$$$$$$$$$$$$$wande is "+wan);
int wanValue = Integer.parseInt(wan);
if(wanValue>0) {
trans = sb.toString()
.replaceAll("零拾", "零")
.replaceAll("零佰", "零")
.replaceAll("零仟", "零")
.replaceAll("零万", "万")
.replaceAll("零元", "元")
.replaceAll("元", "元整")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零万", "万");
}else if(wanValue==0){
trans = sb.toString()
.replace("零拾", "零")
.replace("零佰", "零")
.replace("零仟", "零")
.replace("零万", "零")
.replace("零元", "元")
.replace("元", "元整")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零");
//System.out.println("_________爆炸了");
}
}else if(Double.parseDouble(str)>10000 && Double.parseDouble(str)<100000000) {
trans = sb.toString()
.replaceAll("零拾", "零")
.replaceAll("零佰", "零")
.replaceAll("零仟", "零")
.replaceAll("零万", "万")
.replaceAll("零元", "元")
.replaceAll("元", "元整")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零");
}else if(Double.parseDouble(str)<10000 && Double.parseDouble(str)>0) {
trans = sb.toString()
.replaceAll("零拾", "零")
.replaceAll("零佰", "零")
.replaceAll("零仟", "零")
.replaceAll("零元", "元")
.replaceAll("元", "元整")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零")
.replaceAll("零零", "零");
}
//StringBuffer sb = new StringBuffer(str);
//System.out.println("1"+sb.reverse().toString());
//str = sb.reverse().toString().replaceAll("零[拾佰仟]", "零").replaceAll("零+万", "万").replaceAll("零+元", "元").replaceAll("零+", "零");
// System.out.println("2"+str);
return new StringBuffer(trans).toString();
}
/**
* 现将各个后面统统加上单位
* @param money
* @return
*/
public static String convert(String money) {
//判断输入是否包含小数点
//包含小数点
if(money.contains(".")) {
//将字符串转为double类型
double moneyT=Double.parseDouble(money);
DecimalFormat df = new DecimalFormat(".00");
// System.out.println("##############"+df.format(moneyT));
//得到标准的小数字符串，即小数点后两位数
String moneyC=df.format(moneyT);
//小数点的位置
int location = moneyC.indexOf(".");
//System.out.println("the location is "+location);
//除去小数点后
//System.out.println("the location which has been conved is "+removeCharAt(moneyC,location));
//使用double类型来标识该数字
double finalNum=Double.parseDouble(removeCharAt(moneyC,location));
//声明定义StringBuffer来存转换后的字符串
StringBuffer sbf = new StringBuffer();
int unit = 0;
//逐位进行大写化，最低位开始依次向上，得到的字符串是倒序的
while (finalNum > 1) {
//单位
sbf.insert(0, units[unit++]);
double number = finalNum % 10;
sbf.insert(0, data[(int)number]);
finalNum /= 10;
//System.out.println("**********"+finalNum);
}
//System.out.println("加上单位以后未经转换的格式为： "+sbf.toString());
String judged = cov(money,sbf.toString());
//System.out.println("经过格式判断的数字为： " + judged);
return judged;
}
//不包含小数点的输入
else {
int moneyT=Integer.parseInt(money);
//System.out.println("---------------->int类型："+moneyT);
StringBuffer sbf = new StringBuffer();
int unit = 2;
while (moneyT != 0) {
sbf.insert(0, units[unit++]);
int number = moneyT % 10;
sbf.insert(0, data[number]);
moneyT /= 10;
}
//System.out.println("加上单位以后未经转换的格式为： "+sbf.toString());
String judged = covZ(money,sbf.toString());
//System.out.println("经过格式判断的数字为： " + judged);
return judged;
}
}
}，
