金额转换，阿拉伯数字的金额转换成中国传统的形式如：（￥1011）－>（一千零一拾一元整）输出

import java.text.DecimalFormat;
public class Rmb {
private static final char[] data={'零','壹','贰','叁','肆','伍','陆','柒','捌','玖'};
private static final char[] units={'元','拾','佰','仟','万','拾','佰','仟','亿'};
private static final char[] decimalunits={'厘','分','角'};
public static String convert(double money){
StringBuffer sbf=new StringBuffer();
String result;
int unit=0;
int decimalunit=0;

if(money>=1000000000){
result="数字超出处理范围";
return result;
}
//保留三位小数
money = (double)Math.round(money*1000)/1000;
//不用指数法计数
DecimalFormat a = new DecimalFormat("##0.000");
String strmoney=a.format(money);

int integermoney;
int decimalmoney;
//分离整数部分与小数部分
if(strmoney.indexOf('.')!=0){
integermoney=Integer.parseInt(strmoney.substring(0,strmoney.indexOf('.')));
decimalmoney=Integer.parseInt(strmoney.substring(strmoney.indexOf('.')+1,strmoney.length()));
}else{
integermoney=(int)money;
decimalmoney=0;
}
//小数部分
while(decimalmoney!=0){
sbf.insert(0, decimalunits[decimalunit++]);
sbf.insert(0, data[decimalmoney%10]);
decimalmoney=decimalmoney/10;
}
//去小数部分的零
result=sbf.toString().replaceAll("零[厘分角]", "");
sbf=new StringBuffer();
//整数部分
while(integermoney!=0){
sbf.insert(0, units[unit++]);
sbf.insert(0, data[integermoney%10]);
integermoney=integermoney/10;
}
//去整数部分的零
if(result==null||result.equals("")){
result=sbf.toString().replaceAll("零[拾佰仟]","零").replaceAll("零{4}万","零").replaceAll("零+万", "万").replaceAll("零+元", "元").replaceAll("零+", "零")+"整";
}else{
result=sbf.toString().replaceAll("零[拾佰仟]","零").replaceAll("零{4}万","零").replaceAll("零+万", "万").replaceAll("零+元", "元").replaceAll("零+", "零")+result;
}
return  result;
}
public static void main(String[] args) {
Rmb rmb=new Rmb();
System.out.println(rmb.convert(900000000.0561));
}
}