如何用Java编程实现人民币大小写转换？

//给你的简单的万位整数转换，接下来思考一下吧
package com.ldc.test;

import java.util.Scanner;

/**
*
* @author 愿做无聊听众6
*
*/
public class Test {
public static void main(String[] args) {
String[] str = "零,壹,贰,叁,肆,伍,陆,柒,捌,玖,拾,佰,仟,万,亿,圆".split("\\,");
String[] str2 = "拾,佰,仟,万,亿".split("\\,");
Scanner scan = new Scanner(System.in);
int input = scan.nextInt();
String money=String.valueOf(input);
StringBuffer sbf = new StringBuffer();
for (int i = money.length(); i >0 ; i--) {
if(sbf.length()==0){
sbf.insert(0,"圆整");
}else{
sbf.insert(0,str2[money.length()-i-1]);
}
sbf.insert(0,str[Integer.parseInt(String.valueOf(money.charAt(i-1)))]);

}

System.out.print(sbf);

}
}

public class Rmb {
public static String ZhuanHuan(int x)
{
String y="请输入3位数";