java将数字拼成汉字

package test;

import java.math.BigDecimal;

public class Convert {

    static BigDecimal MAXIMUM_NUMBER = new BigDecimal("999999999999.99");
    static String CN_ZERO = "零";
    static String CN_ONE = "壹";
    static String CN_TWO = "贰";
    static String CN_THREE = "叁";
    static String CN_FOUR = "肆";
    static String CN_FIVE = "伍";
    static String CN_SIX = "陆";
    static String CN_SEVEN = "柒";
    static String CN_EIGHT = "捌";
    static String CN_NINE = "玖";
    static String CN_TEN = "拾";
    static String CN_HUNDRED = "佰";
    static String CN_THOUSAND = "仟";
    static String CN_TEN_THOUSAND = "万";
    static String CN_HUNDRED_MILLION = "亿";
    static String CN_SYMBOL = "";
    static String CN_DOLLAR = "元";
    static String CN_TEN_CENT = "角";
    static String CN_CENT = "分";
    static String CN_INTEGER = "整";

    static String integral;
    static String decimal;
    static String outputCharacters;
    static String[] parts = new String[2];
    static String[] digits, radices, bigRadices, decimals;
    static int zeroCount;
    static int i, p;
    static int d, ds;
    static int quotient, modulus;

    public static void main(String[] args) {

        System.out.println("star");
        System.out.println(conver(new BigDecimal("100300.99")));
        System.out.println("end");
    
    }


      public static String conver(BigDecimal price) {
        String currencyDigits = price.toString();
        if (currencyDigits == "") {
            return "";
        }

        currencyDigits = currencyDigits.replace("/,/g", "");

        currencyDigits = currencyDigits.replace("/^0+/", "");

        if ((MAXIMUM_NUMBER.compareTo(new BigDecimal(currencyDigits))) < 0) {
            return "";
        }

        String[] parts = currencyDigits.split("\\.");
        if (parts.length > 1) {
            integral = parts[0];
            decimal = parts[1];
            decimal = decimal.substring(0, 2);
        } else {
            integral = parts[0];
            decimal = "";
        }
        digits = new String[] { CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT,
                CN_NINE };
        radices = new String[] { "", CN_TEN, CN_HUNDRED, CN_THOUSAND };
        bigRadices = new String[] { "", CN_TEN_THOUSAND, CN_HUNDRED_MILLION };
        decimals = new String[] { CN_TEN_CENT, CN_CENT };
        outputCharacters = "";
        if (new BigDecimal(integral).compareTo(new BigDecimal(0)) > 0) {
            zeroCount = 0;
            for (int i = 0; i < integral.length(); i++) {
                p = integral.length() - i - 1;
                d = Integer.parseInt(integral.substring(i, i + 1));
　　　　　　　　//控制万以上
                quotient = p / 4;
　　　　　　　　//4以内是百千
                modulus = p % 4;
                if (d == 0) {
                    zeroCount++;
                } else {
                    if (zeroCount > 0) {
                        outputCharacters += digits[0];
                    }
                    zeroCount = 0;
                    outputCharacters += digits[d] + radices[modulus];
                }
                if (modulus == 0 && zeroCount < 4) {
                    outputCharacters += bigRadices[quotient];
                    zeroCount = 0;
                }
            }
            outputCharacters += CN_DOLLAR;

        }
        if (decimal != "") {
            for (i = 0; i < decimal.length(); i++) {
                d = Integer.parseInt(decimal.substring(i, i + 1));
                if (d != 0) {
                    outputCharacters += digits[d] + decimals[i];
                }
            }
        }
        if (outputCharacters == "") {
            outputCharacters = CN_ZERO + CN_DOLLAR;
        }
        if (decimal == "") {
            outputCharacters += CN_INTEGER;
        }

        outputCharacters = CN_SYMBOL + outputCharacters;

        return outputCharacters;
    }

}