根据输入的数值返回人民币的形式,该怎么解决

public class ChineseMoneyUtil {    /** 大写数字 */    private static final String[] NUMBERS = { "零", "壹", "贰", "叁",            "肆", "伍", "陆", "柒", "捌", "玖" };    /** 整数部分的单位 */    private static final String[] IUNIT = { "元", "拾", "佰", "仟", "万",            "拾", "佰", "仟", "亿", "拾", "佰", "仟", "万", "拾",            "佰", "仟" };    /** 小数部分的单位 */    private static final String[] DUNIT = { "角", "分", "厘" };    public static String toChinese(String str) {        str = str.replaceAll(" , ", ""); // 去掉","        String integerStr; // 整数部分数字        String decimalStr; // 小数部分数字        if (str.indexOf(".") > 0) {            integerStr = str.substring(0, str.indexOf("."));            decimalStr = str.substring(str.indexOf(".") + 1);        } else if (str.indexOf(".") == 0) {            integerStr = "";            decimalStr = str.substring(1);        } else {            integerStr = str;            decimalStr = "";        }        if (!integerStr.equals("")) {            integerStr = Long.toString(Long.parseLong(integerStr.replace(",", "")));            if (integerStr.equals("0")) {                integerStr = "";            }        }        if (integerStr.length() > IUNIT.length) {            System.out.println(str + " :超出处理能力 ");            return str;        }        int[] integers = toArray(integerStr); // 整数部分数字        boolean isMust5 = isMust5(integerStr); // 设置万单位        int[] decimals = toArray(decimalStr); // 小数部分数字        return getChineseInteger(integers, isMust5)                + getChineseDecimal(decimals);    }    private static int[] toArray(String number) {        int[] array = new int[number.length()];        for (int i = 0; i < number.length(); i++) {            array[i] = Integer.parseInt(number.substring(i, i + 1));        }        return array;    }    private static String getChineseInteger(int[] integers, boolean isMust5) {        StringBuffer chineseInteger = new StringBuffer("");        int length = integers.length;        for (int i = 0; i < length; i++) {            String key = "";            if (integers[i] == 0) {                if ((length - i) == 13) // 万(亿)(必填)                    key = IUNIT[4];                else if ((length - i) == 9) // 亿(必填)                    key = IUNIT[8];                else if ((length - i) == 5 && isMust5) // 万(不必填)                    key = IUNIT[4];                else if ((length - i) == 1) // 元(必填)                    key = IUNIT[0];                if ((length - i) > 1 && integers[i + 1] != 0)                    key += NUMBERS[0];            }            chineseInteger.append(integers[i] == 0 ? key                    : (NUMBERS[integers[i]] + IUNIT[length - i - 1]));        }        return chineseInteger.toString();    }    private static String getChineseDecimal(int[] decimals) {        StringBuffer chineseDecimal = new StringBuffer("");        for (int i = 0; i < decimals.length; i++) {            if (i == 3)                break;            chineseDecimal.append(decimals[i] == 0 ? ""                    : (NUMBERS[decimals[i]] + DUNIT[i]));        }        return chineseDecimal.toString();    }    private static boolean isMust5(String integerStr) {        int length = integerStr.length();        if (length > 4) {            String subInteger = "";            if (length > 8) {                subInteger = integerStr.substring(length - 8, length - 4);            } else {                subInteger = integerStr.substring(0, length - 4);            }            return Integer.parseInt(subInteger) > 0;        } else {            return false;        }    }    public static void main(String[] args) {        String number = "1.23";        System.out.println(number + "   " + ChineseMoneyUtil.toChinese(number));        number = "1234567890123456.123";        System.out.println(number + "   " + ChineseMoneyUtil.toChinese(number));        number = "0.0798";        System.out.println(number + "   " + ChineseMoneyUtil.toChinese(number));        number = "10,001,000.09";        System.out.println(number + "   " + ChineseMoneyUtil.toChinese(number));        number = "01.107700";        System.out.println(number + "   " + ChineseMoneyUtil.toChinese(number));    }}