笔试中的编程题2

把 数字金额 转换成  中文金额。 如： 23424.12 ----> 贰万叁仟肆佰贰拾肆圆壹角贰分. 郁闷...   转个过来（教训）。

import java.math.BigDecimal;

public class ChineseCurrency {
    // 中文金额单位数组
    String[] arrChineseUnit = { "分", "角", "圆", "拾", "佰", "仟", "万", "拾", "佰",
            "仟", "亿", "拾", "佰", "仟" };
    // 中文数字字符数组
    String[] arrChineseNum = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };

    /**
     * Description 将数字金额转换为中文金额
     * 
     * @param BigDecimal
     *            bigdMoneyNumber 转换前的数字金额
     * @return String 调用：<br/>
     *         myToChineseCurrency("101.89")="壹佰零壹圆捌角玖分"
     *         myToChineseCurrency("100.89")="壹佰零捌角玖分"
     *         myToChineseCurrency("100")="壹佰圆整"
     */
    public String DoNumberCurrencyToChineseCurrency(BigDecimal moneyNumber) {
        String strChineseCurrency = "";
        // 零数位标记
        boolean isZero = true;
        // 中文金额单位下标
        int chineseUnitIndex = 0;
        try {
            if (moneyNumber.intValue() == 0) {
                return "零圆整";
            }
            // 处理小数部分，四舍五入
            double doubMoneyNumber = Math
                    .round(moneyNumber.doubleValue() * 100);
            // 是否负数
            boolean bNegative = doubMoneyNumber < 0;
            // 取绝对值
            doubMoneyNumber = Math.abs(doubMoneyNumber);

            // 循环处理转换操作
            while (doubMoneyNumber > 0) {
                // 整的处理(无小数位)
                if (chineseUnitIndex == 2 && strChineseCurrency.length() == 0)
                    strChineseCurrency = strChineseCurrency + "整";

                // 非零数位的处理
                if (doubMoneyNumber % 10 > 0) {
                    strChineseCurrency = arrChineseNum[(int) doubMoneyNumber % 10]
                            + arrChineseUnit[chineseUnitIndex]
                            + strChineseCurrency;
                    isZero = false;
                }
                // 零数位的处理
                else {
                    // 元的处理(个位)
                    if (chineseUnitIndex == 2) {
                        // 段中有数字
                        if (doubMoneyNumber > 0) {
                            strChineseCurrency = arrChineseUnit[chineseUnitIndex]
                                    + strChineseCurrency;
                            isZero = true;
                        }
                    }
                    // 万、亿数位的处理
                    else if (chineseUnitIndex == 6 || chineseUnitIndex == 10) {
                        // 段中有数字
                        if (doubMoneyNumber % 1000 > 0)
                            strChineseCurrency = arrChineseUnit[chineseUnitIndex]
                                    + strChineseCurrency;
                    }
                    // 前一数位非零的处理
                    if (!isZero) {
                        strChineseCurrency = arrChineseNum[0]
                                + strChineseCurrency;
                    }
                    isZero = true;
                }
                doubMoneyNumber = Math.floor(doubMoneyNumber / 10);
                chineseUnitIndex++;
            }
            // 负数的处理
            if (bNegative)
                strChineseCurrency = "负" + strChineseCurrency;
        } catch (Exception e) {

        }
        return strChineseCurrency;
    }
}