public class RenMingBi {

    private static final char[] data = new char[] { '零', '壹', '贰', '叁', '肆',

            '伍', '陆', '柒', '捌', '玖' };

    private static final char[] units = new char[] { '元', '拾', '佰', '仟', '万',

            '拾', '佰', '仟', '亿','拾', '佰', '仟'};

    // 简单那整数    int：-2147483648~2147483647

    public static String convert(long money) {

        StringBuffer sbf = new StringBuffer(40);

        int unit = 0;

        while (money != 0) {

            sbf.insert(0,units[unit++]);

            int number = (int) money % 10;

            sbf.insert(0, data[number]);

            money /= 10;

        }

        // System.out.println(sbf.toString());

        return sbf.toString().replaceAll("零[拾佰仟]", "零").replaceAll("零+亿","亿").replaceAll("零+万", "万")

                .replaceAll("零+元", "元").replaceAll("零+", "零").replaceAll("亿万", "亿");

    }

    //复杂带小数 long    :-2^63    +2^63-1

    public static String convert(double value) {

        long midVal = (long) (value * 100);

        String valStr = String.valueOf(midVal); // 转化成字符串

        String rail = valStr.substring(valStr.length() - 2); // 取小数部分

        long preint = (midVal / 100);

        String prefix = convert(preint);

        String suffix = "";

        // 处理小数点后面的数

        if (rail.equals("00")) {

            suffix = "整";

        } else {

            suffix = data[rail.charAt(0) - '0'] + "角" + data[rail.charAt(1) - '0'] + "分";

        }

        return prefix + suffix; // 返回正确表示

    }

    public static void main(String[] args) {

          System.out.println(convert(2000000007));

          System.out.println(convert(2000000007.211));

    }

}