public class Reader {
  private String strNum;
  private String strNumChFormat;
  private String strNumTemp;
  private int intNumLen;
  private String strBegin;
  public Reader(String strNum) {
　　this.strNum = strNum;
  }

public boolean check(String strNum) {
　　boolean valid = false;
　　
　　if (strNum.substring(0,1).equals("0")){
 　　this.strNum = strNum.substring(1);
　　}
　　try {
  　　new Double(strNum);
  　　valid = true;
　　} catch (NumberFormatException ex) {
  　　System.out.println("Bad number format!");
　　}
　　return valid;
  }

public void init() {
　　strNumChFormat = "";
　　intNumLen = strNum.length();
　　strNumTemp = strNum;
　　strNumTemp = strNumTemp.replace('1', '一');
　　strNumTemp = strNumTemp.replace('2', '二');
　　strNumTemp = strNumTemp.replace('3', '三');
　　strNumTemp = strNumTemp.replace('4', '四');
　　strNumTemp = strNumTemp.replace('5', '五');
　　strNumTemp = strNumTemp.replace('6', '六');
　　strNumTemp = strNumTemp.replace('7', '七');
　　strNumTemp = strNumTemp.replace('8', '八');
　　strNumTemp = strNumTemp.replace('9', '九');
　　strNumTemp = strNumTemp.replace('0', '零');
　　strNumTemp = strNumTemp.replace('.', '点');
　　strBegin = strNumTemp.substring(0, 1);
  }

public String readNum() {
　　if (check(strNum)) {
  　　init();
  　　try {
    　　for (int i = 1, j = 1, k = 1; i < intNumLen; i++) {
      　　if (strNumTemp.charAt(intNumLen - 1) == '零' && i == 1) {
        　　strNumChFormat = "位";
      　　}
      　　else if (strNumTemp.charAt(intNumLen - i) == '零' && j == 1) {
        　　strNumChFormat = "位" + strNumChFormat;
      　　}
      　　else if (strNumTemp.charAt(intNumLen - i) == '点') {
        　　j = 1;
        　　k = 1;
        　　strNumChFormat = strNumTemp.charAt(intNumLen - i) + strNumChFormat;
        　　continue;
      　　}
      　　else {
        　　strNumChFormat = strNumTemp.charAt(intNumLen - i) + strNumChFormat;
      　　}
      　　if (strNumTemp.charAt(intNumLen - i - 1) != '位' &&
          　　strNumTemp.charAt(intNumLen - i - 1) != '零') {
        　　if (j == 1 && i < intNumLen) {
          　　strNumChFormat = '拾' + strNumChFormat;
        　　}
        　　else if (j == 2 && i < intNumLen) {
          　　strNumChFormat = '百' + strNumChFormat;
        　　}
        　　else if (j == 3 && i < intNumLen) {
          　　strNumChFormat = '千' + strNumChFormat;
        　　}
      　　}
      　　if (j == 4 && i < intNumLen) {
        　　j = 0;
      　　}
      　　if (k == 4 && i < intNumLen) {
        　　strNumChFormat = '万' + strNumChFormat;
      　　}
      　　else if (k == 8 && i < intNumLen) {
        　　k = 0;
        　　strNumChFormat = '亿' + strNumChFormat;
      　　}
      　　j++;
      　　k++;
    　　}
    　　while (strNumChFormat.indexOf("位") != -1) {
      　　strNumChFormat = strNumChFormat.replaceAll("位", " ");
    　　}
    　　if (strNumChFormat.substring(0, 2) == "一拾") {
      　　strNumChFormat = strNumChFormat.substring(1, strNumChFormat.length());
    　　}
    　　if (strNumChFormat.indexOf("点") >= 0) {
      　　String rebegin = strNumChFormat.substring(0,
          　　strNumChFormat.indexOf("点"));
      　　String relast = strNumChFormat.substring(strNumChFormat.indexOf("点"),
          　　strNumChFormat.length());
      　　for (int i = 1; i <= relast.length(); i++) {
        　　relast = relast.replaceAll("拾", "");
        　　relast = relast.replaceAll("百", "");
        　　relast = relast.replaceAll("千", "");
        　　relast = relast.replaceAll("万", "");
        　　relast = relast.replaceAll("亿", "");
      　　}
      　　strNumChFormat = rebegin + relast;
    　　}
  　　}
  　　catch (ArrayIndexOutOfBoundsException ex) {
    　　ex.printStackTrace();
  　　}
  　　catch (Exception ex) {
    　　ex.printStackTrace();
  　　}
  　　int off = strNumChFormat.indexOf("点");
  　　strNumChFormat = strBegin + strNumChFormat.substring(0);
　　}
　　else {
  　　strNumChFormat = "";
　　}
　　return strNumChFormat;
  }
  public static void main(String args[]) {
　　try {
  　　String number = args[0].toString();
  　　System.out.println("The number is: " + number);
  　　Reader reader = new Reader(number);
  　　System.out.println("Output String: " + reader.readNum());
　　}
　　catch (Exception ex) {
  　　System.out.println("Please input like that: javac Reader <number></number>");
　　}
  }
}