java实现中文数字与阿拉伯数字互相转换

最近在作东西的时候,需要使用中文数字与阿拉伯数字进行互相转换.在网搜了一下效果并不是十分理想.没有办法只好自己动手.

    现在拿出来与大家分享,并不断完善.

 

需要注意的一些地方:

1.    目前最大上限是以亿为单位.

2.    没有实现中文大写钱数的互换.

3.    实用的是int型数字,这样上限大概是以十亿为单位.

4.    有些中文的数字习惯没有处理(“4亿”=“4万万”,“一十一”=“十一”，“零”＝“0”等等)

 

Java代码如下

 

/**

 *

 *

 *

 *@author<a href="[e-mail]">yangzhenyu</a>

 *

 *@version$Revision$

 *

 *@since2010-8-26

 */

publicclass NumberUtils {

      

    /*

     * 基本数字单位;

     */

    privatestaticfinal String[]units =

       { "千","百","十","" };//个位

   

    /*

     * 大数字单位;

     */

    privatestaticfinal String[]bigUnits =

       { "万","亿" };

   

    /*

     * 中文数字;

     */

    privatestaticfinalchar[]numChars =

       { '一','二','三','四','五','六','七','八','九' };

   

//  private static final char[] numMouneyChars =

//     { '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖' };

   

    privatestaticcharnumZero = '零';

   

    /**

     *将中文数字转换为阿拉伯数字;

     *

     *@paramnumberCN

     *@return

     */

    publicstaticint numberCN2Arab(String numberCN) {

      

       String tempNumberCN = numberCN;

      

       //异常数据处理;

       if (tempNumberCN ==null) {

           return 0;

       }

      

       /*

        * nums[0] 保存以千单位; nums[1] 保存以万单位; nums[2] 保存以亿单位;

        */

       String[] nums = new String[bigUnits.length + 1];

      

       //千位以内,直接处理;

       nums[0] = tempNumberCN;

      

       /*

        * 分割大数字,以千为单位进行运算;

        */

       for (int i = (bigUnits.length - 1); i >= 0; i--) {

          

           //是否存在大单位(万,亿...);

           int find = tempNumberCN.indexOf(bigUnits[i]);

          

           if (find != -1) {

              String[] tempStrs = tempNumberCN.split(bigUnits[i]);

             

              //清空千位内容;

              if (nums[0] !=null) {

                  nums[0] = null;

              }

             

              if (tempStrs[0] !=null) {

                  nums[i + 1] = tempStrs[0];

              }

             

              if (tempStrs.length > 1) {

                  tempNumberCN = tempStrs[1];

                 

                  if (i == 0) {

                     nums[0] = tempStrs[1];

                  }

                 

              } else {

                  tempNumberCN =null;

                 

                  break;

              }

           }

       }

      

       String tempResultNum = "";

      

       for (int i = nums.length - 1; i >= 0; i--) {

           if (nums[i] !=null) {

              tempResultNum += numberKCN2Arab(nums[i]);

           } else {

              tempResultNum += "0000";

           }

       }

      

       return Integer.parseInt(tempResultNum);

    }

   

    /**

     *将一位中文数字转换为一位数字;eg:一返回1;

     *

     *@paramonlyCNNumber

     *@return

     */

    publicstaticint numberCharCN2Arab(char onlyCNNumber) {

      

       if (numChars[0] == onlyCNNumber) {

           return 1;

       } elseif (numChars[1] == onlyCNNumber || onlyCNNumber == '两') {//处理中文习惯用法(二,两)

           return 2;

       } elseif (numChars[2] == onlyCNNumber) {

           return 3;

       } elseif (numChars[3] == onlyCNNumber) {

           return 4;

       } elseif (numChars[4] == onlyCNNumber) {

           return 5;

       } elseif (numChars[5] == onlyCNNumber) {

           return 6;

       } elseif (numChars[6] == onlyCNNumber) {

           return 7;

       } elseif (numChars[7] == onlyCNNumber) {

           return 8;

       } elseif (numChars[8] == onlyCNNumber) {

           return 9;

       }

      

       return 0;

    }

   

    /**

     *将一位数字转换为一位中文数字;eg:1返回一;

     *

     *@paramonlyArabNumber

     *@return

     */

    publicstaticchar numberCharArab2CN(char onlyArabNumber) {

      

       if (onlyArabNumber =='0') {

           returnnumZero;

       }

      

       if (onlyArabNumber >'0' && onlyArabNumber <='9') {

           returnnumChars[onlyArabNumber -'0' - 1];

       }

      

       return onlyArabNumber;

    }

   

    /**

     *

     *@paramnum

     *@return

     */

    publicstatic String numberArab2CN(Integer num) {

      

       String tempNum = num + "";

      

       //传说中的分页算法;

       int numLen = tempNum.length();

       int start = 0;

       int end = 0;

       int per = 4;

       int total = (int) ((numLen + per - 1) / per);

       int inc = numLen % per;

      

       /*

        * 123,1234,1234 四位一段,进行处理;

        */

       String[] numStrs = new String[total];

      

       for (int i = total - 1; i >= 0; i--) {

           start = (i - 1) * per + inc;

          

           if (start < 0) {

              start = 0;

           }

          

           end = i * per + inc;

          

           numStrs[i] = tempNum.substring(start, end);

       }

      

       String tempResultNum = "";

      

       int rempNumsLen = numStrs.length;

       for (int i = 0; i < rempNumsLen; i++) {

          

           //小于1000补零处理;

           if (i > 0 && Integer.parseInt(numStrs[i]) < 1000) {

              tempResultNum += numZero

                     + numberKArab2CN(Integer.parseInt(numStrs[i]));

           } else {

              tempResultNum += numberKArab2CN(Integer.parseInt(numStrs[i]));

           }

          

           //加上单位(万,亿....)

           if (i < rempNumsLen - 1) {

              tempResultNum += bigUnits[rempNumsLen - i - 2];

           }

          

       }

      

       //去掉未位的零

       tempResultNum = tempResultNum.replaceAll(numZero +"$", "");

      

       return tempResultNum;

    }

   

    /**

     *将千以内的数字转换为中文数字;

     *

     *@paramnum

     *@return

     */

    privatestatic String numberKArab2CN(Integer num) {

      

       char[] numChars = (num +"").toCharArray();

      

       String tempStr = "";

      

       int inc =units.length - numChars.length;

      

       for (int i = 0; i < numChars.length; i++) {

           if (numChars[i] !='0') {

              tempStr += numberCharArab2CN(numChars[i]) +units[i + inc];

           } else {

              tempStr += numberCharArab2CN(numChars[i]);

           }

       }

      

       //将连续的零保留一个

       tempStr = tempStr.replaceAll(numZero +"+", numZero +"");

      

       //去掉未位的零

       tempStr = tempStr.replaceAll(numZero +"$", "");

      

       return tempStr;

      

    }

   

    /**

     *处理千以内中文数字,返回4位数字字符串,位数不够以"0"补齐;

     *

     *@paramnumberCN

     *@return

     */

    privatestatic String numberKCN2Arab(String numberCN) {

      

       if ("".equals(numberCN)) {

           return"";

       }

      

       int[] nums =newint[4];

      

       if (numberCN !=null) {

          

           for (int i = 0; i <units.length; i++) {

              int idx = numberCN.indexOf(units[i]);

             

              if (idx > 0) {

                  char tempNumChar = numberCN.charAt(idx - 1);

                 

                  int tempNumInt =numberCharCN2Arab(tempNumChar);

                 

                  nums[i] = tempNumInt;

              }

           }

          

           //处理十位

           char ones = numberCN.charAt(numberCN.length() - 1);

           nums[nums.length - 1] =numberCharCN2Arab(ones);

          

           //处理个位

           if ((numberCN.length() == 2 || numberCN.length() == 1)

                  && numberCN.charAt(0) =='十') {

              nums[nums.length - 2] = 1;

           }

       }

      

       //返回结果

       String tempNum = "";

       for (int i = 0; i < nums.length; i++) {

           tempNum += nums[i];

       }

      

       return (tempNum);

    }

}