人民币大小写转

String HanDigiStr[] = new String[]{"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};

      String HanDiviStr[] = new String[]{"","拾","佰","仟","万","拾","佰","仟","亿",
          "拾","佰","仟","万","拾","佰","仟","亿",
          "拾","佰","仟","万","拾","佰","仟" };

     /**
      * 输入字符串必须正整数，只允许前导空格(必须右对齐)，不宜有前导零
      * @param NumStr
      * @return
      *  */
      String PositiveIntegerToHanStr(String NumStr)
      {
       String RMBStr = "";
       boolean lastzero = false;
       boolean hasvalue= false;       // 亿、万进位前有数值标记
       int len,n;
       len = NumStr.length();
       if( len > 15 ) return "数值过大!";
       for(int i=len-1;i>=0;i--) {
        if( NumStr.charAt(len-i-1)==' ' ) continue;
        n = NumStr.charAt(len-i-1) - '0';
        if( n<0 || n>9 ) return "输入含非数字字符!";

        if( n!=0 ) {
         if( lastzero ) RMBStr += HanDigiStr[0];  // 若干零后若跟非零值，只显示一个零
                 // 除了亿万前的零不带到后面
         //if( !( n==1 && (i%4)==1 && (lastzero || i==len-1) ) )    // 如十进位前有零也不发壹音用此行
         if( !( n==1 && (i%4)==1 && i==len-1 ) )     // 十进位处于第一位不发壹音
          RMBStr += HanDigiStr[n];
         RMBStr += HanDiviStr[i];    // 非零值后加进位，个位为空
         hasvalue = true;                                    // 置万进位前有值标记

        }else {
         if( (i%8)==0 || ((i%8)==4 && hasvalue) )  // 亿万之间必须有非零值方显示万
          RMBStr += HanDiviStr[i];   // “亿”或“万”
        }
        if( i%8==0 ) hasvalue = false ;      // 万进位前有值标记逢亿复位
        lastzero = (n==0) && (i%4!=0);
        }

       if( RMBStr.length()==0 ) return HanDigiStr[0];         // 输入空字符或"0"，返回"零"
       return RMBStr;
      }

     /**
      *
      * @param val
      * @return
      *  */
     public  String NumToRMBStr(double val)
      {
       String SignStr ="" ;
       String TailStr ="";
       long  fraction, integer;
       int jiao,fen;

       if( val<0 ) {
        val = -val;
        SignStr = "负";
        }
       if(val > 99999999999999.999 || val <-99999999999999.999 ) return "数值位数过大!";
       // 四舍五入到分
       long temp = Math.round(val*100);
       integer = temp/100;
       fraction = temp%100;
       jiao = (int)fraction/10;
       fen = (int)fraction%10;
       if( jiao==0 && fen==0 ) {
        TailStr = "整";
        }
       else {
        TailStr = HanDigiStr[jiao];
        if( jiao!=0 )
         TailStr += "角";
        if( integer==0 && jiao==0 )                // 零元后不写零几分
         TailStr = "";
        if( fen!=0 )
         TailStr += HanDigiStr[fen] + "分";
        }

      // 下一行可用于非正规金融场合，0.03只显示“叁分”而不是“零元叁分”
      //        if( !integer ) return  SignStr+TailStr;

       return SignStr+PositiveIntegerToHanStr(String.valueOf(integer) )+"元"+TailStr;
      }