User Defined Function Output

Question

I have a UDF that converts float data into output, howevere, it add .01 in isolated cases.
The Input is as follows
<?xml version="1.0" encoding="UTF-8"?>
<ns0:MT_AMT xmlns:ns0="http://test.bob.com">
   <SSN>123456789</SSN>
   <DATA>PH80.00            170915.76 AAE</DATA>
</ns0:MT_AMT>
The out is as follows
<?xml version="1.0" encoding="UTF-8"?>
<ns0:MT_AMT1 xmlns:ns0="http://test.bob.com"><SSN>123456789</SSN><DATA>PH 80.00 170915.77AAE                                                                                </DATA></ns0:MT_AMT1>
The code is as follows
MappingTrace mTrace = container.getTrace();
GlobalContainer globalContainer = container.getGlobalContainer();
globalContainer.setParameter("Value"," ");
          //1.Map directly the source data to target data and make changes to below lengths.
          StringBuffer sBuf = new StringBuffer(a);
          //          Correction : Make the length of sBuf equal to 21 in order to reduce the risk of runtime exception
          if (sBuf.length() < 21) {
               while (sBuf.length() != 21) {
                    sBuf.append(' ');
          //2.     Schedule Hours : Format the data into "ZZ9.99" at position 3-8
          String substring = sBuf.substring(2, 8);
          substring = formatNumber(substring, 4, 6, 2);
          sBuf.replace(2, 8, substring);
          //3.     Base Rate : Format the data into "ZZZZZZ9.99" at position 9-29. The target position will be 9-18
          substring = null;
          substring = sBuf.substring(8, 29);
          substring = formatNumber(substring, 8, 10, 2);
          sBuf.replace(8, 18, substring.substring(0, 10));
          sBuf.delete(18, 29);
          //4.     Performance Rating : For now no mapping is defined
          //At last append 434 spaces to the record
          sBuf = appendSpaces(sBuf, 434);
          return sBuf.toString();
/*MappingTrace mTrace = container.getTrace();
/* mTrace.addInfo("Exception thrown  = " + ex.getMessage() + ", Legacy Invoice Number: " + globalContainer.getParameter("INVOICENUMBER").toString() + ", "  + interfaceName + ", " + lookUp + ", " + lookUpTable + ", " + keyString);
The below Function is for handling Trailer Records
     private String trailerRecord(String a, int count) {
          //1.Map directly the source data to target data and make changes to below lengths.
          StringBuffer sBuf = new StringBuffer(a);
          //2.Get the number of records from Global container and fill it at position 1-6
          //Subtract 1 to exclude the trailer record
          count = count - 1;
          Integer counter = new Integer(count);
          String substring = counter.toString();
          //3.Format the number to ZZZZZ9 format
          substring = formatNumber(substring, 7, 6, 0);
          sBuf.replace(0, 6, substring.substring(0, 6));
          //At last append 449 spaces to the record
          sBuf = appendSpaces(sBuf, 449);
          return sBuf.toString();
The below Function is for appending trailing spaces to the output record
     private StringBuffer appendSpaces(StringBuffer sub, int num) {
          for (int i = 0; i < num; i++) {
               sub.append(' ');
          return sub;
The below Function is for formatting numbers Records
     private String formatNumber(
          String input,
          int position,
          int length,
          int decPlaces)
          throws NumberFormatException {
          //17.08.2007 : If empty string has come, send back the same
          int int1 = input.lastIndexOf(' ');
          int int2 = input.length();
          if (int1 == int2) {
               return input;
          // position = actual position of dec place (e.g.4 for ZZ9.99)
          //length = actual length (e.g. 6 for ZZ9.99)
          //decPlaces = (e.g. 2 for ZZ9.99)
          //First get the input converted into float and back so as to add a decimal sign if it does not exist
          float f;
          try {
               f = Float.parseFloat(input);
                                                                                } catch (NumberFormatException ex) {
               throw new NumberFormatException(
                    "Exception Occurred:" + ex.getMessage());
          StringBuffer sb = new StringBuffer(length);
          sb.insert(0, f);
                                                                                //Identify the position of decimal sign and then shift it gradually
          int index = sb.indexOf(".");
          if (index < position && index != -1) {
               while (index < (position - 1)) {
                    sb.insert(0, " ");
                    index = sb.indexOf(".");
               /*If there is no decimal sign, put one at the desired position                         
                                        if(index == -1){
                                             int int1 = Integer.parseInt(input);
                                             sb.ins;
                                             sb.insert(position,".");
          //Fill blank spaces after decimal sign with zero
          while (sb.length() < length) {
               sb.append("0");
          return sb.toString();
Any suggestions as to why this occurs? The additional .01.

Answer 1

Hi !
Check this:
/people/thorsten.nordholmsbirk/blog/2006/04/03/never-ever-use-xis-built-in-arithmetic-functions
how to Convert  the STRING TO FLOAT.
Regards,
Matias
ps: please award points if helpful