Java APIs

Hi all ,
I have a block of code which is used to converting lables.
I have an excel sheet which contains the lables in the language "vietname" Now i am trying to import the excel sheet to update the table with corresponding label values of excel sheet.
Table are updating correctly, but where i am facing the problem is
" i am getting '?' symbol in the lables which doesn't have the '?' in the excel sheet". i have used CP1258 character set for converting the lables.

i have attached the code for clarification.
package beans.ml;
import jxl.*;
import java.sql.*;
import java.io.*;

public class Excel_to_DB {

public static void main(String ar[])
{
String xlfPath ="C:\\Documents and Settings\\administrator.DMMAIN\\Desktop\\from \\MT_LABEL_NAME-1_20June06.xls";
int row = 1; int colid = 0; int collabel = 3; //int collanguage = 0;
String label ="",language = "VET",encodingType = "Cp1258";
int id=0;

try{
Workbook workbook = Workbook.getWorkbook(new File(xlfPath));
Sheet wrsheet = workbook.getSheet(0);

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:qcctrlbl","db2admin","x");
PreparedStatement psmt = con.prepareStatement("insert into tmp_lang_word_conversion values(?,?,?)");

Statement smt = con.createStatement();

do{
label ="";
Cell cid = wrsheet.getCell(colid,row);
Cell clabel = wrsheet.getCell(collabel,row);


try{
if(cid.getContents().trim().equals(""))
break;
id = Integer.parseInt(cid.getContents());

psmt.setString(1,language);
psmt.setInt(2,id);
if(!language.trim().equalsIgnoreCase("ENG"))
{
ResultSet lrs = smt.executeQuery("select character_set from mt_language where language_code = '"+language+"'");
lrs.next();
encodingType = lrs.getString("character_set");
System.out.println(" ec "+encodingType);
if(!clabel.getContents().trim().equals(""))
{
psmt.setBytes(3,clabel.getContents().trim().getBytes(encodingType));
}else
{
psmt.setString(3,clabel.getContents());
}
}else
{
label = clabel.getContents();
psmt.setString(3,label);
}
}catch(Exception ex)
{
label = clabel.getContents();
psmt.setString(3,label);
ex.printStackTrace();
}

if( !cid.getContents().trim().equalsIgnoreCase(""))
{
try{

psmt.executeUpdate();
}catch(Exception ex)
{
try{
PreparedStatement psmtinst = con.prepareStatement("update lang_word_conversion set converted_label = ? where label_id = ? and language_code = ? ");
if(!language.trim().equalsIgnoreCase("ENG"))
{
ResultSet lrs1 = smt.executeQuery("select character_set from mt_language where language_code = '"+language+"'");
lrs1.next();
encodingType = lrs1.getString("character_set");
if(!clabel.getContents().trim().equals(""))
{
psmtinst.setBytes(1,clabel.getContents().trim().getBytes(encodingType));
}else
{
psmtinst.setString(1,clabel.getContents());
}
}else
{
label = clabel.getContents();
psmtinst.setString(1,label);
}

psmtinst.setInt(2,id);
psmtinst.setString(3,language);
psmtinst.execute();
}catch(Exception ex1)
{
ex1.printStackTrace();
}
}
}
row++;
System.out.println(" "+id+" "+label);
}while(true);
workbook.close();
System.out.println("Completed ");
}catch(Exception ex){
System.out.println("psmt "+row);
ex.printStackTrace();

}
}
}

Pls advise me

Thanks in advance
malli