How to read a .xls file ?

Hi,
Is it possible to read a row of an excell file (.xls) by using a BufferedReader in JAVA?
I tried it by using the method readLine() but this didn't really work, it can read a line of a .txt file but when I use it on an .xls the result is just bogus. How do I have to do that?

Hi
I am trying to read an excel fle using jexcel API to convert to csv format. The code works fine and i am able to run it on jdk 1.4 . The program converts the xls into csv.
But when I load the same program into Oracle 9i DB with java version 1.5, i get java.lang.AbstractMethodError .
There is a method called extractSheet which is an abstract method. But this doesnt seem to cause any problems on jdk 1.4
Please sugguest what can be done.
regards
Satya

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How to create a xls file from String [ ][ ]

Hi, I have a java class where I can read the content of files xls and store this information in a String [][].
But now, I have to do the opposite.
I have a String[][] where the information is. And I have to guard this information in a file xls.
My code when I read xls to String[][] is:
import java.io.*;
import java.io.File;
import jxl.Workbook;
import jxl.Sheet;
import jxl.Cell;
import jxl.*;
public class ReadfichExcel
    private static int numCols;
    private static int numRows;
public static String[] dimensionFile(String pathFolder, String file){
    String [] dimension = new String[2];
    try{
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        Sheet hoja = libro.getSheet(0);
        numRows = hoja.getRows();
        numCols = hoja.getColumns();
    catch (Exception e)
        e.printStackTrace();
        return null;
    dimension[0] = String.valueOf(numRows);
    dimension[1] = String.valueOf(numCols);
    return dimension;
}How can I do to create a file xls with the information of a String [] []?
Thanks very much

I have solved the problem:
http://www.andykhan.com/jexcelapi/tutorial.html#writing
What do you want to do then? Do you want to read the contents of the Excel file into the array?I only wanted to create a xls file with the information I have in a String[][]. The code I posted before is the code I ussually use to read a xls file.
Next to create and write a xls file I'd do:
public static int CreateTemp (File folderUser, String file, String [][] table)
    int exito = 0;
    int rows = table.length;
    int cols = table[0].length;
    if (!folderUser.exists())
        folderUser.mkdir();
    try
        WritableWorkbook libro = Workbook.createWorkbook(new File(folderUser+"/"+file));
        WritableSheet hoja = libro.createSheet("First Sheet",0);
        // BEGIN TO WRITE
        for (int i=0;i<rows;i++)
            for (int j=0; j<cols;j++)
                Label label = new Label(j, i, table[i][j]);
                hoja.addCell(label);
        }// FOR
        // All sheets and cells added. Now write out the workbook
        libro.write();
        libro.close();
        exito = 1;
    } catch (Exception e)
            e.printStackTrace();
            return 0;
    return exito;
}Another question. As I want to copy into the xls file the information in the String[][], Is right to do this using as follow:
Label label = new Label(j, i, table[i][j]);
hoja.addCell(label); (there will be characters and numbers in the cells)
Thanks for your response.

How to read an excel file in webdynpro application

Hello Experts,
Can someone please tell me how to read an excel file in a webdynpro application?
There is a tutorial for how to write contect into an excel, but i want to read the excel.
Can someone help please !!
Thanks and Kind regards,
G.Singh.

Hello Experts,
I have done all the given above.
I want to read a excel file from KM. My code is as below
ResourceContext resourceContext = buildResourceContext();
IResourceFactory resourceFactory = ResourceFactory.getInstance();
RID pathRID = RID.getRID("/documents/ExcelReport.xls");
IResource resource = resourceFactory.getResource(pathRID, resourceContext);
Workbook wb = Workbook.getWorkbook(resource.getURI().getPath());
Sheet sh = wb.getSheet(0);
int columns = sh.getColumns();
int rows = sh.getRows();
wdComponentAPI.getMessageManager().reportSuccess(" Rows: " + rows);
wdComponentAPI.getMessageManager().reportSuccess(" Columns: " + columns);
This does not give me the excel file form the KM
Can you please just what i can do at this point?
Kind Regards,
G Singh.

1.is it possible to read a .xls file and load it into an oracle table

1.is it possible to read a .xls file and load it into an oracle table, using oracle database or oracle forms i.e. either utl_file, or text_io, or any other oracle tool.
As far as I know we need a csv file or a txt ( tab delimited) file ?
2.Are there any windows tools for the same

Hi,
If you want to use the DDE package to read the XLS file then yes, you will neeed to know the number of rows and columns in the input file.
i.e. How will you know :
1) How many columns are there in the input file.
If I have a XLS file with the following data :
R1C1 R1C2 R1C3 R1C4 R1C5 R1C6 R1C7
xxx xx x
Where R represents row and C represents column, then how will you know the each row has 7 columns. If you know the answer upfront, then it's not a issue.
Using the DDE apprach, you will have to specify the RowNum and the ColumnNo of each idividual cells to read/write data from xls sheet.
Look at the syntax in my ealier post.
using the other approch (i.e. comma delimited text file - CSV file) , you need not know the number of columns as you can loop thru the input record till the last column is read.
All you have to do is to look for the 'n' occurances of the field delimiter say ',', do a substr from the current position to the point where the ',' was found.
This process is to be repeated in a loop till all columns are read.
The TEXT_IO package can trap for EOF (End Of File).
Hope I made myself clear.
-- Shailender Mehta --

How to convert an .xls file to .csv file using procedure or function

Hi All,
My requirement is as follows.
1. In my database server(linux), my excel file will be loaded in a particular directory.
2. I need to load this excel file's data into an external table.
3. Can i load the data from an excel file to table directly? Or do i have to change the format into .csv, if so how to conver the .xls file to .csv file via backend.
Please help me.
Regards,
Sakthi.

Have a look at this
PLSQL UTL_FILE problem
http://kr.forums.oracle.com/forums/thread.jspa?threadID=895803
Regards,
Yohanes 林贤汉

How to read several text files at a time

Dear all
Read and write one text file is not a problem, but what confusies me is how to read several text files at one time, in the meanwhile,
is it possible to display the name of the text file?
For example, assuming I want to load file" cha 1, cha 2 , cha 3, " at one time and show their names, how to hadle with it
I have reviewed some files and it is not helpful

Either with a 'for' loop like in the lib you have attached, or like this attached VI
that's it
Message Edited by devchander on 05-30-2006 05:11 AM
Attachments:
MULTIPLE READ.vi ‏44 KB

How to read multiple dat files.

Hello Everyone!
I am working on a project that requires one file that creates a JFrame with a current file title, JTextFields that accesses two .dat files and a JButton.
The user clicks a JButton to cycle through the first sequential .dat file. When the end of the first file is reached the file is closed, the JFrame title is changed to the second file title as the user continues to click the JButton to continue on viewing the second file?s records, until the second reaches the end of file.
The project requires using Try-Catches to catch the EOF exceptions and IOExceptions and Thread or Runnable.
I have been able to get one file to read and display its records; however, researching back through my text on how to read/write to files I haven?t been able to determine how to get to the end of the file and proceed to the next file without triggering the EOFException. I have even tried multiple Try-Catches (one for each file within the actionPerformed method) and that ends up ignoring the first file records and only displays the second files records.
This is a school project and we have only covered just the bare basics of Java over the last two months. So, any hints that anyone can provide can only be of what type of procedure will be needed or what procedure won?t help to complete the task, without giving away the solution.
I have spent approximately 40 hours of study time on this project and believe that I have definitely run into a major snag.
The following is the code I have so far:
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class StudentRead extends JFrame implements ActionListener
   private JLabel gradStudentList = new JLabel("GRADUATE Student List");
   private JLabel undergradStudentList = new JLabel("UNDERGRADUATE Student List");
   private Font bigFont = new Font("Helvetica", Font.ITALIC, 24);
   private JLabel userprompt = new JLabel("View the students");
   private JTextField idNumText = new JTextField(4);
   private JTextField lastNameText = new JTextField(15);
   private JTextField firstNameText = new JTextField(15);
   private JButton viewRecordButton = new JButton("View Record");
   private JLabel idNumberLabel = new JLabel("ID Number");
   private JLabel lastNameLabel = new JLabel("Last name");
   private JLabel firstNameLabel = new JLabel("First name");
   private Container con = getContentPane();
   DataInputStream gradStudentInStream;
   DataInputStream undergradStudentInStream;
   public StudentRead()
      super("Read Student Records");
      try
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         undergradStudentInStream = new DataInputStream(new FileInputStream("UndergradStudents.dat"));
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         System.err.println("File not opened");
         System.exit(1);
      setSize(325, 200);
      con.setLayout(new FlowLayout());
      gradStudentList.setFont(bigFont);
      con.add(gradStudentList);
      con.add(userprompt);
      con.add(idNumberLabel);
      con.add(idNumText);
      con.add(lastNameLabel);
      con.add(lastNameText);
      con.add(firstNameLabel);
      con.add(firstNameText);
      con.add(viewRecordButton);
      viewRecordButton.addActionListener(this);
      setVisible(true);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   public void actionPerformed(ActionEvent e1)
      String lastName, firstName;
      int IdNum;
      try
         IdNum = gradStudentInStream.readInt();
         lastName = gradStudentInStream.readUTF();
         firstName = gradStudentInStream.readUTF();
         idNumText.setText(String.valueOf(IdNum));
         lastNameText.setText(lastName);
         firstNameText.setText(firstName);
      catch(EOFException e2)
         closeFile();
         System.exit(0);
      catch(IOException e3)
         System.err.println("Error reading file");
         System.out.println("out");
         System.exit(1);
   public void closeFile()
      try
         gradStudentInStream.close();
         System.exit(0);
      catch(IOException e)
         System.err.println("Error closing file");
         System.exit(1);
   public static void main(String[] args)
      StudentRead rsr = new StudentRead();
}

deepak_1your.com wrote:
hi,
If you want to read a file guarding yourself agianst exceptions....
check this article.... the code presented in this article might suit your needs...
[http://1your.com/fusion/infusions/articles/readarticle.php?article_id=17|http://1your.com/fusion/infusions/articles/readarticle.php?article_id=17]
And how does that help with a DataInputStream?

What is the best, most efficient way to read a .xls File and create a pipe-delimited .csv File?

What is the best and most efficient way to read a .xls File and create a pipe-delimited .csv File?
Thanks in advance for your review and am hopeful for a reply.
ITBobbyP85

You should have no trouble doing this in SSIS. Simply add a data flow with connection managers to an existing .xls file (excel connection manager) and a new .csv file (flat file). Add a source to the xls and destination to the csv, and set the destination
csv parameter "delay validation" to true. Use an expression to define the name of the new .csv file.
In the flat file connection manager, set the column delimiter to the pipe character.

How to read an xml file from headers

Hi ,
I am not getting how to read an xml file sent by client device in header to server.
Thankx.

There is a getHeader() in HttpServletRequest interface
String locationURL=request.getHeader("Location");If URL of your file was set in Location attribute of header.
Edited by: ngpgeeta on Dec 19, 2008 8:03 AM

How to read a text file using Java

Guys,
Good day!
Please help me how to read a text file using Java and create/convert that text file into XML.
Thanks and God Bless.
Regards,
I-Talk

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             File aFile =new File("myFile.txt");
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         try {
           input = new BufferedReader( new FileReader(aFile) );
           String line = null;
           while (( line = input.readLine()) != null){
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           ex.printStackTrace();
         catch (IOException ex){
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cheers
Mohammed Jubaer Arif.

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Hi,
Anyone knows how to read a CAB File from java. I need to read a property file of txt file that is packaged in CAB file & then based on that, I have to do processing. Is there anyway to do it.
I had tried using java.util.zip.ZipFile Class, but it does work for JAR, but not for CAB.
siva.

Perhaps there's something in the Cabinet SDK that will help:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncabsdk/html/cabdl.asp

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I have developed one webdynpro application. In this application i need to access mdm server to continue. For getting the connection i need to pass the IP addresses.
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servername="abcServer"
username="john"
password="test123"
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Hi Vijay,
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//try retrieve data from file
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I usually recommend use Trace Analyzer (TRCA), Note:224270.1
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Hi
Im new in java and dont know many thing about it, I want to know how can read an ARPA file in java.
pleas describ it step bye step and esy to understand.
Edited by: 836719 on Feb 14, 2011 8:15 PM

836719 wrote:
ok i explain what i want to do maybe u can help me more,
i want to read an arpa file and search it to find for example a word.so u think which method that u mentioned above is beter???
It will be pleasure if u have any tip that can help me.1. Learn the basics of programming as well as how to logically construct and deconstruct a problem domain.
2. Learn the basics of programming java.
3. Learn about java.io.*
4. Learn about java swing
5. Find documentation that describes the format of the ARPA file.
6. Read the documentation and understand it.
7. Find a source for ARPA files (if this is online then there is more java to learn as well.)
8. Use 1,2 and 3 to write java code that consumes the ARPA file.
9. Use 4 to ask the user for a word.
10. Use 1 and 2 to write code that 'searches' what you read in 8.

How to read a .xls file ?

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