Can any body plz explain this?

Question

hi all,
I has to write a program in java for converting Excel to PDF...I got this code...but i'm clear with wht is happing here,,,and in this code they used apache.fop...i'm not able to find fop api's. plz help me out.....
public static void main(String args[]) {
     try {
          ByteArrayOutputStream fopout=new ByteArrayOutputStream();
          FileOutputStream outfile=new FileOutputStream(args[2]);
          Driver driver =new Driver();
          driver.setOutputStream(fopout);
          driver.setRenderer(Driver.RENDER_PDF);
          Transformer transformer=TransformerFactory
          .newInstance().newTransformer(new StreamSource(new File(args[1])));
          transformer.transform(new StreamSource(new File(args[0])),
          new SAXResult(driver.getContentHandler()));
          PdfReader reader = new PdfReader(fopout.toByteArray());
          int n = reader.getNumberOfPages();
          Document document = new Document(reader.getPageSizeWithRotation(1));
          PdfWriter writer = PdfWriter.getInstance(document, outfile);
          writer.setEncryption(PdfWriter.STRENGTH40BITS, "pdf", null,
          PdfWriter.AllowCopy);
          document.open();
          PdfContentByte cb = writer.getDirectContent();
          PdfImportedPage page;
          int rotation;
          int i = 0;
          while (i < n) {
          i++;
          document.setPageSize(reader.getPageSizeWithRotation(i));
          document.newPage();
          page = writer.getImportedPage(reader, i);
          rotation = reader.getPageRotation(i);
          if (rotation == 90 || rotation == 270) {
               cb.addTemplate(page, 0, -1f, 1f, 0, 0,
               reader.getPageSizeWithRotation(i).height()); }
          else {
               cb.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
          System.out.println("Processed page " + i);
          document.close();
     catch( Exception e) {
          e.printStackTrace();
regards
[email protected]

Answer 1

Okay. I think we've been here before.
How far have you got so far?
When you say "excel" do you really mean an "MS excel" file or do you mean a CSV file?
What are you using to read the excel file at the moment? Are you reading the excel file yet? Do you need to do anything with the data in the excel file? Do you have the option to retrieve the data in any other format?
What should the pdf file look like?
Please, take the time to explain your problem and circumstances. Just telling us "tell me wht is the solution for this task" doesn't cut it, "Plz " or no "Plz ".