Enquiry on converting a *.txt file to a *.pdf file

Question

Enquiry on converting a *.txt file to a *.pdf file
Aim of this software: Let the user to choose a *.txt file to convert it to a *.pdf file.
1. User clicks a choose file button. [chooseFileButton]
2. User clicks the Export 2 button [exportButton2]
3. User clicks the Text -> PDF button [pdfConverterButton]
After choosing the file and click the choose file button:
System prints out (for debbuging use...)
---------------------------Print from Trans.java - method transMemory--------------------
File's name: file.txt
File's path: C:\Users\charles\Desktop\netbean\Pdfproject1\file.txt
After clicking the Export 2 button, system prints out:
---------------Print out the File's name - from DataOut.java - getData() Method-------------------------
File's Name: file.txt
----------------Print out the file's path - from DataOut.java - getData() Method--------------
File's path: C:\Users\charles\Desktop\netbean\Pdfproject1\file.txt
The file now being read by the system: transNameData.txt
The data being copied to this file: copyOfFileName.txt Destination
This file has been copied: file.txt Original
The following content has been copied:
---start of content - from TheFile.java - save2() method---
Some content.....................................
--------end of content--------
Jul 18, 2010 3:32:04 PM mainFrame1 exportButton2ActionPerformed
SEVERE: null
java.io.IOException: Permission denied
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:199)
at java.io.DataInputStream.read(DataInputStream.java:132)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at java.io.BufferedReader.fill(BufferedReader.java:136)
at java.io.BufferedReader.readLine(BufferedReader.java:299)
at java.io.BufferedReader.readLine(BufferedReader.java:362)
at TheFile.save2(TheFile.java:144)
at mainFrame1.exportButton2ActionPerformed(mainFrame1.java:168)
at mainFrame1.access$200(mainFrame1.java:30)
at mainFrame1$3.actionPerformed(mainFrame1.java:79)
at java.awt.Button.processActionEvent(Button.java:392)
at java.awt.Button.processEvent(Button.java:360)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
After clicking the text -> PDF button, system prints out:
The following data is called by the PDF converter button...
---------------Print out the File's name - from DataOut.java - getData() Method-------------------------
File's Name: file.txt
----------------Print out the file's path - from DataOut.java - getData() Method--------------
File's path: C:\Users\charles\Desktop\netbean\Pdfproject1\file.txt
MakePdf.java is loading... - createPdf() method
File you have chosen and this file will be converted to a PDF file: file.txt
And the content of the file is:
---start of content--- (Info from MakePdf.java)
Some content.....................................
---end of content---
Print out the content again: Some content..................................... ---> Info from SubClass DocToPdf of MakePdf.java
Exception in thread "AWT-EventQueue-0" ExceptionConverter: java.io.IOException: The document has no pages.
at com.lowagie.text.pdf.PdfPages.writePageTree(Unknown Source)
at com.lowagie.text.pdf.PdfWriter.close(Unknown Source)
at com.lowagie.text.pdf.PdfDocument.close(Unknown Source)
at com.lowagie.text.Document.close(Unknown Source)
at MakePdf$DocToPdf.createDoc(MakePdf.java:140)
at MakePdf.createPdf(MakePdf.java:97)
at TheFile.forPdfUse(TheFile.java:267)
at mainFrame1.pdfConverterButtonActionPerformed(mainFrame1.java:184)
at mainFrame1.access$300(mainFrame1.java:30)
at mainFrame1$4.actionPerformed(mainFrame1.java:86)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6263)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6028)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
BUILD SUCCESSFUL (total time: 1 minute 41 seconds)

Answer 1

Source code: MakePdf.java
import com.lowagie.text.DocumentException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;
import java.lang.String;
import java.io.*;
public class TheFile {
String pathData;
String nameData;
     public void PrepareJFileChooserData2(){
        try {
            // Create a object for JFileChooser.
            final JFileChooser choose = new JFileChooser();
            choose.showOpenDialog(null);
            File file = new File(choose.getSelectedFile(), "");
            pathData = file.getPath(); //get the path of the chosen file
            nameData = file.getName(); //get the name of the chosen file
            //Try to copy file to a temp file.
            Cfile2 cfile = new Cfile2();
            cfile.writeFile(nameData); // write nameData into the temp.txt file.
            //return pathData;
        } catch (IOException ex) {
            Logger.getLogger(TheFile.class.getName()).log(Level.SEVERE, null, ex);
      public String getPathName(){
            return pathData;
      public String getNameData(){
          return nameData;
    public class Cfile2{
    public void writeFile(String fName) throws IOException {
        PrintWriter pr = new PrintWriter(new File("temp.txt"));
        pr.println();
        pr.print("\n");
        pr.write("-------------------From SubClass - Cfile2 in TheFile.java----------------------");
        pr.write("File Name: " +nameData); // write the value of nameData to temp.txt
        pr.print("\n");
        pr.write("File's Path: "+pathData); // write the value of pathData to temp.txt
        pr.print("\n");
        pr.print("-------------------------------------------------------------------------------");
        pr.flush();  // Flush the data.
        pr.close();  // Close to unlock and flush to disk.
    public void save2() throws FileNotFoundException, IOException{
       // Copy and print out the file's name only
       String fileName = "transNameData.txt";
       File originFile = new File(fileName); //open the file to read
       System.out.println("The file now being read by the system: " +originFile);  //originFile = transNameData.txt
       File destinationFile = new File("copyOfFileName.txt"); // open another file and prepare to write in
    try {
        //Start trying to write data to file - copyOfFileName.txt
      byte[] readData = new byte[2048];
      FileInputStream fis = new FileInputStream(new File(fileName)); // Seems it writes the value of transNameData.txt to copy.txt
      int count = fis.available();
      if(count>0){
      FileOutputStream fos = new FileOutputStream(destinationFile);
      int i = fis.read(readData);
      while (i != -1) {
        fos.write(readData, 0, i);
        i = fis.read(readData);
      System.out.println("The data being copied to this file: " +destinationFile+ " Destination");
      fos.flush();
      fos.close();
      fis.close();
        }else{
          System.out.print("Error");
    } catch (IOException e) {
      System.out.println(e);
    // Copy the content of the file only
    FileInputStream fstream = new FileInputStream("transNameData.txt");
    // Get the object of DataInputStream
    DataInputStream in = new DataInputStream(fstream);
    BufferedReader br = new BufferedReader(new InputStreamReader(in));
    String strLine;
    //Read File Line By Line
    while ((strLine = br.readLine()) != null)   {
      // Print the content on the console
      System.out.println ("This file has been copied: " +strLine+ " Original"); //Work successfully, strLine has the value [file's title]
      File newDestinationFile = new File("ContentCopy.txt"); //Open the newCopy.txt file
      byte[] newReadData = new byte[2048];
      FileInputStream newFileInputStream = new FileInputStream(new File(strLine)); // See whether it can write it in... ok done!
      //String newString = newReadData.toString();
      //System.out.print("Content that has been copied: " +newString); //It prints out data in byte form...?!
      FileOutputStream newFileOutputStream = new FileOutputStream(newDestinationFile);
      int i = newFileInputStream.read(newReadData);
      while (i != -1) {
        newFileOutputStream.write(newReadData, 0, i);
        i = newFileInputStream.read(newReadData);
    FileInputStream newfstream = new FileInputStream(strLine);
    // Get the object of DataInputStream
    DataInputStream newin = new DataInputStream(newfstream);
        BufferedReader newbr = new BufferedReader(new InputStreamReader(newin));
    String content;
    //Read File Line By Line
    while ((content = newbr.readLine()) != null)   {
      // Print the content on the console
        System.out.println("\n");
        System.out.println("The following content has been copied: ");
        System.out.println(" ");
        System.out.println("---start of content - from TheFile.java - save2() method---");
        System.out.println(" ");
        System.out.println(content);
        System.out.println(" ");
        System.out.println("--------end of content--------");
    //Close the input stream
    in.close();
    //Close the input stream
    in.close();
//----------- start PDF parser  ---> to txt format -------
   public void pdf() throws FileNotFoundException, IOException{
    //-----again--
   FileInputStream inStream = new FileInputStream("transNameData.txt");
    // Get the object of DataInputStream
    DataInputStream in = new DataInputStream(inStream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
    String strLine;
    //Read File Line By Line
    while ((strLine = br.readLine()) != null)   {
      // Print the content on the console
      System.out.println ("Watch out: " +strLine+ "  ---> It should be printed successfully!!"); //Work successfully
    //---again......
    PDFTextParser pdftextparser = new PDFTextParser();
    pdftextparser.pdftoText(strLine);
    public void forPdfUse() throws FileNotFoundException, IOException, DocumentException{
        MakePdf makePdf = new MakePdf();
        makePdf.createPdf();
}