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Groups > comp.lang.java.programmer > #25706

Re: Reading a text file

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On Feb 11, 10:42 pm, Eric Sosman <esos...@ieee-dot-org.invalid> wrote:
> On 2/11/2011 9:55 PM, bruce wrote:
>
>
>
> > On Feb 11, 9:51 pm, Eric Sosman<esos...@ieee-dot-org.invalid>  wrote:
> >> On 2/11/2011 9:26 PM, bruce wrote:
>
> >>> I am reading a file with
>
> >>>       BufferedReader reader = null;
> >>>       StringBuffer contents = new StringBuffer();
> >>>       while ((text = reader.readLine()) != null) {
> >>>                   contents.append(text)
> >>>                       .append(System.getProperty(
> >>>                           "line.separator"));
> >>>                   }
>
> >>> This code reads the file fine.  My problem is that when I put the data
> >>> into a text, it is displayed with a space character before ever
> >>> character. (bruce =>    b r u c e)
>
> >>> What am I doing wrong??
>
> >>       Something in the "it is displayed" code would be my guess.
>
> > This is how I am displaying the input text:
>
> > txtText.setText(contents.toString());
>
> > Is that the wrong way to insert the file data (contents) into the text
> > area (txtText)?
>
>      Sorry: I can't get your code to compile, much less run and
> exhibit desirable or undesirable behavior.
>
>      (In other words, STOP dripping your code out line by line by
> incomplete out-of-context line!  "Doctor, it hurts!"  "What hurts?"
> "Even worse than yesterday!"  Please provide code that is SHORT and
> SELF-CONTAINED and COMPLETE and COMPILABLE.  Yes, including the
> package and imports and class lines: Something someone who feels like
> being helpful can dump AS IS through his Java compiler and see what
> happens.  I can't debug what I can't see.  Stop teasing!)
>
> --
> Eric Sosman
> esos...@ieee-dot-org.invalid

I am sorry but including all the code is hard to do. I am using
NetBeans and it generates a lot of support code.

I don't now if you can compile it or not.  This program is a test
program to teach me how to use the JFileChooser.

I know you're trying to help and I do appreciate it.. This is the best
I can do. It does include the NetBeans generated code.

package VitalRecords;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFileChooser;
import javax.swing.JFrame;

/**
 *
 * @author Bruce
 */
public class VitalRecords extends JFrame {

    JFileChooser fc;
    BufferedReader reader = null;
    StringBuffer contents = new StringBuffer();

    /** Creates new form VitalRecords */
    public VitalRecords() {
        initComponents();
        fc = new JFileChooser();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        txtText = new javax.swing.JTextArea();
        lblFileName = new javax.swing.JLabel();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        mnuOpenFile = new javax.swing.JMenuItem();
        jMenu2 = new javax.swing.JMenu();

 
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        txtText.setColumns(20);
        txtText.setRows(5);
        jScrollPane1.setViewportView(txtText);

        lblFileName.setText("File Name: ");

        jMenu1.setText("File");

        mnuOpenFile.setText("Open File");
        mnuOpenFile.addActionListener(new
java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent
evt) {
                mnuOpenFileActionPerformed(evt);
            }
        });
        jMenu1.add(mnuOpenFile);

        jMenuBar1.add(jMenu1);

        jMenu2.setText("Edit");
        jMenuBar1.add(jMenu2);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new
javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
 
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane1,
javax.swing.GroupLayout.DEFAULT_SIZE, 703, Short.MAX_VALUE)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(lblFileName)
                .addContainerGap(625, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
 
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(13, 13, 13)
                .addComponent(lblFileName)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jScrollPane1,
javax.swing.GroupLayout.DEFAULT_SIZE, 357, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    private void mnuOpenFileActionPerformed(java.awt.event.ActionEvent
evt) {
        int returnVal = fc.showOpenDialog(VitalRecords.this);
        System.out.println(returnVal);
        if (returnVal == JFileChooser.APPROVE_OPTION) {
            File file = fc.getSelectedFile();
            String fileLabel = lblFileName.getText();
            String fileName = fc.getName(file);
            lblFileName.setText(fileLabel + fileName);
            try {

                reader = new BufferedReader(new FileReader(file));
            } catch (FileNotFoundException ex) {
 
Logger.getLogger(VitalRecords.class.getName()).log(Level.SEVERE, null,
ex);
            }
            String text = null;


            try {
                while ((text = reader.readLine()) != null) {
                contents.append(text)
                    .append(System.getProperty(
                        "line.separator"));
                }
            } catch (IOException ex) {
 
Logger.getLogger(VitalRecords.class.getName()).log(Level.SEVERE, null,
ex);
            }
            txtText.setText(contents.toString());
            System.out.println(contents.toString());

    }
    }
    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new VitalRecords().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JLabel lblFileName;
    private javax.swing.JMenuItem mnuOpenFile;
    private javax.swing.JTextArea txtText;
    // End of variables declaration

}

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Re: Reading a text file bruce <bruceaj@bellsouth.net> - 2011-02-11 20:08 -0800
  Re: Reading a text file bruce <bruceaj@bellsouth.net> - 2011-02-11 20:49 -0800
  Re: Reading a text file markspace <nospam@nowhere.com> - 2011-02-11 20:40 -0800

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