[friiz1337]

Here is my code and I can't seem to get the text file content to display when I run my program. Also I tried removing the txtNewNote.setEditable(false) still didn't work.

Code

JTextArea txtNewNote = new JTextArea();
if ("Savee".equals(ae.getActionCommand())) {
           int dialogButton = JOptionPane.YES_NO_OPTION;
           JOptionPane.showConfirmDialog(null, "Do you want to save?", "", dialogButton);
           txtNewNote.setEditable(false);

           String fileName = "CourseDetails.txt";
           String line;

           try { // writing

               BufferedWriter writer = new BufferedWriter(new FileWriter(fileName, true));
               txtNewNote.write(writer);
               writer.newLine();
               writer.close();

           } catch (IOException ex) {
               System.out.println("Error");
               // reading
               try (BufferedReader myReader = new BufferedReader(new FileReader("CourseDetails.txt"))) {
                   String text = null;
                   while ((text = myReader.readLine()) != null) {
                       txtNewNote.read(myReader, "CourseDetails");
                   }
               } catch (IOException exp) {
                   exp.printStackTrace();
               }

[m0noxide]

Code

if ("Savee".equals(ae.getActionCommand())) {

Could it be because you misspelled save?

[friiz1337]

Code

if ("Savee".equals(ae.getActionCommand())) {

Could it be because you misspelled save?

It's not it. I've named my button "Savee".

---

It's not it. I've named my button "Savee".

When the button is pressed it saves the info into a text file and that info I want to be displayed in the same text area where I write it. Basically a frame where I store notes on a text area :)

[✔ Soufian ✔]

Try this to read, it must work:

Code

try {
        FileReader file = new FileReader("CourseDetails.txt");
        BufferedReader br = new BufferedReader(file);
        String line = br.readLine();

        while (line != null) {
            System.out.println(line);
            line = br.readLine();
        }
        br.close();
    } catch (IOException e) {
        System.out.println("Error: " + e);
    }

[friiz1337]

Try this to read, it must work:

Code

   try {
       FileReader file = new FileReader("CourseDetails.txt");
       BufferedReader br = new BufferedReader(file);
       String line = br.readLine();

       while (line != null) {
           System.out.println(line);
           line = br.readLine();
       }
       br.close();
   } catch (IOException e) {
       System.out.println("Error: " + e);
   }

Doesn't work. And I have to change the string name since I've already defined it before.
What I want to do is whenever I type a text into that text area I want the text to be saved on a txt file and also to be read and shown by the text area. In short I want a text file(textarea) inside my program(frame)

---

Doesn't work. And I have to change the string name since I've already defined it before.
What I want to do is whenever I type a text into that text area I want the text to be saved on a txt file and also to be read and shown by the text area. In short I want a text file(textarea) inside my program(frame)

I've done the saving to a txt file part. But reading it and getting the output on the textarea is the big problem :/

[friiz1337]

Still struggling to figure out how to do it :/

[RootFolder]

Read from file

Code

    public static String readTextFromFile( String filepath ) throws IOException
    {
        BufferedReader reader = new BufferedReader( new FileReader( new File( filepath )));
        StringBuilder textFromFile = new StringBuilder();
        
        String line = "";
        while( ( line = reader.readLine() ) != null )
        {
            textFromFile.append( line + "\n" );
        }
        
        return textFromFile.toString();
    }

Write to file

Code

public static void writeToFile( String filepath, String textToWrite ) throws IOException
    {
        PrintWriter writer = new PrintWriter( new File( filepath ));
        writer.write( textToWrite );
        writer.close();
    }

Frame, don't know why i threw that one in..
Spoiler (Click to View)

Code

public static void main( String[] args ) throws Exception
    {
        final String testFile = "test.txt";
        JFrame frame = new JFrame();
        JTextArea textArea = new JTextArea();
        JScrollPane scrollPane = new JScrollPane( textArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER );
        JButton load = new JButton( "Load text from test.txt" );
        JButton save = new JButton( "Save to test.txt" );
        JPanel buttonPanel = new JPanel();
        buttonPanel.add( load );
        buttonPanel.add( save );
        
        frame.add( scrollPane, BorderLayout.CENTER );
        frame.add( buttonPanel, BorderLayout.SOUTH );
        load.addActionListener( new ActionListener() {
            public void actionPerformed( ActionEvent event )
            {
                try
                {
                    String text = readTextFromFile( testFile );
                    textArea.setText( text );
                    textArea.validate();
                }
                catch( IOException exception )
                {
                    System.err.println( "Couldn't read from \"" + testFile + "\"" );
                    exception.printStackTrace();
                }
            }
        });
        
        save.addActionListener( new ActionListener() {
            public void actionPerformed( ActionEvent event )
            {
                try
                {
                    writeToFile( testFile, textArea.getText() );
                }
                catch( IOException exception )
                {
                    System.err.println( "Couldn't write to \"" + testFile + "\"" );
                    exception.printStackTrace();
                }
            }
        });
        
        frame.setSize( 500, 500 );
        frame.setVisible( true );
    }

[Conejo]

You can try something like that

Code

public class ReadFileExample1 {

private static final String FILENAME = "E:\\test\\filename.txt";

public static void main(String[] args) {

BufferedReader br = null;
FileReader fr = null;

try {

//br = new BufferedReader(new FileReader(FILENAME));
fr = new FileReader(FILENAME);
br = new BufferedReader(fr);

String sCurrentLine;

while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
}

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

if (br != null)
br.close();

if (fr != null)
fr.close();

} catch (IOException ex) {

ex.printStackTrace();

}

}

}

}