java textarea and input to file

Question

I'm having problems in my Java app. I wanted to transfer the texts in my JTextArea to a .txt file

for example I inputted

"Hi
my name is george"

I want the outcome in my .txt file to be the same

but what happens is

"Himy name is george"

Here's my code

private void btnCreateActionPerformed(java.awt.event.ActionEvent evt) {                                          
    String filename,content;
    String[] ArrContent=new String[9999];
    int wordctr=0;

    try
    {
        if(txtFilename.getText().isEmpty())
        {
            lblRequired.setText("Required Field");
        }else
        {
            lblRequired.setText(" ");
            filename=txtFilename.getText()+".txt";
            FileWriter fw=new FileWriter(filename);
            BufferedWriter writer = new BufferedWriter(fw);
            if(txtContent.getText().contains("\r\n"))
                writer.write("\r\n");
            writer.write(txtContent.getText());
            writer.close();
        }
    }

I think there is only a \n in the textarea. Try to change: txtContent.getText().contains("\r\n") to txtContent.getText().contains("\n") — Jens
– Jens, Commented Jul 7, 2014 at 6:50
I am a little surprised that you have to manually detect it and write it. Can you provide a fully compilable example that reproduces the behavior you are seeing? — merlin2011
– merlin2011, Commented Jul 7, 2014 at 6:53
@MadProgrammer sorry I just started java can u help me I didn't understand JTextAre#write(Writer) — newbie07
– newbie07, Commented Jul 7, 2014 at 6:56

MadProgrammer · Accepted Answer · 2014-07-07 06:56:00Z

2

Try using JTextArea#write(Writer) instead...

String filename = txtFilename.getText()+".txt";
try (FileWriter fw = new FileWriter(new File(filename))) {
    txtContent.write(fw);
} catch (IOException exp) {
    exp.printStackTrace();
}

And make sure you making best efforts to close the resources that you create...

answered Jul 7, 2014 at 6:56

MadProgrammer

348k22 gold badges243 silver badges379 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

newbie07 Over a year ago

thx... although I can't understand the difference between what I did to what you did :D but it worked! thx

MadProgrammer Over a year ago

Instead of trying to loop through the text content of the JTextArea and write that to the Writer, I passed the Writer to the JTextArea and allow it to handle it...

newbie07 Over a year ago

oh.. hmm if I will do this the other way around will it be the same? instead of using FileWriter will I use FileReader?

MadProgrammer Over a year ago

Yes, JTextArea has a read method

gprathour · Accepted Answer · 2014-07-07 06:57:38Z

0

You need to use System.lineSeparator() to write a new line to a text file.

So try something like the following

if(txtContent.getText().contains("\r\n"))
            writer.write(System.lineSeparator());

answered Jul 7, 2014 at 6:57

gprathour

15.4k5 gold badges72 silver badges92 bronze badges

Collectives™ on Stack Overflow

java textarea and input to file

2 Answers 2

4 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related