使用行分隔符将JTextArea中的内容保存到文件中

Question

I have a problem with writing to file.

Generally I am creating simple text editor. I load file in this way:

try(BufferedReader br = new BufferedReader(new FileReader(currentlyEditedFile))) {
            String line = "";
            editor.setText("");
            while((line = br.readLine()) != null) {
                editor.append(line + "\n");
            }
        } catch(Exception ex) {
            ex.printStackTrace();
        }

and the after some modifications, I want to save(write) it back to the file.

I am doing it in this way:

try(PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(currentlyEditedFile)))) {
            String[] lines = editor.getText().split("\\n");//Tried \n, \\n
            for(String s : lines)
                pw.println(s);
        } catch(Exception ex) {
            ex.printStackTrace();
        }

and the content goes to the file, but it is all in one line. Any ideas how to write line by line?

Answer 1

You may load content of a text file into JTextArea in following simple way:

 JTextArea textArea = new JTextArea();
 FileReader reader = new FileReader("D:/text1.txt");
 textArea.read(reader, "Content of File");
 reader.close();

You may write content of JTextArea to a file in following simple and platform independent way:

 PrintWriter pw=new PrintWriter("D:/text1.txt");
 textArea.write(pw);
 pw.close();

Hope, this is helpful to you.

Answer 2

If you are using Windows, then you should do:

editor.append(line + "\r\n");

Because the new-line in Windows is denoted by \\r\\n , ie, a carriage-return and a line-feed.