Insert line break when writing to file?

Question

So My code looks like this:

try {
    while ((line = br.readLine()) != null) {
        Matcher m = urlPattern.matcher (line);
        while (m.find()) {
            System.out.println(m.group(1));

            //the println puts linebreak after each find

            String filename= "page.txt";
            FileWriter fw = new FileWriter(filename,true);
            fw.write(m.group(1));
            fw.close();

            //the fw writes everything after each find with no line break
    }
}

I get right form of output at line System.out.println(m.group(1)); However when I later on want to write what is shown by m.group(1) It writes to file without putting linebreak since the code doesn't have one.

Answer 1

Just call fw.write(System.getProperty("line.separator"));.

System.getProperty("line.separator") will give you the line separator for your platform (whether Windows or some Unix flavor).