将带有换行符的字符串写入文件

Question

I have a string that I get from a TextArea. This string includes user input newlines. I want to write the entire string (including those newlines) to a file.

This is what I have now:

        FileWriter fw = new FileWriter(nm + ".txt");
        PrintWriter pw = new PrintWriter(fw);
        pw.print(txt);
        pw.close();

I've googled but I have no clue as to how I could fix my problem.

Answer 1

See in this direction:

 1. System.getProperty("line.separator");
 2. System.lineSeparator();

For example:

pw.print(txt.replace("\n", System.lineSeparator()).replace("\r\n", System.lineSeparator()));

Answer 2

You should have no problem with your code.

Anyway, if you use Java 7 you should use Files :

final Path path = Paths.get(nm + ".txt");

try (
    BufferedWriter writer = Files.newBufferedWriter(path, StandardCharsets.UTF_8,
        StandardOpenOption.APPEND, StandardOpenOption.CREATE_NEW);
) {
    writer.write(txt);
    writer.flush();
}