Java FileWriter how to write to next Line

问题:

I used the code below to write record into a File. The record can be written in the file, but is append in one Line, each time I call this method example:

Hello WorldHello WorldHello WorldHello World

How can I modify the code so the output look like below, so that when read the text I can use line.hasNextLine() to check?

Hello World
Hello World
Hello World
Hello World

        // Create file
        FileWriter fstream = new FileWriter(fileName, true);
        BufferedWriter out = new BufferedWriter(fstream);
        out.write(c.toString());
        //Close the output stream
        out.close();

        // Code I used to read record I am using | as a seperator name and id
        String fileName = folderPath + "listCatalogue.txt";
        String line = "";
        Scanner scanner;
        String name, id;
        scanner = new Scanner(fileName);
        System.out.println(scanner.hasNextLine());
        while (scanner.hasNextLine()) {
            line = scanner.nextLine();
            System.out.println(line);
            StringTokenizer st = new StringTokenizer(line, "|");
            name = st.nextToken();
            id = st.nextToken();
            catalogues.add(new Catalogue(name, id));
        }

回答1:

out.write(c.toString());
out.newLine();

here is a simple solution, I hope it works

EDIT: I was using "\n" which was obviously not recommended approach, modified answer.

回答2:

I'm not sure if I understood correctly, but is this what you mean?

out.write("this is line 1");
out.newLine();
out.write("this is line 2");
out.newLine();
...

回答3:

You can call the method newLine() provided by java, to insert the new line in to a file.

For more refernce -http://download.oracle.com/javase/1.4.2/docs/api/java/io/BufferedWriter.html#newLine()

回答4:

.newLine() is the best if your system property line.separator is proper . and sometime you don't want to change the property runtime . So alternative solution is appending \n