Android adding multiple lines to file internal stroage

Question

I have a simple game app that has 3 place scoreboard and I need to save the data. I'm not sure whether I should be saving this on external or internal storage. I have managed to save a csv file in external but when testing I found it deosnt work on all devices. I am now looking at saving the data on internal storage and looking at the following standard file saving code.

String FILE_NAME = "file.txt";
    try {
        FileOutputStream fos = openFileOutput(FILE_NAME, Context.MODE_PRIVATE);
fos.write(someText.toString().getBytes());
fos.close();
} catch (Exception e) {
e.printStackTrace();
}  

The class doesnt provide any nextLine() method.

My question is should I use external or internal storage, and if im using internal storage how can I seperate each line?

Answer 1

Writing:

String FILE_NAME = "file.txt";
try {
    FileOutputStream fos = openFileOutput(FILE_NAME, Context.MODE_PRIVATE);
    PrintWriter writer = new PrintWriter( new OutputStreamWriter( fos ) );
    writer.println(someText.toString());
    writer.println(someOtherText.toString());
    writer.close();
} catch (Exception e) {
    e.printStackTrace();
}  

Reading:

String FILE_NAME = "file.txt";
try {
    FileInputStream fis = openFileInput(FILE_NAME, Context.MODE_PRIVATE);
    BufferedReader reader = new BufferedReader( new InputStreamReader( fis ) );
    String line;
    while ( (line = reader.readLine()) != null ) {
        System.out.println("Read line: " + line);
    } 
    reader.close();
} catch (Exception e) {
    e.printStackTrace();
}