dopisywanie danych do pliku

try
        {
            int  ID = generateId();
            
            FileOutputStream fOut  = openFileOutput(Player.playerDataFileName,MODE_APPEND);
           
            OutputStreamWriter osw = new OutputStreamWriter(fOut );
            BufferedWriter bw = new BufferedWriter(osw);

            bw.write( ID+"\n");

            bw.flush();
            bw.close();
            osw.flush();
            osw.close();
            fOut.close();
}