//prva f-cija
File sdCard = Environment.getExternalStorageDirectory();
            File directory = new File (sdCard.getAbsolutePath() +
                "/MyFiles");
            directory.mkdirs();
            File file = new File(directory, "textfile.txt");
            FileOutputStream fOut = new FileOutputStream(file);

//druga f-cija
 File sdCard = Environment.getExternalStorageDirectory();
            File directory = new File (sdCard.getAbsolutePath() + 
                "/MyFiles");
            File file = new File(directory, "textfile.txt");
            FileInputStream fIn = new FileInputStream(file);
            InputStreamReader isr = new InputStreamReader(fIn);