write file to internal storage android

1public static boolean saveToInternalStorage(String data, String filename, Context context) throws IOException {
2  FileOutputStream fos = context.openFileOutput(filename, Context.MODE_PRIVATE);
3  //default mode is PRIVATE, can be APPEND etc.
4  fos.write(data.getBytes());
5  fos.close();
6  return true;
7}
8
9public static String readFileFromInternalStorage(String filename, Context context) throws IOException {
10  FileInputStream fis = context.openFileInput(filename);
11  InputStreamReader isr = new InputStreamReader(fis);
12  BufferedReader bufferedReader = new BufferedReader(isr);
13  StringBuilder sb = new StringBuilder();
14  String line;
15  while ((line = bufferedReader.readLine()) != null) {
16    sb.append(line);
17  }
18  bufferedReader.close();
19  return sb.toString();
20}