Read/write file to internal private storage

Question

I\'m porting the application from Symbian/iPhone to Android, part of which is saving some data into file. I used the FileOutputStream to save the file into

Answer 1

//to write

String data = "Hello World";
OutputStreamWriter outputStreamWriter = new OutputStreamWriter(openFileOutput(FILENAME,     
Context.MODE_PRIVATE));
outputStreamWriter.write(data);
outputStreamWriter.close();

//to read

String ret = "";

    try {
        InputStream inputStream = openFileInput(FILENAME);

        if ( inputStream != null ) {
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String receiveString = "";
            StringBuilder stringBuilder = new StringBuilder();

            while ( (receiveString = bufferedReader.readLine()) != null ) {
                stringBuilder.append(receiveString);
            }

            inputStream.close();
            ret = stringBuilder.toString();
        }
    }
    catch (FileNotFoundException e) {
        Log.e(TAG, "File not found: " + e.toString());
    } catch (IOException e) {
        Log.e(TAG, "Can not read file: " + e.toString());
    }

    return ret;
}