SharedPreferences settings = getSharedPreferences(String n, MODE_PRIVATE);

SharedPreferences.Editor editor = settings.edit();

editor.put...(String, value)

editor.commit();

SharedPreferences settings = getSharedPreferences(String n, MODE_PRIVATE);

SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);

public static void save(String valueKey, String value) {
    SharedPreferences prefs = PreferenceManager
            .getDefaultSharedPreferences(context);
    SharedPreferences.Editor edit = prefs.edit();
    edit.putString(valueKey, value);
    edit.commit();
    }

public static String read(String valueKey, String valueDefault) {
    SharedPreferences prefs = PreferenceManager
            .getDefaultSharedPreferences(context);
   return prefs.getString(valueKey, valueDefault);
}