question: public Base64SharedPreferences ( Context context , String preferenceName , String secureKey , boolean encryptKeys ) throws SecurePreferencesException { try { this . writer = Cipher . getInstance ( TRANSFORMATION ) ; this . reader = Cipher . getInstance ( TRANSFORMATION ) ; this . keyWriter = Cipher . getInstance ( KEY_TRANSFORMATION ) ; initCiphers ( secureKey ) ; this . preferences = context . getSharedPreferences ( preferenceName , Context . MODE_PRIVATE ) ; this . encryptKeys = encryptKeys ; } catch ( GeneralSecurityException e ) { throw new SecurePreferencesException ( e ) ; } catch ( UnsupportedEncodingException e ) { throw new SecurePreferencesException ( e ) ; } }
target:  This will initialize an instance of the SecurePreferences class