# Uses of Package
javax.smartcardio

- Packages that use javax.smartcardio
  Package | Description
  --- | ---
  javax.smartcardio | Java™ Smart Card I/O API.

- Classes in javax.smartcardio used by javax.smartcardio
  Class | Description
  --- | ---
  ATR | A Smart Card's answer-to-reset bytes.
  Card | A Smart Card with which a connection has been established.
  CardChannel | A logical channel connection to a Smart Card.
  CardException | Exception for errors that occur during communication with the Smart Card stack or the card itself.
  CardTerminal | A Smart Card terminal, sometimes referred to as a Smart Card Reader.
  CardTerminals | The set of terminals supported by a TerminalFactory.
  CardTerminals.State | Enumeration of attributes of a CardTerminal.
  CommandAPDU | A command APDU following the structure defined in ISO/IEC 7816-4.
  ResponseAPDU | A response APDU as defined in ISO/IEC 7816-4.
  TerminalFactory | A factory for CardTerminal objects.