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## org.apache.commons.net.telnet
Class TelnetOption

    java.lang.Object
      |
      +--org.apache.commons.net.telnet.TelnetOption

public class TelnetOption
extends java.lang.Object

The TelnetOption class cannot be instantiated and only serves as a storehouse for telnet option constants.

Details regarding Telnet option specification can be found in RFC 855.

Author:
  Daniel F. Savarese
See Also:
  `Telnet`, `TelnetClient`

Field Summary
`static int` | `APPROXIMATE_MESSAGE_SIZE`
`static int` | `AUTHENTICATION`
`static int` | `BINARY`
`static int` | `BYTE_MACRO`
`static int` | `DATA_ENTRY_TERMINAL`
`static int` | `ECHO`
`static int` | `ENCRYPTION`
`static int` | `END_OF_RECORD`
`static int` | `EXTENDED_ASCII`
`static int` | `EXTENDED_OPTIONS_LIST`
`static int` | `FORCE_LOGOUT`
`static int` | `LINEMODE`
`static int` | `MAX_OPTION_VALUE` The maximum value an option code can have.
`static int` | `NEGOTIATE_CARRIAGE_RETURN`
`static int` | `NEGOTIATE_FORMFEED`
`static int` | `NEGOTIATE_HORIZONTAL_TAB`
`static int` | `NEGOTIATE_HORIZONTAL_TAB_STOP`
`static int` | `NEGOTIATE_LINEFEED`
`static int` | `NEGOTIATE_OUTPUT_LINE_WIDTH`
`static int` | `NEGOTIATE_OUTPUT_PAGE_SIZE`
`static int` | `NEGOTIATE_VERTICAL_TAB`
`static int` | `NEGOTIATE_VERTICAL_TAB_STOP`
`static int` | `NEW_ENVIRONMENT_VARIABLES`
`static int` | `OLD_ENVIRONMENT_VARIABLES`
`static int` | `OUTPUT_MARKING`
`static int` | `PREPARE_TO_RECONNECT`
`static int` | `REGIME_3270`
`static int` | `REMOTE_CONTROLLED_TRANSMISSION`
`static int` | `REMOTE_FLOW_CONTROL`
`static int` | `SEND_LOCATION`
`static int` | `STATUS`
`static int` | `SUPDUP`
`static int` | `SUPDUP_OUTPUT`
`static int` | `SUPPRESS_GO_AHEAD`
`static int` | `TACACS_USER_IDENTIFICATION`
`static int` | `TERMINAL_LOCATION_NUMBER`
`static int` | `TERMINAL_SPEED`
`static int` | `TERMINAL_TYPE`
`static int` | `TIMING_MARK`
`static int` | `WINDOW_SIZE`
`static int` | `X_DISPLAY_LOCATION`
`static int` | `X3_PAD`

Method Summary
`static java.lang.String` | `getOption(int code)` Returns the string representation of the telnet protocol option corresponding to the given option code.
`static boolean` | `isValidOption(int code)` Determines if a given option code is valid.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### MAX_OPTION_VALUE

    public static final int MAX_OPTION_VALUE

  The maximum value an option code can have. This value is 255.

  See Also:
    Constant Field Values

### BINARY

    public static int BINARY

### ECHO

    public static int ECHO

### PREPARE_TO_RECONNECT

    public static int PREPARE_TO_RECONNECT

### SUPPRESS_GO_AHEAD

    public static int SUPPRESS_GO_AHEAD

### APPROXIMATE_MESSAGE_SIZE

    public static int APPROXIMATE_MESSAGE_SIZE

### STATUS

    public static int STATUS

### TIMING_MARK

    public static int TIMING_MARK

### REMOTE_CONTROLLED_TRANSMISSION

    public static int REMOTE_CONTROLLED_TRANSMISSION

### NEGOTIATE_OUTPUT_LINE_WIDTH

    public static int NEGOTIATE_OUTPUT_LINE_WIDTH

### NEGOTIATE_OUTPUT_PAGE_SIZE

    public static int NEGOTIATE_OUTPUT_PAGE_SIZE

### NEGOTIATE_CARRIAGE_RETURN

    public static int NEGOTIATE_CARRIAGE_RETURN

### NEGOTIATE_HORIZONTAL_TAB_STOP

    public static int NEGOTIATE_HORIZONTAL_TAB_STOP

### NEGOTIATE_HORIZONTAL_TAB

    public static int NEGOTIATE_HORIZONTAL_TAB

### NEGOTIATE_FORMFEED

    public static int NEGOTIATE_FORMFEED

### NEGOTIATE_VERTICAL_TAB_STOP

    public static int NEGOTIATE_VERTICAL_TAB_STOP

### NEGOTIATE_VERTICAL_TAB

    public static int NEGOTIATE_VERTICAL_TAB

### NEGOTIATE_LINEFEED

    public static int NEGOTIATE_LINEFEED

### EXTENDED_ASCII

    public static int EXTENDED_ASCII

### FORCE_LOGOUT

    public static int FORCE_LOGOUT

### BYTE_MACRO

    public static int BYTE_MACRO

### DATA_ENTRY_TERMINAL

    public static int DATA_ENTRY_TERMINAL

### SUPDUP

    public static int SUPDUP

### SUPDUP_OUTPUT

    public static int SUPDUP_OUTPUT

### SEND_LOCATION

    public static int SEND_LOCATION

### TERMINAL_TYPE

    public static int TERMINAL_TYPE

### END_OF_RECORD

    public static int END_OF_RECORD

### TACACS_USER_IDENTIFICATION

    public static int TACACS_USER_IDENTIFICATION

### OUTPUT_MARKING

    public static int OUTPUT_MARKING

### TERMINAL_LOCATION_NUMBER

    public static int TERMINAL_LOCATION_NUMBER

### REGIME_3270

    public static int REGIME_3270

### X3_PAD

    public static int X3_PAD

### WINDOW_SIZE

    public static int WINDOW_SIZE

### TERMINAL_SPEED

    public static int TERMINAL_SPEED

### REMOTE_FLOW_CONTROL

    public static int REMOTE_FLOW_CONTROL

### LINEMODE

    public static int LINEMODE

### X_DISPLAY_LOCATION

    public static int X_DISPLAY_LOCATION

### OLD_ENVIRONMENT_VARIABLES

    public static int OLD_ENVIRONMENT_VARIABLES

### AUTHENTICATION

    public static int AUTHENTICATION

### ENCRYPTION

    public static int ENCRYPTION

### NEW_ENVIRONMENT_VARIABLES

    public static int NEW_ENVIRONMENT_VARIABLES

### EXTENDED_OPTIONS_LIST

    public static int EXTENDED_OPTIONS_LIST

Method Detail

### getOption

    public static final java.lang.String getOption(int code)

  Returns the string representation of the telnet protocol option corresponding to the given option code.

  Returns:
    The string representation of the telnet protocol option.

### isValidOption

    public static final boolean isValidOption(int code)

  Determines if a given option code is valid. Returns true if valid, false if not.

  Parameters:
    `code` - The option code to test.
  Returns:
    True if the option code is valid, false if not.

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