org.apache.commons.net.telnet

## Class TelnetCommand

- java.lang.Object
- - org.apache.commons.net.telnet.TelnetCommand

-     public final class TelnetCommand
      extends Object

  The TelnetCommand class cannot be instantiated and only serves as a storehouse for telnet command constants.
  See Also:
    `Telnet`, `TelnetClient`

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `ABORT` Abort code.
    `static int` | `AO` Abort Output code.
    `static int` | `AYT` Are You There code.
    `static int` | `BREAK` Break code.
    `static int` | `DM` Data mark code.
    `static int` | `DO` Request to use option code.
    `static int` | `DONT` Don't use option code.
    `static int` | `EC` Erase Character code.
    `static int` | `EL` Erase Line code.
    `static int` | `EOF` End of file code.
    `static int` | `EOR` End of record code.
    `static int` | `GA` Go Ahead code.
    `static int` | `IAC` Interpret As Command code.
    `static int` | `IP` Interrupt Process code.
    `static int` | `MAX_COMMAND_VALUE` The maximum value a command code can have.
    `static int` | `NOP` No Operation code.
    `static int` | `SB` Start subnegotiation code.
    `static int` | `SE` End subnegotiation code.
    `static int` | `SUSP` Suspend process code.
    `static int` | `SYNCH` Synchronize code.
    `static int` | `WILL` Agree to use option code.
    `static int` | `WONT` Refuse to use option code.

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static String` | `getCommand(int code)` Returns the string representation of the telnet protocol command corresponding to the given command code.
    `static boolean` | `isValidCommand(int code)` Determines if a given command code is valid.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### MAX_COMMAND_VALUE

          public static final int MAX_COMMAND_VALUE

      The maximum value a command code can have. This value is 255.
      See Also:
        Constant Field Values

    - #### IAC

          public static final int IAC

      Interpret As Command code. Value is 255 according to RFC 854.
      See Also:
        Constant Field Values

    - #### DONT

          public static final int DONT

      Don't use option code. Value is 254 according to RFC 854.
      See Also:
        Constant Field Values

    - #### DO

          public static final int DO

      Request to use option code. Value is 253 according to RFC 854.
      See Also:
        Constant Field Values

    - #### WONT

          public static final int WONT

      Refuse to use option code. Value is 252 according to RFC 854.
      See Also:
        Constant Field Values

    - #### WILL

          public static final int WILL

      Agree to use option code. Value is 251 according to RFC 854.
      See Also:
        Constant Field Values

    - #### SB

          public static final int SB

      Start subnegotiation code. Value is 250 according to RFC 854.
      See Also:
        Constant Field Values

    - #### GA

          public static final int GA

      Go Ahead code. Value is 249 according to RFC 854.
      See Also:
        Constant Field Values

    - #### EL

          public static final int EL

      Erase Line code. Value is 248 according to RFC 854.
      See Also:
        Constant Field Values

    - #### EC

          public static final int EC

      Erase Character code. Value is 247 according to RFC 854.
      See Also:
        Constant Field Values

    - #### AYT

          public static final int AYT

      Are You There code. Value is 246 according to RFC 854.
      See Also:
        Constant Field Values

    - #### AO

          public static final int AO

      Abort Output code. Value is 245 according to RFC 854.
      See Also:
        Constant Field Values

    - #### IP

          public static final int IP

      Interrupt Process code. Value is 244 according to RFC 854.
      See Also:
        Constant Field Values

    - #### BREAK

          public static final int BREAK

      Break code. Value is 243 according to RFC 854.
      See Also:
        Constant Field Values

    - #### DM

          public static final int DM

      Data mark code. Value is 242 according to RFC 854.
      See Also:
        Constant Field Values

    - #### NOP

          public static final int NOP

      No Operation code. Value is 241 according to RFC 854.
      See Also:
        Constant Field Values

    - #### SE

          public static final int SE

      End subnegotiation code. Value is 240 according to RFC 854.
      See Also:
        Constant Field Values

    - #### EOR

          public static final int EOR

      End of record code. Value is 239.
      See Also:
        Constant Field Values

    - #### ABORT

          public static final int ABORT

      Abort code. Value is 238.
      See Also:
        Constant Field Values

    - #### SUSP

          public static final int SUSP

      Suspend process code. Value is 237.
      See Also:
        Constant Field Values

    - #### EOF

          public static final int EOF

      End of file code. Value is 236.
      See Also:
        Constant Field Values

    - #### SYNCH

          public static final int SYNCH

      Synchronize code. Value is 242.
      See Also:
        Constant Field Values

  - ### Method Detail

    - #### getCommand

          public static String getCommand(int code)

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

      Parameters:
        `code` - The command code of the telnet protocol command.
      Returns:
        The string representation of the telnet protocol command.

    - #### isValidCommand

          public static boolean isValidCommand(int code)

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

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

Copyright © 2001–2020 The Apache Software Foundation. All rights reserved.