Module jdk.security.auth
Package com.sun.security.auth.callback

## Class TextCallbackHandler

- java.lang.Object
- - com.sun.security.auth.callback.TextCallbackHandler

- All Implemented Interfaces:
    `CallbackHandler`

      public class TextCallbackHandler
      extends Object
      implements CallbackHandler

  Prompts and reads from the command line for answers to authentication questions. This can be used by a JAAS application to instantiate a CallbackHandler

  See Also:
    `javax.security.auth.callback`

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `TextCallbackHandler()` | Creates a callback handler that prompts and reads from the command line for answers to authentication questions.

  - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `handle​(Callback[] callbacks)` | Handles the specified set of callbacks.

    - ### Methods declared in class java.lang.Object

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

- - ### Constructor Detail

    - #### TextCallbackHandler

          public TextCallbackHandler()

      Creates a callback handler that prompts and reads from the command line for answers to authentication questions. This can be used by JAAS applications to instantiate a CallbackHandler.

  - ### Method Detail

    - #### handle

          public void handle​(Callback[] callbacks)
                      throws IOException,
                             UnsupportedCallbackException

      Handles the specified set of callbacks.
      Specified by:
        `handle` in interface `CallbackHandler`
      Parameters:
        `callbacks` - the callbacks to handle
      Throws:
        `IOException` - if an input or output error occurs.
        `UnsupportedCallbackException` - if the callback is not an instance of NameCallback or PasswordCallback