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## java.lang
Class Exception

    java.lang.Object
      java.lang.Throwable
          java.lang.Exception

All Implemented Interfaces:
  Serializable

Direct Known Subclasses:
  AclNotFoundException, ActivationException, AlreadyBoundException, ApplicationException, AWTException, BackingStoreException, BadLocationException, CertificateException, ClassNotFoundException, CloneNotSupportedException, DataFormatException, DestroyFailedException, ExpandVetoException, FontFormatException, GeneralSecurityException, GSSException, IllegalAccessException, InstantiationException, InterruptedException, IntrospectionException, InvalidMidiDataException, InvalidPreferencesFormatException, InvocationTargetException, IOException, LastOwnerException, LineUnavailableException, MidiUnavailableException, MimeTypeParseException, NamingException, NoninvertibleTransformException, NoSuchFieldException, NoSuchMethodException, NotBoundException, NotOwnerException, ParseException, ParserConfigurationException, PrinterException, PrintException, PrivilegedActionException, PropertyVetoException, RefreshFailedException, RemarshalException, RuntimeException, SAXException, ServerNotActiveException, SQLException, TooManyListenersException, TransformerException, UnsupportedAudioFileException, UnsupportedCallbackException, UnsupportedFlavorException, UnsupportedLookAndFeelException, URISyntaxException, UserException, XAException

public class Exception
extends Throwable

The class `Exception` and its subclasses are a form of `Throwable` that indicates conditions that a reasonable application might want to catch.

Since:
  JDK1.0
See Also:
  `Error`, Serialized Form

Constructor Summary
`Exception()` Constructs a new exception with `null` as its detail message.
`Exception(String message)` Constructs a new exception with the specified detail message.
`Exception(String message, Throwable cause)` Constructs a new exception with the specified detail message and cause.
`Exception(Throwable cause)` Constructs a new exception with the specified cause and a detail message of `(cause==null ? null : cause.toString())` (which typically contains the class and detail message of `cause`).

Methods inherited from class java.lang.Throwable
`fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

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

Constructor Detail

### Exception

    public Exception()

  Constructs a new exception with `null` as its detail message. The cause is not initialized, and may subsequently be initialized by a call to `Throwable.initCause(java.lang.Throwable)`.

### Exception

    public Exception(String message)

  Constructs a new exception with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to `Throwable.initCause(java.lang.Throwable)`.

Parameters:
  `message` - the detail message. The detail message is saved for later retrieval by the `Throwable.getMessage()` method.

### Exception

    public Exception(String message,
                     Throwable cause)

  Constructs a new exception with the specified detail message and cause.

  Note that the detail message associated with `cause` is not automatically incorporated in this exception's detail message.

Parameters:
  `message` - the detail message (which is saved for later retrieval by the `Throwable.getMessage()` method).
  `cause` - the cause (which is saved for later retrieval by the `Throwable.getCause()` method). (A `null` value is permitted, and indicates that the cause is nonexistent or unknown.)
Since:
  1.4

### Exception

    public Exception(Throwable cause)

  Constructs a new exception with the specified cause and a detail message of `(cause==null ? null : cause.toString())` (which typically contains the class and detail message of `cause`). This constructor is useful for exceptions that are little more than wrappers for other throwables (for example, `PrivilegedActionException`).

Parameters:
  `cause` - the cause (which is saved for later retrieval by the `Throwable.getCause()` method). (A `null` value is permitted, and indicates that the cause is nonexistent or unknown.)
Since:
  1.4

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.