Exceptions 是否对所有异常都有效？

Question

也许这是个愚蠢的问题，Exception 接受所有吗？例如 IOException、NoSuchAlgorithmException、InvalidKeySpecException...所以当我调用此方法时：

public String exception(Exception e){
    StringWriter errors = new StringWriter();
    e.printStackTrace(new PrintWriter(errors));
    return errors.toString();
}

它将接受所有异常并return它们具有原始异常名称？

谢谢大家，很抱歉我刚开始问这个愚蠢的问题java，我想确定这一点。

Answer 1

所有异常和错误的超级 class 是 Throwable。所以，我不知道你将如何使用你的方法，但是对于线程中的错误和异常处理，例如，你应该使用这个：

try { ... } catch (Throwable t) { ... }

UPD。顺便说一句，没有人限制从 Throwable 创建自己的异常并抛出它而不是 Exception 后代：

throw new Throwable() { ... };

所以，你的方法不会处理这样的异常...

Answer 2

是的，您的代码可以处理所有 e instanceof Exception。

Exception是所有异常的基础class，在[=13]中有一个直接子class的列表=]:

AclNotFoundException, ActivationException, AlreadyBoundException, ApplicationException, AWTException, BackingStoreException, BadAttributeValueExpException, BadBinaryOpValueExpException, BadLocationException, BadStringOperationException, BrokenBarrierException, CertificateException, CloneNotSupportedException, DataFormatException, DatatypeConfigurationException, DestroyFailedException, ExecutionException, ExpandVetoException, FontFormatException, GeneralSecurityException, GSSException, IllegalClassFormatException, InterruptedException, IntrospectionException, InvalidApplicationException, InvalidMidiDataException, InvalidPreferencesFormatException, InvalidTargetObjectTypeException, IOException, JAXBException, JMException, KeySelectorException, LastOwnerException, LineUnavailableException, MarshalException, MidiUnavailableException, MimeTypeParseException, MimeTypeParseException, NamingException, NoninvertibleTransformException, NotBoundException, NotOwnerException, ParseException, ParserConfigurationException, PrinterException, PrintException, PrivilegedActionException, PropertyVetoException, ReflectiveOperationException, RefreshFailedException, RemarshalException, RuntimeException, SAXException, ScriptException, ServerNotActiveException, SOAPException, SQLException, TimeoutException, TooManyListenersException, TransformerException, TransformException, UnmodifiableClassException, UnsupportedAudioFileException, UnsupportedCallbackException, UnsupportedFlavorException, UnsupportedLookAndFeelException, URIReferenceException, URISyntaxException, UserException, XAException, XMLParseException, XMLSignatureException, XMLStreamException, XPathException

Exceptions 是否对所有异常都有效？

Exceptions is valid for all exceptions?

java

exception