Class RuntimeException

java.lang.Object
java.lang.Throwable
java.lang.Exception
java.lang.RuntimeException
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
AnnotationTypeMismatchException,ArithmeticException,ArrayStoreException,BufferOverflowException,BufferUnderflowException,CannotRedoException,CannotUndoException,CatalogException,ClassCastException,ClassNotPreparedException,CMMException,CompletionException,ConcurrentModificationException,DateTimeException,DOMException,DuplicateRequestException,EmptyStackException,EnumConstantNotPresentException,EventException,FileSystemAlreadyExistsException,FileSystemNotFoundException,FindException,IllegalArgumentException,IllegalCallerException,IllegalMonitorStateException,IllegalPathStateException,IllegalStateException,IllformedLocaleException,ImagingOpException,InaccessibleObjectException,IncompleteAnnotationException,InconsistentDebugInfoException,IndexOutOfBoundsException,InternalException,InvalidCodeIndexException,InvalidLineNumberException,InvalidModuleDescriptorException,InvalidModuleException,InvalidRequestStateException,InvalidStackFrameException,JarSignerException,JMRuntimeException,JSException,LayerInstantiationException,LSException,MalformedParameterizedTypeException,MalformedParametersException,MatchException,MirroredTypesException,MissingResourceException,NegativeArraySizeException,NoSuchDynamicMethodException,NoSuchElementException,NoSuchMechanismException,NullPointerException,ObjectCollectedException,OpaqueFrameException,ProfileDataException,ProviderException,ProviderNotFoundException,RangeException,RasterFormatException,RejectedExecutionException,ResolutionException,SecurityException,SPIResolutionException,StructureViolationExceptionPREVIEW,TypeNotPresentException,UncheckedIOException,UndeclaredThrowableException,UnknownEntityException,UnmodifiableModuleException,UnmodifiableSetException,UnsupportedOperationException,VMDisconnectedException,VMMismatchException,VMOutOfMemoryException,WrongMethodTypeException,WrongThreadException,XPathException
public classRuntimeExceptionextendsException
RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.

RuntimeException and its subclasses areunchecked exceptions. Unchecked exceptions donot need to be declared in a method or constructor'sthrows clause if they can be thrown by the execution of the method or constructor and propagate outside the method or constructor boundary.

SeeJava Language Specification:
11.2 Compile-Time Checking of Exceptions
Since:
1.0
See Also:

  • Constructor Details

    • RuntimeException

      public RuntimeException()
      Constructs a new runtime exception withnull as its detail message. The cause is not initialized, and may subsequently be initialized by a call toThrowable.initCause(java.lang.Throwable).

    • RuntimeException

      public RuntimeException(String message)
      Constructs a new runtime exception with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call toThrowable.initCause(java.lang.Throwable).
      Parameters:
      message - the detail message. The detail message is saved for later retrieval by theThrowable.getMessage() method.

    • RuntimeException

      public RuntimeException(String message,Throwable cause)
      Constructs a new runtime exception with the specified detail message and cause.

      Note that the detail message associated withcause isnot automatically incorporated in this runtime exception's detail message.

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

    • RuntimeException

      public RuntimeException(Throwable cause)
      Constructs a new runtime exception with the specified cause and a detail message of(cause==null ? null : cause.toString()) (which typically contains the class and detail message ofcause). This constructor is useful for runtime exceptions that are little more than wrappers for other throwables.
      Parameters:
      cause - the cause (which is saved for later retrieval by theThrowable.getCause() method). (Anull value is permitted, and indicates that the cause is nonexistent or unknown.)
      Since:
      1.4

    • RuntimeException

      protected RuntimeException(String message,Throwable cause, boolean enableSuppression, boolean writableStackTrace)
      Constructs a new runtime exception with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.
      Parameters:
      message - the detail message.
      cause - the cause. (Anull value is permitted, and indicates that the cause is nonexistent or unknown.)
      enableSuppression - whether or not suppression is enabled or disabled
      writableStackTrace - whether or not the stack trace should be writable
      Since:
      1.7