RuntimeException (Java Platform SE 8 ) (original) (raw)

• 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, ClassCastException, CMMException, CompletionException, ConcurrentModificationException, DataBindingException, DateTimeException, DOMException, EmptyStackException, EnumConstantNotPresentException, EventException, FileSystemAlreadyExistsException, FileSystemNotFoundException, IllegalArgumentException, IllegalMonitorStateException, IllegalPathStateException, IllegalStateException, IllformedLocaleException, ImagingOpException, IncompleteAnnotationException, IndexOutOfBoundsException, JMRuntimeException, LSException, MalformedParameterizedTypeException, MalformedParametersException, MirroredTypesException, MissingResourceException, NegativeArraySizeException, NoSuchElementException, NoSuchMechanismException, NullPointerException, ProfileDataException, ProviderException, ProviderNotFoundException, RasterFormatException, RejectedExecutionException, SecurityException, SystemException, TypeConstraintException, TypeNotPresentException, UncheckedIOException, UndeclaredThrowableException, UnknownEntityException, UnmodifiableSetException, UnsupportedOperationException, WebServiceException, WrongMethodTypeException

public class RuntimeException
extends Exception
RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.
RuntimeException and its subclasses are unchecked exceptions. Unchecked exceptions do not need to be declared in a method or constructor's throws clause if they can be thrown by the execution of the method or constructor and propagate outside the method or constructor boundary.
Since:
JDK1.0
See Also:
Serialized Form
See The Java™ Language Specification:
11.2 Compile-Time Checking of Exceptions

• • Constructor Summary

  Constructors

  Modifier	Constructor	Description
  	RuntimeException()	Constructs a new runtime exception with null as its detail message.
  	RuntimeException(String message)	Constructs a new runtime exception with the specified detail message.
  	RuntimeException(String message,Throwable cause)	Constructs a new runtime exception with the specified detail message and cause.
  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.
  	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).

  • Method Summary

    * ### Methods inherited from class java.lang.[Throwable](../../java/lang/Throwable.html "class in java.lang")  
    `[addSuppressed](../../java/lang/Throwable.html#addSuppressed-java.lang.Throwable-), [fillInStackTrace](../../java/lang/Throwable.html#fillInStackTrace--), [getCause](../../java/lang/Throwable.html#getCause--), [getLocalizedMessage](../../java/lang/Throwable.html#getLocalizedMessage--), [getMessage](../../java/lang/Throwable.html#getMessage--), [getStackTrace](../../java/lang/Throwable.html#getStackTrace--), [getSuppressed](../../java/lang/Throwable.html#getSuppressed--), [initCause](../../java/lang/Throwable.html#initCause-java.lang.Throwable-), [printStackTrace](../../java/lang/Throwable.html#printStackTrace--), [printStackTrace](../../java/lang/Throwable.html#printStackTrace-java.io.PrintStream-), [printStackTrace](../../java/lang/Throwable.html#printStackTrace-java.io.PrintWriter-), [setStackTrace](../../java/lang/Throwable.html#setStackTrace-java.lang.StackTraceElement:A-), [toString](../../java/lang/Throwable.html#toString--)`  
    * ### Methods inherited from class java.lang.[Object](../../java/lang/Object.html "class in java.lang")  
    `[clone](../../java/lang/Object.html#clone--), [equals](../../java/lang/Object.html#equals-java.lang.Object-), [finalize](../../java/lang/Object.html#finalize--), [getClass](../../java/lang/Object.html#getClass--), [hashCode](../../java/lang/Object.html#hashCode--), [notify](../../java/lang/Object.html#notify--), [notifyAll](../../java/lang/Object.html#notifyAll--), [wait](../../java/lang/Object.html#wait--), [wait](../../java/lang/Object.html#wait-long-), [wait](../../java/lang/Object.html#wait-long-int-)`

• • Constructor Detail

     * #### RuntimeException  
     public RuntimeException()  
     Constructs a new runtime 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)](../../java/lang/Throwable.html#initCause-java.lang.Throwable-).  
     * #### RuntimeException  
     public RuntimeException([String](../../java/lang/String.html "class in java.lang") message)  
     Constructs a new runtime 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)](../../java/lang/Throwable.html#initCause-java.lang.Throwable-).  
     Parameters:  
     `message` \- the detail message. The detail message is saved for later retrieval by the [Throwable.getMessage()](../../java/lang/Throwable.html#getMessage--) method.  
     * #### RuntimeException  
     public RuntimeException([String](../../java/lang/String.html "class in java.lang") message,  
                             [Throwable](../../java/lang/Throwable.html "class in java.lang") cause)  
     Constructs a new runtime exception with the specified detail message and cause.  
     Note that the detail message associated with`cause` is _not_ automatically incorporated in this runtime exception's detail message.  
     Parameters:  
     `message` \- the detail message (which is saved for later retrieval by the [Throwable.getMessage()](../../java/lang/Throwable.html#getMessage--) method).  
     `cause` \- the cause (which is saved for later retrieval by the[Throwable.getCause()](../../java/lang/Throwable.html#getCause--) method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)  
     Since:  
     1.4  
     * #### RuntimeException  
     public RuntimeException([Throwable](../../java/lang/Throwable.html "class in java.lang") 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 of  
     cause  
     ). 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 the[Throwable.getCause()](../../java/lang/Throwable.html#getCause--) method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)  
     Since:  
     1.4  
     * #### RuntimeException  
     protected RuntimeException([String](../../java/lang/String.html "class in java.lang") message,  
                                [Throwable](../../java/lang/Throwable.html "class in java.lang") 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. (A `null` 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

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