Class RuntimeException
java.lang
java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
All Implemented Interfaces:
java.io.Serializable
Direct Known Subclasses:
AnnotationTypeMismatchException, ArithmeticException, ArrayStoreException, ClassCastException, ConcurrentModificationException, EmptyStackException, EnumConstantNotPresentException, IllegalArgumentException, IllegalMonitorStateException, IllegalStateException, IncompleteAnnotationException, IndexOutOfBoundsException, MalformedParameterizedTypeException, MissingResourceException, NegativeArraySizeException, NoSuchElementException, NullPointerException, SecurityException, TypeNotPresentException, UndeclaredThrowableException, UnsupportedOperationException
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.

A method is not required to declare in its throws clause any subclasses of RuntimeException that might be thrown during the execution of the method but not caught.

Since:
JDK1.0
Version:
1.14, 11/17/05
Author:
Frank Yellin
Constructor Summary
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.
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 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
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().
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 to Throwable.initCause().
Parameters:
message - the detail message. The detail message is saved for later retrieval by the Throwable.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 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() 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
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 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() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
Since:
1.4
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