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Java Fundamental Classes Reference

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The java.lang Package
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RuntimeException

Name

RuntimeException

Synopsis

Class Name:

java.lang.RuntimeException

Superclass:

java.lang.Exception

Immediate Subclasses:

java.lang.ArithmeticException,

java.lang.ArrayStoreException,

java.lang.ClassCastException,

java.lang.IllegalArgumentException,

java.lang.IllegalMonitorStateException,

java.lang.IllegalStateException,

java.lang.IndexOutOfBoundsException,

java.lang.NegativeArraySizeException,

java.lang.NullPointerException,

java.lang.SecurityException,

java.util.EmptyStackException,

java.util.MissingResourceException,

java.util.NoSuchElementException

Interfaces Implemented:

None

Availability:

JDK 1.0 or later

Description

The RuntimeException class is the superclass of the standard run-time exceptions that can be thrown in Java. The appropriate subclass of RuntimeException is thrown in response to a run-time error detected at the virtual machine level. A run-time exception represents a run-time condition that can occur generally in any Java method, so a method is not required to declare that it throws any of the run-time exceptions.

A Java program should try to handle all of the standard run-time exception classes, since they represent routine abnormal conditions that should be anticipated and caught to prevent program termination.

Class Summary

public class java.lang.RuntimeException extends java.lang.Exception {
  // Constructors
  public RuntimeException();
  public RuntimeException(String s);
}

Constructors

RuntimeException

public RuntimeException()

Description

This constructor creates a RuntimeException with no associated detail message.

public RuntimeException(String s)

Parameters

s

The detail message.

Description

This constructor creates a RuntimeException with the specified detail message.

Inherited Methods

Method

Inherited From

Method

Inherited From

clone()

Object

equals(Object)

Object

fillInStackTrace()

Throwable

finalize()

Object

getClass()

Object

getLocalizedMessage()

Throwable

getMessage()

Throwable

hashCode()

Object

notify()

Object

notifyAll()

Object

printStackTrace()

Throwable

printStackTrace(PrintStream)

Throwable

printStackTrace(PrintWriter)

Throwable

toString()

Object

wait()

Object

wait(long)

Object

wait(long, int)

Object

   

See Also

ArithmeticException, ArrayStoreException, ClassCastException, EmptyStackException, IllegalArgumentException, IllegalMonitorStateException, IllegalStateException, IndexOutOfBoundsException, MissingResourceException, NegativeArraySizeException, NoSuchElementException, NullPointerException, SecurityException, Throwable


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