InstantiationException
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Thrown when an application tries to create an instance of a class
using the newInstance
method in class
Class
, but the specified class object cannot be
instantiated. The instantiation can fail for a variety of
reasons including but not limited to:
- the class object represents an abstract class, an interface,
an array class, a primitive type, or
void
- the class has no nullary constructor
Public Constructor Summary
Inherited Method Summary
From class
java.lang.Throwable
synchronized
final
void
|
addSuppressed( Throwable exception)
Appends the specified exception to the exceptions that were
suppressed in order to deliver this exception.
|
synchronized
Throwable
|
|
synchronized
Throwable
|
getCause()
Returns the cause of this throwable or null if the
cause is nonexistent or unknown.
|
String
|
|
String
|
getMessage()
Returns the detail message string of this throwable.
|
StackTraceElement[]
|
|
synchronized
final
Throwable[]
|
getSuppressed()
Returns an array containing all of the exceptions that were
suppressed, typically by the try -with-resources
statement, in order to deliver this exception.
|
synchronized
Throwable
|
initCause( Throwable cause)
Initializes the cause of this throwable to the specified value.
|
void
|
printStackTrace()
Prints this throwable and its backtrace to the
standard error stream.
|
void
|
|
void
|
|
void
|
|
String
|
toString()
Returns a short description of this throwable.
|
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this Object .
|
boolean
|
equals( Object obj)
Compares this instance with the specified object and indicates if they
are equal.
|
void
|
finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
|
final
Class<?>
|
getClass()
Returns the unique instance of Class that represents this
object's class.
|
int
|
hashCode()
Returns an integer hash code for this object.
|
final
void
|
notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
|
final
void
|
notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
|
String
|
toString()
Returns a string containing a concise, human-readable description of this
object.
|
final
void
|
wait(long timeout, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
|
final
void
|
wait(long timeout)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
|
final
void
|
wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
|
Public Constructors
public
InstantiationException
()
Constructs an InstantiationException
with no detail message.
public
InstantiationException
(String s)
Constructs an InstantiationException
with the
specified detail message.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-07-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-07-10 UTC."],[[["`InstantiationException` is thrown when the `newInstance` method in `Class` fails to create an instance of the specified class."],["Instantiation can fail if the class is abstract, an interface, an array, a primitive type, `void`, or lacks a nullary constructor."],["This exception provides constructors to create instances with or without a detailed message explaining the failure."]]],["`InstantiationException` is thrown when `newInstance` fails to create a class instance. This can occur if the class is abstract, an interface, array, primitive type, void, or lacks a nullary constructor. The exception has two constructors: one with no message and another with a specified detail message. The class inherits methods from `Throwable` for handling exceptions, like getting/setting messages, stack traces, causes, and suppressed exceptions. It also inherits from `Object` for more basic object methods.\n"]]