11.5.1

The Classes

Exception

 and

RuntimeException

EXCEPTIONS

11.5.1.2

Standard Checked Exceptions

The standard subclasses of

Exception

 other than

RuntimeException

 are all

checked exception classes.

Package

java.lang

 defines the following standard exceptions, which, like all

other classes in package

java.lang

, are implicitly imported and therefore may be

referred to by their simple names:

ClassNotFoundException

: A class or interface with a specified name could

not be found ( 20.3.8).

CloneNotSupportedException

: The

clone

 method ( 20.1.5) of class

Object

has been invoked to clone an object, but the class of that object does

not implement the

Cloneable

 interface.

IllegalAccessException

: An attempt has been made to load a class using

a string giving its fully qualified name, but the currently executing method

does not have access to the definition of the specified class because the class is

not

public

 and is in another package.

InstantiationException

: An attempt was made to create an instance of a

class using the

newInstance

 method in class

Class

, but the specified class

object cannot be instantiated because it is an interface, is

abstract

, or is an

array.

InterruptedException

: The current thread was waiting, and another thread

has interrupted the current thread, using the

interrupt

 method of class

Thread

 ( 20.20.31).

Package

java.io

 defines the following additional standard exceptions:

java.io.IOException

: A requested I/O operation could not be completed

normally. Subclasses of this class include:

N

java.io.EOFException

: End of file has been encountered before normal

completion of an input operation.

N

java.io.FileNotFoundException

: A file with the name specified by a

file name string or path was not found within the file system.

N

java.io.InterruptedIOException

: The current thread was waiting for

completion of an I/O operation, and another thread has interrupted the cur 

rent thread, using the

interrupt

 method of class

Thread

 ( 20.20.31).

N

java.io.UTFDataFormatException

: A requested conversion of a string

to or from Java modified UTF 8 format could not be completed ( 22.1.15,

210