||The Boolean class wraps a value of the primitive type
boolean in an object.
||The Byte class is the standard wrapper for byte values.
||The Character class wraps a value of the primitive type
in an object.
||Instances of the class
Class represent classes and interfaces
in a running Java application.
||The Double class wraps a value of the primitive type
double in an object.
||The Float class provides an object wrapper for Float data values, and serves as
a place for float-oriented operations.
||The Integer class wraps a value of the primitive type
in an object.
||The Long class wraps a value of the primitive type
in an object.
Math contains methods for performing basic
Object is the root of the class hierarchy.
||Every Java application has a single instance of class
Runtime that allows the application to interface with
the environment in which the application is running.
||The Short class is the standard wrapper for short values.
String class represents character strings.
||A string buffer implements a mutable sequence of characters.
System class contains several useful class fields
||A thread is a thread of execution in a program.
Throwable class is the superclass of all errors
and exceptions in the Java language.
||Thrown when an exceptional arithmetic condition has occurred.
||Thrown to indicate that an array has been accessed with an
||Thrown to indicate that an attempt has been made to store the
wrong type of object into an array of objects.
||Thrown to indicate that the code has attempted to cast an object
to a subclass of which it is not an instance.
||Thrown when an application tries to load in a class through its
string name using the
forName method in class
but no definition for the class with the specified name could be found.
Exception and its subclasses are a form of
Throwable that indicates conditions that a reasonable
application might want to catch.
||Thrown when an application tries to load in a class,
but the currently executing method does not have access to the
definition of the specified class, because the class is not public
and in another package.
||Thrown to indicate that a method has been passed an illegal or
||Thrown to indicate that a thread has attempted to wait on an
object's monitor or to notify other threads waiting on an object's
monitor without owning the specified monitor.
||Signals that a method has been invoked at an illegal or
||Thrown to indicate that a thread is not in an appropriate state
for the requested operation.
||Thrown to indicate that an index of some sort (such as to an array,
to a string, or to a vector) is out of range.
||Thrown when an application tries to create an instance of a class
newInstance method in class
Class, but the specified class object cannot be
instantiated because it is an interface or is an abstract class.
||Thrown when a thread is waiting, sleeping, or otherwise paused for
a long time and another thread interrupts it.
||Thrown if an application tries to create an array with negative size.
||Thrown when an application attempts to use
null in a
case where an object is required.
||Thrown to indicate that the application has attempted to convert
a string to one of the numeric types, but that the string does not
have the appropriate format.
RuntimeException is the superclass of those
exceptions that can be thrown during the normal operation of the
Java Virtual Machine.
||Thrown by the system to indicate a security violation.
||Thrown by the
charAt method in class
String and by other
methods to indicate that an index is either negative or greater
than or equal to the size of the string.