Class
Description
Thrown when an application tries to call an abstract method.
An object to which char sequences and values can be appended.
Thrown when an exceptional arithmetic condition has occurred.
Thrown to indicate that an array has been accessed with an illegal index.
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 an assertion has failed.
An object that may hold resources (such as file or socket handles)
until it is closed.
The Boolean class wraps a value of the primitive type
boolean in an object.
Thrown to indicate that an
invokedynamic instruction or a dynamic
constant failed to resolve its bootstrap method and arguments,
or for
invokedynamic instruction the bootstrap method has failed to
provide a
call site with a
target
of the correct
method type,
or for a dynamic constant the bootstrap method has failed to provide a
constant value of the required type.
The Byte class wraps a value of primitive type byte
in an object.
The Character class wraps a value of the primitive
type char in an object.
Instances of this class represent particular subsets of the Unicode
character set.
A family of character subsets representing the character blocks in the
Unicode specification.
A CharSequence is a readable sequence of char values.
Instances of the class Class represent classes and
interfaces in a running Java application.
Thrown to indicate that the code has attempted to cast an object
to a subclass of which it is not an instance.
Thrown when the Java Virtual Machine detects a circularity in the
superclass hierarchy of a class being loaded.
Thrown when the Java Virtual Machine attempts to read a class
file and determines that the file is malformed or otherwise cannot
be interpreted as a class file.
A class loader is an object that is responsible for loading classes.
Thrown when an application tries to load in a class through its
string name using:
The forName method in class Class.
Lazily associate a computed value with (potentially) every type.
A class implements the
Cloneable interface to
indicate to the
Object.clone() method that it
is legal for that method to make a
field-for-field copy of instances of that class.
Thrown to indicate that the clone method in class
Object has been called to clone an object, but that
the object's class does not implement the Cloneable
interface.
This interface imposes a total ordering on the objects of each class that
implements it.
A program element annotated @Deprecated is one that programmers
are discouraged from using.
The Double class wraps a value of the primitive type
double in an object.
This is the common base class of all Java language enumeration classes.
Thrown when an application tries to access an enum constant by name
and the enum type contains no constant with the specified name.
An Error is a subclass of Throwable
that indicates serious problems that a reasonable application
should not try to catch.
The class Exception and its subclasses are a form of
Throwable that indicates conditions that a reasonable
application might want to catch.
Signals that an unexpected exception has occurred in a static initializer.
The Float class wraps a value of primitive type
float in an object.
An informative annotation type used to indicate that an interface
type declaration is intended to be a functional interface as
defined by the Java Language Specification.
Thrown if an application attempts to access or modify a field, or
to call a method that it does not have access to.
An IllegalAccessException is thrown when an application tries
to reflectively create an instance (other than an array),
set or get a field, or invoke a method, but the currently
executing method does not have access to the definition of
the specified class, field, method or constructor.
Thrown to indicate that a method has been passed an illegal or
inappropriate argument.
Thrown to indicate that a method has been called by an inappropriate caller.
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
inappropriate time.
Thrown to indicate that a thread is not in an appropriate state
for the requested operation.
Thrown when an incompatible class change has occurred to some class
definition.
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.
This class extends ThreadLocal to provide inheritance of values
from parent thread to child thread: when a child thread is created, the
child receives initial values for all inheritable thread-local variables
for which the parent has values.
Thrown when an application tries to use the Java new
construct to instantiate an abstract class or an interface.
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 Integer class wraps a value of the primitive type
int in an object.
Thrown to indicate some unexpected internal error has occurred in
the Java Virtual Machine.
Thrown when a thread is waiting, sleeping, or otherwise occupied,
and the thread is interrupted, either before or during the activity.
Implementing this interface allows an object to be the target of the enhanced
for statement (sometimes called the "for-each loop" statement).
Subclasses of LinkageError indicate that a class has
some dependency on another class; however, the latter class has
incompatibly changed after the compilation of the former class.
The Long class wraps a value of the primitive type
long in an object.
Thrown to indicate an unexpected failure in pattern matching.
The class Math contains methods for performing basic
numeric operations such as the elementary exponential, logarithm,
square root, and trigonometric functions.
Represents a run-time module, either
named or unnamed.
A layer of modules in the Java virtual machine.
Thrown if an application tries to create an array with negative size.
Thrown if the Java Virtual Machine or a ClassLoader instance
tries to load in the definition of a class (as part of a normal method call
or as part of creating a new instance using the new expression)
and no definition of the class could be found.
Thrown if an application tries to access or modify a specified
field of an object, and that object no longer has that field.
Signals that the class doesn't have a field of a specified name.
Thrown if an application tries to call a specified method of a
class (either static or instance), and that class no longer has a
definition of that method.
Thrown when a particular method cannot be found.
Thrown when an application attempts to use null in a
case where an object is required.
The abstract class Number is the superclass of platform
classes representing numeric values that are convertible to the
primitive types byte, double, float,
int, long, and short.
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.
Class Object is the root of the class hierarchy.
Thrown when the Java Virtual Machine cannot allocate an object
because it is out of memory, and no more memory could be made
available by the garbage collector.
Indicates that a method declaration is intended to override a
method declaration in a supertype.
Represents metadata about a run-time package associated with a class loader.
Process provides control of native processes started by
ProcessBuilder.start and Runtime.exec.
This class is used to create operating system processes.
Represents a source of subprocess input or a destination of
subprocess output.
ProcessHandle identifies and provides control of native processes.
Information snapshot about the process.
A Readable is a source of characters.
This is the common base class of all Java language record classes.
Common superclass of exceptions thrown by reflective operations in
core reflection.
Represents an operation that does not return a result.
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.
A representation of a version string for an implementation of the
Java SE Platform.
RuntimeException is the superclass of those
exceptions that can be thrown during the normal operation of the
Java Virtual Machine.
This class is for runtime permissions.
A programmer assertion that the body of the annotated method or
constructor does not perform potentially unsafe operations on its
varargs parameter.
Preview.
A value that may be safely and efficiently shared to methods without using method
parameters.
Preview.
A mapping of scoped values, as keys, to values.
Thrown by the security manager to indicate a security violation.
Deprecated, for removal: This API element is subject to removal in a future version.
The Security Manager is deprecated and subject to removal in a
future release.
The Short class wraps a value of primitive type
short in an object.
Thrown when a stack overflow occurs because an application
recurses too deeply.
Stack walker option to configure the
stack frame
information obtained by a
StackWalker.
A
StackFrame object represents a method invocation returned by
StackWalker.
The class StrictMath contains methods for performing basic
numeric operations such as the elementary exponential, logarithm,
square root, and trigonometric functions.
The String class represents character strings.
A thread-safe, mutable sequence of characters.
A mutable sequence of characters.
Thrown by String methods to indicate that an index is either negative
or greater than the size of the string.
Preview.
StringTemplatePREVIEW is the run-time representation of a string template or
text block template in a template expression.
Preview.
This interface describes the methods provided by a generalized string template processor.
Preview.
Built-in policies using this additional interface have the flexibility to
specialize the composition of the templated string by returning a customized
MethodHandle from
linkagePREVIEW.
Indicates the warnings to be suppressed at compile time in the
annotated element, and in all elements contained in the annotated
element.
The System class contains several useful class fields
and methods.
System.Logger instances log messages that will be
routed to the underlying logging framework the
LoggerFinder uses.
The LoggerFinder service is responsible for creating, managing,
and configuring loggers to the underlying framework it uses.
A thread is a thread of execution in a program.
Interface for handlers invoked when a Thread abruptly
terminates due to an uncaught exception.
Deprecated, for removal: This API element is subject to removal in a future version.
Thread.stop() was originally specified to "stop" a victim
thread by causing the victim thread to throw a
ThreadDeath.
A thread group represents a set of threads.
This class provides thread-local variables.
The Throwable class is the superclass of all errors and
exceptions in the Java language.
Thrown when an application tries to access a type using a string
representing the type's name, but no definition for the type with
the specified name can be found.
Thrown when an unknown but serious exception has occurred in the
Java Virtual Machine.
Thrown if the Java Virtual Machine cannot find an appropriate
native-language definition of a method declared native.
Thrown when the Java Virtual Machine attempts to read a class
file and determines that the major and minor version numbers
in the file are not supported.
Thrown to indicate that the requested operation is not supported.
Thrown when the "verifier" detects that a class file,
though well formed, contains some sort of internal inconsistency
or security problem.
Thrown to indicate that the Java Virtual Machine is broken or has
run out of resources necessary for it to continue operating.
The Void class is an uninstantiable placeholder class to hold a
reference to the Class object representing the Java keyword
void.
Thrown to indicate that a method has been called on the wrong thread.