Java Programing laungage

This package provides Java API (classes and Interface) for examine Java Code and obtaining reflective information about Java Component ( classes and objects) at runtime and to use the reflected members. Classes form this package is used for debuggers, interpreters, object inspectors, class browsers, and services such as object serialization and JavaBeans into the Java applications.

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Java.lang.reflect Package

Interface	Description
AnnotatedElement	Represents an annotated element of the program currently running in this VM. This interface allows annotations to be read reflectively. All annotations returned by methods in this interface are immutable and serializable.
GenericArrayType	GenericArrayType represents an array type whose component type is either a parameterized type or a type variable. GenericDeclaration A common interface for all entities that declare type variables.
InvocationHandler	InvocationHandler is the interface implemented by the invocation handler of a proxy instance.
Member	Member is an interface that reflects identifying information about a single member (a field or a method) or a constructor.
ParameterizedType	A parameterized type is created the first time it is needed by a reflective method, as specified in this package.
Type	Type is the common superinterface for all types in the Java programming language. These include raw types, parameterized types, array types, type variables and primitive types.
TypeVariable<D extends GenericDeclaration>	TypeVariable is the common superinterface for type variables of kinds. A type variable is created the first time it is needed by a reflective method, as specified in this package.
WildcardType	WildcardType represents a wildcard type expression, such as ?, ? extends Number, or ? super Integer.
Class	Description
AccessibleObject	The AccessibleObject class is the base class for Field, Method and Constructor objects. It provides the ability to flag a reflected object as suppressing default Java language access control checks when it is used.
Array	The Array class provides static methods to dynamically create and access Java arrays.
Constructor<T>	Constructor provides information about, and access to, a single constructor for a class.
Field	A Field provides information about, and dynamic access to, a single field of a class or an interface. The reflected field may be a class (static) field or an instance field.
Method	A Method provides information about, and access to, a single method on a class or interface. The reflected method may be a class method or an instance method (including an abstract method).
Modifier	The Modifier class provides static methods and constants to decode class and member access modifiers. The sets of modifiers are represented as integers with distinct bit positions representing different modifiers.
Proxy	Proxy provides static methods for creating dynamic proxy classes and instances, and it is also the superclass of all dynamic proxy classes.
ReflectPermission	The Permission class for reflective operations. A ReflectPermission is a named permission and has no actions.
Exception	Description
InvocationTargetException	InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
MalformedParameterizedTypeException	Thrown when a semantically malformed parameterized type is encountered by a reflective method that needs to instantiate it.
UndeclaredThrowableException	Thrown by a method invocation on a proxy instance if its invocation handler's invoke method throws a checked exception (a Throwable that is not assignable to RuntimeException or Error) that is not assignable to any of the exception types declared in the throws clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.
Error	Description
GenericSignatureFormatError	Thrown when a syntactically malformed signature attribute is encountered by a reflective method that needs to interpret the generic signature information for a type, method or constructor.