| Package | Description | 
|---|---|
| java.lang | Provides classes that are fundamental to the design of the Java
 programming language. | 
| java.lang.reflect | Provides classes and interfaces for obtaining reflective
 information about classes and objects. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | Class<T>Instances of the class  Classrepresent classes and
 interfaces in a running Java application. | 
| class  | PackagePackageobjects contain version information
 about the implementation and specification of a Java package. | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | AnnotatedArrayTypeAnnotatedArrayTyperepresents the potentially annotated use of an
 array type, whose component type may itself represent the annotated use of a
 type. | 
| interface  | AnnotatedParameterizedTypeAnnotatedParameterizedTyperepresents the potentially annotated use
 of a parameterized type, whose type arguments may themselves represent
 annotated uses of types. | 
| interface  | AnnotatedTypeAnnotatedTyperepresents the potentially annotated use of a type in
 the program currently running in this VM. | 
| interface  | AnnotatedTypeVariableAnnotatedTypeVariablerepresents the potentially annotated use of a
 type variable, whose declaration may have bounds which themselves represent
 annotated uses of types. | 
| interface  | AnnotatedWildcardTypeAnnotatedWildcardTyperepresents the potentially annotated use of a
 wildcard type argument, whose upper or lower bounds may themselves represent
 annotated uses of types. | 
| interface  | GenericDeclarationA common interface for all entities that declare type variables. | 
| interface  | TypeVariable<D extends GenericDeclaration>TypeVariable is the common superinterface for type variables of kinds. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AccessibleObjectThe AccessibleObject class is the base class for Field, Method and
 Constructor objects. | 
| class  | Constructor<T>Constructorprovides information about, and access to, a single
 constructor for a class. | 
| class  | ExecutableA shared superclass for the common functionality of  MethodandConstructor. | 
| class  | FieldA  Fieldprovides information about, and dynamic access to, a
 single field of a class or an interface. | 
| class  | MethodA  Methodprovides information about, and access to, a single method
 on a class or interface. | 
| class  | ParameterInformation about method parameters. | 
 Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
 Copyright © 1993, 2017, Oracle and/or its affiliates.  All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.