Contains all of the classes for creating user interfaces and for painting graphics and images.

Provides for system input and output through data streams, serialization and the file system.

Provides classes that are fundamental to the design of the Java programming language.

Provides classes and interfaces for supporting the server side of RMI.

Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java programming language.

Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.

Service provider classes for the classes in the java.util package.

Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.

Provides classes and interfaces that deal with editable and noneditable text components.

Common classes for XML cryptography.

Classes for generating and validating XML digital signatures.

Defines the generic APIs for processing transformation instructions, and performing a transformation from source to result.

Provides anobject-model neutral API for the evaluation of XPath expressions and access to the evaluation environment.

Provides interfaces for creating tools, such as a Read-Eval-Print Loop (REPL), which interactively evaluate "snippets" of Java programming language code.

Defines the Service Provider Interface for pluggable JShell execution engines.

Provides a mechanism to launch an instance of a Java shell tool.