Uses of Interface
java.lang.CharSequence

Packages that use CharSequence 
Package Description
com.sun.source.util
Provides utilities for operations on abstract syntax trees (AST).
java.io
Provides for system input and output through data streams, serialization and the file system.
java.lang
Provides classes that are fundamental to the design of the Java programming language.
java.net.http
HTTP Client and WebSocket APIs
java.nio
Defines buffers, which are containers for data, and provides an overview of the other NIO packages.
java.nio.charset
Defines charsets, decoders, and encoders, for translating between bytes and Unicode characters.
java.nio.file
Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
java.text
Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.
java.time
The main API for dates, times, instants, and durations.
java.time.format
Provides classes to print and parse dates and times.
java.util
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.
java.util.regex
Classes for matching character sequences against patterns specified by regular expressions.
java.util.stream
Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
javax.annotation.processing
Facilities for declaring annotation processors and for allowing annotation processors to communicate with an annotation processing tool environment.
javax.lang.model
Classes and hierarchies of packages used to model the Java programming language.
javax.lang.model.element
Interfaces used to model elements of the Java programming language.
javax.lang.model.util
Utilities to assist in the processing of program elements and types.
javax.swing.text
Provides classes and interfaces that deal with editable and noneditable text components.
javax.tools
Provides interfaces for tools which can be invoked from a program, for example, compilers.