Java™ Platform
Standard Ed. 8

Uses of Package
java.io

  • Packages that use java.io 
    Package Description
    java.applet
    Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context.
    java.awt
    Contains all of the classes for creating user interfaces and for painting graphics and images.
    java.awt.color
    Provides classes for color spaces.
    java.awt.datatransfer
    Provides interfaces and classes for transferring data between and within applications.
    java.awt.dnd
    Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.
    java.awt.event
    Provides interfaces and classes for dealing with different types of events fired by AWT components.
    java.awt.font
    Provides classes and interface relating to fonts.
    java.awt.geom
    Provides the Java 2D classes for defining and performing operations on objects related to two-dimensional geometry.
    java.awt.image
    Provides classes for creating and modifying images.
    java.awt.image.renderable
    Provides classes and interfaces for producing rendering-independent images.
    java.awt.print
    Provides classes and interfaces for a general printing API.
    java.beans
    Contains classes related to developing beans -- components based on the JavaBeans™ architecture.
    java.beans.beancontext
    Provides classes and interfaces relating to bean context.
    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.lang.annotation
    Provides library support for the Java programming language annotation facility.
    java.lang.instrument
    Provides services that allow Java programming language agents to instrument programs running on the JVM.
    java.lang.invoke
    The java.lang.invoke package contains dynamic language support provided directly by the Java core class libraries and virtual machine.
    java.lang.management
    Provides the management interfaces for monitoring and management of the Java virtual machine and other components in the Java runtime.
    java.lang.reflect
    Provides classes and interfaces for obtaining reflective information about classes and objects.
    java.math
    Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal).
    java.net
    Provides the classes for implementing networking applications.
    java.nio
    Defines buffers, which are containers for data, and provides an overview of the other NIO packages.
    java.nio.channels
    Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
    java.nio.channels.spi
    Service-provider classes for the java.nio.channels package.
    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.nio.file.attribute
    Interfaces and classes providing access to file and file system attributes.
    java.nio.file.spi
    Service-provider classes for the java.nio.file package.
    java.rmi
    Provides the RMI package.
    java.rmi.activation
    Provides support for RMI Object Activation.
    java.rmi.dgc
    Provides classes and interface for RMI distributed garbage-collection (DGC).
    java.rmi.server
    Provides classes and interfaces for supporting the server side of RMI.
    java.security
    Provides the classes and interfaces for the security framework.
    java.security.acl
    The classes and interfaces in this package have been superseded by classes in the java.security package.
    java.security.cert
    Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
    java.security.interfaces
    Provides interfaces for generating RSA (Rivest, Shamir and Adleman AsymmetricCipher algorithm) keys as defined in the RSA Laboratory Technical Note PKCS#1, and DSA (Digital Signature Algorithm) keys as defined in NIST's FIPS-186.
    java.security.spec
    Provides classes and interfaces for key specifications and algorithm parameter specifications.
    java.sql
    Provides the API for accessing and processing data stored in a data source (usually a relational database) using the JavaTM programming language.
    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.chrono
    Generic API for calendar systems other than the default ISO.
    java.time.format
    Provides classes to print and parse dates and times.
    java.time.temporal
    Access to date and time using fields and units, and date time adjusters.
    java.time.zone
    Support for time-zones and their rules.
    java.util
    Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
    java.util.concurrent
    Utility classes commonly useful in concurrent programming.
    java.util.concurrent.atomic
    A small toolkit of classes that support lock-free thread-safe programming on single variables.
    java.util.concurrent.locks
    Interfaces and classes providing a framework for locking and waiting for conditions that is distinct from built-in synchronization and monitors.
    java.util.jar
    Provides classes for reading and writing the JAR (Java ARchive) file format, which is based on the standard ZIP file format with an optional manifest file.
    java.util.logging
    Provides the classes and interfaces of the JavaTM 2 platform's core logging facilities.
    java.util.prefs
    This package allows applications to store and retrieve user and system preference and configuration data.
    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.
    java.util.zip
    Provides classes for reading and writing the standard ZIP and GZIP file formats.
    javax.accessibility
    Defines a contract between user-interface components and an assistive technology that provides access to those components.
    javax.activation  
    javax.activity
    Contains Activity service related exceptions thrown by the ORB machinery during unmarshalling.
    javax.annotation  
    javax.annotation.processing
    Facilities for declaring annotation processors and for allowing annotation processors to communicate with an annotation processing tool environment.
    javax.crypto
    Provides the classes and interfaces for cryptographic operations.
    javax.crypto.interfaces
    Provides interfaces for Diffie-Hellman keys as defined in RSA Laboratories' PKCS #3.
    javax.crypto.spec
    Provides classes and interfaces for key specifications and algorithm parameter specifications.
    javax.imageio
    The main package of the Java Image I/O API.
    javax.imageio.metadata
    A package of the Java Image I/O API dealing with reading and writing metadata.
    javax.imageio.spi
    A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.
    javax.imageio.stream
    A package of the Java Image I/O API dealing with low-level I/O from files and streams.
    javax.jws  
    javax.jws.soap  
    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.type
    Interfaces used to model Java programming language types.
    javax.lang.model.util
    Utilities to assist in the processing of program elements and types.
    javax.management
    Provides the core classes for the Java Management Extensions.
    javax.management.loading
    Provides the classes which implement advanced dynamic loading.
    javax.management.modelmbean
    Provides the definition of the ModelMBean classes.
    javax.management.monitor
    Provides the definition of the monitor classes.
    javax.management.openmbean
    Provides the open data types and Open MBean descriptor classes.
    javax.management.relation
    Provides the definition of the Relation Service.
    javax.management.remote
    Interfaces for remote access to JMX MBean servers.
    javax.management.remote.rmi
    The RMI connector is a connector for the JMX Remote API that uses RMI to transmit client requests to a remote MBean server.
    javax.management.timer
    Provides the definition of the Timer MBean.
    javax.naming
    Provides the classes and interfaces for accessing naming services.
    javax.naming.directory
    Extends the javax.naming package to provide functionality for accessing directory services.
    javax.naming.event
    Provides support for event notification when accessing naming and directory services.
    javax.naming.ldap
    Provides support for LDAPv3 extended operations and controls.
    javax.naming.spi  
    javax.net
    Provides classes for networking applications.
    javax.net.ssl
    Provides classes for the secure socket package.
    javax.print
    Provides the principal classes and interfaces for the JavaTM Print Service API.
    javax.print.attribute
    Provides classes and interfaces that describe the types of JavaTM Print Service attributes and how they can be collected into attribute sets.
    javax.print.attribute.standard
    Package javax.print.attribute.standard contains classes for specific printing attributes.
    javax.print.event
    Package javax.print.event contains event classes and listener interfaces.
    javax.rmi.CORBA
    Contains portability APIs for RMI-IIOP.
    javax.rmi.ssl
    Provides implementations of RMIClientSocketFactory and RMIServerSocketFactory over the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.
    javax.script
    The scripting API consists of interfaces and classes that define Java TM Scripting Engines and provides a framework for their use in Java applications.
    javax.security.auth
    This package provides a framework for authentication and authorization.
    javax.security.auth.callback
    This package provides the classes necessary for services to interact with applications in order to retrieve information (authentication data including usernames or passwords, for example) or to display information (error and warning messages, for example).
    javax.security.auth.kerberos
    This package contains utility classes related to the Kerberos network authentication protocol.
    javax.security.auth.login
    This package provides a pluggable authentication framework.
    javax.security.auth.x500
    This package contains the classes that should be used to store X500 Principal and X500 Private Credentials in a Subject.
    javax.security.cert
    Provides classes for public key certificates.
    javax.security.sasl
    Contains class and interfaces for supporting SASL.
    javax.sound.midi
    Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.
    javax.sound.midi.spi
    Supplies interfaces for service providers to implement when offering new MIDI devices, MIDI file readers and writers, or sound bank readers.
    javax.sound.sampled
    Provides interfaces and classes for capture, processing, and playback of sampled audio data.
    javax.sound.sampled.spi
    Supplies abstract classes for service providers to subclass when offering new audio devices, sound file readers and writers, or audio format converters.
    javax.sql
    Provides the API for server side data source access and processing from the JavaTM programming language.
    javax.sql.rowset
    Standard interfaces and base classes for JDBC RowSet implementations.
    javax.sql.rowset.serial
    Provides utility classes to allow serializable mappings between SQL types and data types in the Java programming language.
    javax.sql.rowset.spi
    The standard classes and interfaces that a third party vendor has to use in its implementation of a synchronization provider.
    javax.swing
    Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
    javax.swing.border
    Provides classes and interface for drawing specialized borders around a Swing component.
    javax.swing.colorchooser
    Contains classes and interfaces used by the JColorChooser component.
    javax.swing.event
    Provides for events fired by Swing components.
    javax.swing.filechooser
    Contains classes and interfaces used by the JFileChooser component.
    javax.swing.plaf
    Provides one interface and many abstract classes that Swing uses to provide its pluggable look-and-feel capabilities.
    javax.swing.plaf.basic
    Provides user interface objects built according to the Basic look and feel.
    javax.swing.plaf.metal
    Provides user interface objects built according to the Java look and feel (once codenamed Metal), which is the default look and feel.
    javax.swing.plaf.multi
    Provides user interface objects that combine two or more look and feels.
    javax.swing.plaf.nimbus
    Provides user interface objects built according to the cross-platform Nimbus look and feel.
    javax.swing.plaf.synth
    Synth is a skinnable look and feel in which all painting is delegated.
    javax.swing.table
    Provides classes and interfaces for dealing with javax.swing.JTable.
    javax.swing.text
    Provides classes and interfaces that deal with editable and noneditable text components.
    javax.swing.text.html
    Provides the class HTMLEditorKit and supporting classes for creating HTML text editors.
    javax.swing.text.html.parser
    Provides the default HTML parser, along with support classes.
    javax.swing.text.rtf
    Provides a class (RTFEditorKit) for creating Rich-Text-Format text editors.
    javax.swing.tree
    Provides classes and interfaces for dealing with javax.swing.JTree.
    javax.swing.undo
    Allows developers to provide support for undo/redo in applications such as text editors.
    javax.tools
    Provides interfaces for tools which can be invoked from a program, for example, compilers.
    javax.transaction
    Contains three exceptions thrown by the ORB machinery during unmarshalling.
    javax.transaction.xa
    Provides the API that defines the contract between the transaction manager and the resource manager, which allows the transaction manager to enlist and delist resource objects (supplied by the resource manager driver) in JTA transactions.
    javax.xml.bind
    Provides a runtime binding framework for client applications including unmarshalling, marshalling, and validation capabilities.
    javax.xml.bind.annotation
    Defines annotations for customizing Java program elements to XML Schema mapping.
    javax.xml.bind.helpers
    JAXB Provider Use Only: Provides partial default implementations for some of the javax.xml.bind interfaces.
    javax.xml.crypto
    Common classes for XML cryptography.
    javax.xml.crypto.dsig
    Classes for generating and validating XML digital signatures.
    javax.xml.datatype
    XML/Java Type Mappings.
    javax.xml.namespace
    XML Namespace processing.
    javax.xml.parsers
    Provides classes allowing the processing of XML documents.
    javax.xml.soap
    Provides the API for creating and building SOAP messages.
    javax.xml.stream  
    javax.xml.stream.events  
    javax.xml.transform
    This package defines the generic APIs for processing transformation instructions, and performing a transformation from source to result.
    javax.xml.transform.stream
    This package implements stream- and URI- specific transformation APIs.
    javax.xml.validation
    This package provides an API for validation of XML documents.
    javax.xml.ws
    This package contains the core JAX-WS APIs.
    javax.xml.ws.handler
    This package defines APIs for message handlers.
    javax.xml.ws.http
    This package defines APIs specific to the HTTP binding.
    javax.xml.ws.soap
    This package defines APIs specific to the SOAP binding.
    javax.xml.ws.spi.http
    Provides HTTP SPI that is used for portable deployment of JAX-WS web services in containers(for e.g.
    javax.xml.xpath
    This package provides an object-model neutral API for the evaluation of XPath expressions and access to the evaluation environment.
    org.ietf.jgss
    This package presents a framework that allows application developers to make use of security services like authentication, data integrity and data confidentiality from a variety of underlying security mechanisms like Kerberos, using a unified API.
    org.omg.CORBA
    Provides the mapping of the OMG CORBA APIs to the JavaTM programming language, including the class ORB, which is implemented so that a programmer can use it as a fully-functional Object Request Broker (ORB).
    org.omg.CORBA.DynAnyPackage
    Provides the exceptions used with the DynAny interface (InvalidValue, Invalid, InvalidSeq, and TypeMismatch).
    org.omg.CORBA.ORBPackage
    Provides the exception InvalidName, which is thrown by the method ORB.resolve_initial_references and the exception InconsistentTypeCode, which is thrown by the Dynamic Any creation methods in the ORB class.
    org.omg.CORBA.TypeCodePackage
    Provides the user-defined exceptions BadKind and Bounds, which are thrown by methods in in the class TypeCode.
    org.omg.CORBA.portable
    Provides a portability layer, that is, a set of ORB APIs that makes it possible for code generated by one vendor to run on another vendor's ORB.
    org.omg.CORBA_2_3.portable
    Provides methods for the input and output of value types, and contains other updates to the org/omg/CORBA/portable package.
    org.omg.CosNaming
    Provides a naming service for Java IDL.
    org.omg.CosNaming.NamingContextExtPackage
    This package contains the following classes, which are used in org.omg.CosNaming.NamingContextExt:
    org.omg.CosNaming.NamingContextPackage
    This package contains Exception classes for the org.omg.CosNaming package.
    org.omg.Dynamic
    This package contains the Dynamic module specified in the OMG Portable Interceptor specification, http://cgi.omg.org/cgi-bin/doc?ptc/2000-08-06, section 21.9.
    org.omg.DynamicAny
    Provides classes and interfaces that enable traversal of the data value associated with an any at runtime, and extraction of the primitive constituents of the data value.
    org.omg.IOP
    This package contains the IOP module specified in the OMG document The Common Object Request Broker: Architecture and Specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07, section 13.6.
    org.omg.IOP.CodecFactoryPackage
    This package contains the exceptions specified in the IOP::CodeFactory interface (as part of the Portable Interceptors spec).
    org.omg.IOP.CodecPackage
    This package is generated from the IOP::Codec IDL interface definition.
    org.omg.PortableInterceptor
    Provides a mechanism to register ORB hooks through which ORB services can intercept the normal flow of execution of the ORB.
    org.omg.PortableInterceptor.ORBInitInfoPackage
    This package contains the exceptions and typedefs from the ORBInitInfo local interface of the PortableInterceptor module specified in the OMG Portable Interceptor specification, http://cgi.omg.org/cgi-bin/doc?ptc/2000-08-06, section 21.7.2.
    org.omg.PortableServer
    Provides classes and interfaces for making the server side of your applications portable across multivendor ORBs.
    org.omg.PortableServer.CurrentPackage
    Provides method implementations with access to the identity of the object on which the method was invoked.
    org.omg.PortableServer.POAManagerPackage
    Encapsulates the processing state of the POAs it is associated with.
    org.omg.PortableServer.POAPackage
    Allows programmers to construct object implementations that are portable between different ORB products.
    org.omg.SendingContext
    Provides support for the marshalling of value types.
    org.omg.stub.java.rmi
    Contains RMI-IIOP Stubs for the Remote types that occur in the java.rmi package.
    org.w3c.dom
    Provides the interfaces for the Document Object Model (DOM).
    org.w3c.dom.events  
    org.w3c.dom.ls  
    org.xml.sax
    This package provides the core SAX APIs.
    org.xml.sax.ext
    This package contains interfaces to SAX2 facilities that conformant SAX drivers won't necessarily support.
    org.xml.sax.helpers
    This package contains "helper" classes, including support for bootstrapping SAX-based applications.
  • Classes in java.io used by java.applet 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    FilenameFilter
    Instances of classes that implement this interface are used to filter filenames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectOutputStream
    An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
    ObjectStreamException
    Superclass of all exceptions specific to Object Stream classes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.color 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectStreamException
    Superclass of all exceptions specific to Object Stream classes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.datatransfer 
    Class and Description
    Externalizable
    Only the identity of the class of an Externalizable instance is written in the serialization stream and it is the responsibility of the class to save and restore the contents of its instances.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInput
    ObjectInput extends the DataInput interface to include the reading of objects.
    ObjectOutput
    ObjectOutput extends the DataOutput interface to include writing of objects.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.dnd 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.event 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.font 
    Class and Description
    InvalidObjectException
    Indicates that one or more deserialized objects failed validation tests.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.geom 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.image 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.image.renderable 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.awt.print 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.beans 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.beans.beancontext 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInputStream
    An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
    ObjectOutputStream
    An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.io 
    Class and Description
    BufferedReader
    Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
    CharArrayWriter
    This class implements a character buffer that can be used as an Writer.
    Closeable
    A Closeable is a source or destination of data that can be closed.
    Console
    Methods to access the character-based console device, if any, associated with the current Java virtual machine.
    DataInput
    The DataInput interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
    DataOutput
    The DataOutput interface provides for converting data from any of the Java primitive types to a series of bytes and writing these bytes to a binary stream.
    File
    An abstract representation of file and directory pathnames.
    FileDescriptor
    Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
    FileFilter
    A filter for abstract pathnames.
    FilenameFilter
    Instances of classes that implement this interface are used to filter filenames.
    FileNotFoundException
    Signals that an attempt to open the file denoted by a specified pathname has failed.
    FilterInputStream
    A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
    FilterOutputStream
    This class is the superclass of all classes that filter output streams.
    FilterReader
    Abstract class for reading filtered character streams.
    Flushable
    A Flushable is a destination of data that can be flushed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    InputStreamReader
    An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified charset.
    InvalidObjectException
    Indicates that one or more deserialized objects failed validation tests.
    IOException
    Signals that an I/O exception of some sort has occurred.
    NotActiveException
    Thrown when serialization or deserialization is not active.
    ObjectInput
    ObjectInput extends the DataInput interface to include the reading of objects.
    ObjectInputStream.GetField
    Provide access to the persistent fields read from the input stream.
    ObjectInputValidation
    Callback interface to allow validation of objects within a graph.
    ObjectOutput
    ObjectOutput extends the DataOutput interface to include writing of objects.
    ObjectOutputStream.PutField
    Provide programmatic access to the persistent fields to be written to ObjectOutput.
    ObjectStreamClass
    Serialization's descriptor for classes.
    ObjectStreamConstants
    Constants written into the Object Serialization Stream.
    ObjectStreamException
    Superclass of all exceptions specific to Object Stream classes.
    ObjectStreamField
    A description of a Serializable field from a Serializable class.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    OutputStreamWriter
    An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified charset.
    PipedInputStream
    A piped input stream should be connected to a piped output stream; the piped input stream then provides whatever data bytes are written to the piped output stream.
    PipedOutputStream
    A piped output stream can be connected to a piped input stream to create a communications pipe.
    PipedReader
    Piped character-input streams.
    PipedWriter
    Piped character-output streams.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    SerializablePermission
    This class is for Serializable permissions.
    StreamCorruptedException
    Thrown when control information that was read from an object stream violates internal consistency checks.
    StringWriter
    A character stream that collects its output in a string buffer, which can then be used to construct a string.
    SyncFailedException
    Signals that a sync operation has failed.
    UnsupportedEncodingException
    The Character Encoding is not supported.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by java.lang 
    Class and Description
    Console
    Methods to access the character-based console device, if any, associated with the current Java virtual machine.
    File
    An abstract representation of file and directory pathnames.
    FileDescriptor
    Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    UnsupportedEncodingException
    The Character Encoding is not supported.
  • Classes in java.io used by java.lang.annotation 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.lang.instrument 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.lang.invoke 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.lang.management 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.lang.reflect 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.math 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.net 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    FileDescriptor
    Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    InterruptedIOException
    Signals that an I/O operation has been interrupted.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    UnsupportedEncodingException
    The Character Encoding is not supported.
  • Classes in java.io used by java.nio 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.nio.channels 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by java.nio.channels.spi 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    IOException
    Signals that an I/O exception of some sort has occurred.
  • Classes in java.io used by java.nio.charset 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.nio.file 
    Class and Description
    BufferedReader
    Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
    BufferedWriter
    Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.nio.file.attribute 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.nio.file.spi 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
  • Classes in java.io used by java.rmi 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.rmi.activation 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.rmi.dgc 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.rmi.server 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    DataInput
    The DataInput interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
    DataOutput
    The DataOutput interface provides for converting data from any of the Java primitive types to a series of bytes and writing these bytes to a binary stream.
    Externalizable
    Only the identity of the class of an Externalizable instance is written in the serialization stream and it is the responsibility of the class to save and restore the contents of its instances.
    FilterOutputStream
    This class is the superclass of all classes that filter output streams.
    Flushable
    A Flushable is a destination of data that can be flushed.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInput
    ObjectInput extends the DataInput interface to include the reading of objects.
    ObjectOutput
    ObjectOutput extends the DataOutput interface to include writing of objects.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    StreamCorruptedException
    Thrown when control information that was read from an object stream violates internal consistency checks.
  • Classes in java.io used by java.security 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    FilterInputStream
    A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
    FilterOutputStream
    This class is the superclass of all classes that filter output streams.
    Flushable
    A Flushable is a destination of data that can be flushed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectStreamException
    Superclass of all exceptions specific to Object Stream classes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.security.acl 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.security.cert 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectStreamException
    Superclass of all exceptions specific to Object Stream classes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.security.interfaces 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.security.spec 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.sql 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by java.text 
    Class and Description
    InvalidObjectException
    Indicates that one or more deserialized objects failed validation tests.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.time 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.time.chrono 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.time.format 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.time.temporal 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.time.zone 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    FileNotFoundException
    Signals that an attempt to open the file denoted by a specified pathname has failed.
    Flushable
    A Flushable is a destination of data that can be flushed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    UnsupportedEncodingException
    The Character Encoding is not supported.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by java.util.concurrent 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util.concurrent.atomic 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util.concurrent.locks 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util.jar 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    FilterInputStream
    A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
    FilterOutputStream
    This class is the superclass of all classes that filter output streams.
    Flushable
    A Flushable is a destination of data that can be flushed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util.logging 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    UnsupportedEncodingException
    The Character Encoding is not supported.
  • Classes in java.io used by java.util.prefs 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util.regex 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util.stream 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by java.util.zip 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    FilterInputStream
    A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
    FilterOutputStream
    This class is the superclass of all classes that filter output streams.
    Flushable
    A Flushable is a destination of data that can be flushed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.accessibility 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
  • Classes in java.io used by javax.activation 
    Class and Description
    Externalizable
    Only the identity of the class of an Externalizable instance is written in the serialization stream and it is the responsibility of the class to save and restore the contents of its instances.
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInput
    ObjectInput extends the DataInput interface to include the reading of objects.
    ObjectOutput
    ObjectOutput extends the DataOutput interface to include writing of objects.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.activity 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.annotation 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.annotation.processing 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.crypto 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    FilterInputStream
    A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
    FilterOutputStream
    This class is the superclass of all classes that filter output streams.
    Flushable
    A Flushable is a destination of data that can be flushed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.crypto.interfaces 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.crypto.spec 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.imageio 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.imageio.metadata 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.imageio.spi 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    IOException
    Signals that an I/O exception of some sort has occurred.
  • Classes in java.io used by javax.imageio.stream 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    DataInput
    The DataInput interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
    DataOutput
    The DataOutput interface provides for converting data from any of the Java primitive types to a series of bytes and writing these bytes to a binary stream.
    File
    An abstract representation of file and directory pathnames.
    FileNotFoundException
    Signals that an attempt to open the file denoted by a specified pathname has failed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    RandomAccessFile
    Instances of this class support both reading and writing to a random access file.
  • Classes in java.io used by javax.jws 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.jws.soap 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.lang.model 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.lang.model.element 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.lang.model.type 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.lang.model.util 
    Class and Description
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.management 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInputStream
    An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.loading 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    Externalizable
    Only the identity of the class of an Externalizable instance is written in the serialization stream and it is the responsibility of the class to save and restore the contents of its instances.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInput
    ObjectInput extends the DataInput interface to include the reading of objects.
    ObjectOutput
    ObjectOutput extends the DataOutput interface to include writing of objects.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.modelmbean 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.monitor 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.openmbean 
    Class and Description
    ObjectStreamException
    Superclass of all exceptions specific to Object Stream classes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.relation 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.remote 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.remote.rmi 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.management.timer 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.naming 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.naming.directory 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.naming.event 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.naming.ldap 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.naming.spi 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.net 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
  • Classes in java.io used by javax.net.ssl 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.print 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.print.attribute 
    Class and Description
    ObjectStreamException
    Superclass of all exceptions specific to Object Stream classes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.print.attribute.standard 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.print.event 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.rmi.CORBA 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInputStream
    An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
    ObjectOutputStream
    An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.rmi.ssl 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.script 
    Class and Description
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.security.auth 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.security.auth.callback 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.security.auth.kerberos 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.security.auth.login 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.security.auth.x500 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.security.cert 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
  • Classes in java.io used by javax.security.sasl 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.sound.midi 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.sound.midi.spi 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
  • Classes in java.io used by javax.sound.sampled 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.sound.sampled.spi 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
  • Classes in java.io used by javax.sql 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.sql.rowset 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.sql.rowset.serial 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.sql.rowset.spi 
    Class and Description
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.swing 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    FilterInputStream
    A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.border 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.colorchooser 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.event 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.filechooser 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    IOException
    Signals that an I/O exception of some sort has occurred.
  • Classes in java.io used by javax.swing.plaf 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.plaf.basic 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.plaf.metal 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.plaf.multi 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
  • Classes in java.io used by javax.swing.plaf.nimbus 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.plaf.synth 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.table 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.text 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    ObjectInputStream
    An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
    ObjectOutputStream
    An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.swing.text.html 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.swing.text.html.parser 
    Class and Description
    DataInputStream
    A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.text.rtf 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.swing.tree 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.swing.undo 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.tools 
    Class and Description
    Closeable
    A Closeable is a source or destination of data that can be closed.
    File
    An abstract representation of file and directory pathnames.
    Flushable
    A Flushable is a destination of data that can be flushed.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.transaction 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.transaction.xa 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.bind 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.xml.bind.annotation 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.bind.helpers 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    UnsupportedEncodingException
    The Character Encoding is not supported.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.xml.crypto 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.crypto.dsig 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.datatype 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.namespace 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.parsers 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.soap 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.stream 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.xml.stream.events 
    Class and Description
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.xml.transform 
    Class and Description
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.transform.stream 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by javax.xml.validation 
    Class and Description
    File
    An abstract representation of file and directory pathnames.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.ws 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.ws.handler 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.ws.http 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.ws.soap 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by javax.xml.ws.spi.http 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
  • Classes in java.io used by javax.xml.xpath 
    Class and Description
    PrintStream
    A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
    PrintWriter
    Prints formatted representations of objects to a text-output stream.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.ietf.jgss 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CORBA 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CORBA.DynAnyPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CORBA.ORBPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CORBA.TypeCodePackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CORBA.portable 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CORBA_2_3.portable 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CosNaming 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CosNaming.NamingContextExtPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.CosNaming.NamingContextPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.Dynamic 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.DynamicAny 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.IOP 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.IOP.CodecFactoryPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.IOP.CodecPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.PortableInterceptor 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.PortableInterceptor.ORBInitInfoPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.PortableServer 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.PortableServer.CurrentPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.PortableServer.POAManagerPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.PortableServer.POAPackage 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.SendingContext 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.omg.stub.java.rmi 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.w3c.dom 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.w3c.dom.events 
    Class and Description
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.w3c.dom.ls 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    OutputStream
    This abstract class is the superclass of all classes representing an output stream of bytes.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
    Writer
    Abstract class for writing to character streams.
  • Classes in java.io used by org.xml.sax 
    Class and Description
    InputStream
    This abstract class is the superclass of all classes representing an input stream of bytes.
    IOException
    Signals that an I/O exception of some sort has occurred.
    Reader
    Abstract class for reading character streams.
    Serializable
    Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  • Classes in java.io used by org.xml.sax.ext 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
  • Classes in java.io used by org.xml.sax.helpers 
    Class and Description
    IOException
    Signals that an I/O exception of some sort has occurred.
Java™ Platform
Standard Ed. 8

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, 2022, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

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