Overview | Package | Class | Use | Tree | Deprecated | Index | Help
| J2ME Foundation
PREV NEXT | FRAMES NO FRAMES

## Uses of Package
java.io

Packages that use java.io
java.awt |
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.reflect | Provides classes and interfaces for obtaining reflective information about classes and objects.
java.math |
java.net | Provides the classes for implementing networking applications.
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java.security.acl | The classes and interfaces in this package have been superseded by classes in the java.security package.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.
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.text | Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.
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.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.zip | Provides classes for reading and writing the standard ZIP and GZIP file formats.
javax.microedition.io |

Classes in java.io used by java.awt
Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

Classes in java.io used by java.io
BufferedReader Read text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
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.
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 translates them into characters according to a specified character encoding.
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 programatic 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.
OptionalDataException Unexpected data appeared in an ObjectInputStream trying to read an Object.
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 translated into bytes according to a specified character encoding.
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.
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.
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
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 Print 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.reflect
PrintStream A `PrintStream` adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
PrintWriter Print 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.math
Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

Classes in java.io used by java.net
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.
Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

Classes in java.io used by java.security
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.
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 Print 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.security.acl
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
InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
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 java.security.interfaces
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
Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

Classes in java.io used by java.text
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.util
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 Print 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.util.jar
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.
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.zip
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.
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.microedition.io
DataInput The `DataInput` interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
DataInputStream A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
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.
DataOutputStream A data input stream lets an application write primitive Java data types to an output stream in a portable way.
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.

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
| J2ME Foundation
PREV NEXT | FRAMES NO FRAMES

Java is a trademark or registred trademark of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-2000 Sun Microsystems, Inc. 901 San Antonio Road,
Palo, Alto, California, 94303, U.S.A All Rights Reserved. < /font >