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Package java.io

Changed Classes and Interfaces
BufferedInputStream A BufferedInputStream adds functionality to another input stream-namely the ability to buffer the input and to support the mark and reset methods.
BufferedOutputStream The class implements a buffered output stream.
BufferedReader Read text from a character-input stream buffering characters so as to provide for the efficient reading of characters arrays and lines.
BufferedWriter Write text to a character-output stream buffering characters so as to provide for the efficient writing of single characters arrays and strings.
ByteArrayInputStream A ByteArrayInputStream contains an internal buffer that contains bytes that may be read from the stream.
ByteArrayOutputStream This class implements an output stream in which the data is written into a byte array.
CharArrayReader This class implements a character buffer that can be used as a character-input stream.
CharArrayWriter This class implements a character buffer that can be used as an Writer.
CharConversionException Base class for character conversion exceptions.
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 output stream lets an application write primitive Java data types to an output stream in a portable way.
EOFException Signals that an end of file or end of stream has been reached unexpectedly during input.
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.
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.
FileInputStream A FileInputStream obtains input bytes from a file in a file system.
FileNotFoundException Signals that an attempt to open the file denoted by a specified pathname has failed.
FileOutputStream A file output stream is an output stream for writing data to a File or to a FileDescriptor.
FilePermission This class represents access to a file or directory.
FileReader Convenience class for reading character files.
FileWriter Convenience class for writing character files.
FilenameFilter Instances of classes that implement this interface are used to filter filenames.
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.
FilterWriter Abstract class for writing filtered character streams.
IOException Signals that an I/O exception of some sort has occurred.
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 The charset that it uses may be specified by name or may be given explicitly or the platform's default charset may be accepted.
InterruptedIOException Signals that an I/O operation has been interrupted.
InvalidClassException Thrown when the Serialization runtime detects one of the following problems with a Class.
InvalidObjectException Indicates that one or more deserialized objects failed validation tests.
LineNumberInputStream This class is an input stream filter that provides the added functionality of keeping track of the current line number.
LineNumberReader A buffered character-input stream that keeps track of line numbers.
NotActiveException Thrown when serialization or deserialization is not active.
NotSerializableException Thrown when an instance is required to have a Serializable interface.
ObjectInput ObjectInput extends the DataInput interface to include the reading of objects.
ObjectInputStream An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
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 An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
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 Exception indicating the failure of an object read operation due to unread primitive data or the end of data belonging to a serialized object in the stream.
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 The charset that it uses may be specified by name or may be given explicitly or the platform's default charset may be accepted.
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 Print formatted representations of objects to a text-output stream.
PushbackInputStream A PushbackInputStream adds functionality to another input stream namely the ability to "push back" or "unread" one byte.
PushbackReader A character-stream reader that allows characters to be pushed back into the stream.
RandomAccessFile Instances of this class support both reading and writing to a random access file.
Reader Abstract class for reading character streams.
SequenceInputStream A SequenceInputStream represents the logical concatenation of other input 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.
StreamTokenizer The StreamTokenizer class takes an input stream and parses it into "tokens" allowing the tokens to be read one at a time.
StringBufferInputStream This class allows an application to create an input stream in which the bytes read are supplied by the contents of a string.
StringReader A character stream whose source is a string.
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.
UTFDataFormatException Signals that a malformed UTF-8 string has been read in a data input stream or by any class that implements the data input interface.
UnsupportedEncodingException The Character Encoding is not supported.
WriteAbortedException Signals that one of the ObjectStreamExceptions was thrown during a write operation.
Writer Abstract class for writing to character streams.