Package java.io

Interface Summary

Interface	Description
DataInput	This interface is implemented by classes that can data from streams into Java primitive types.
DataOutput	This interface is implemented by classes that can wrte data to streams from Java primitive types.
FileFilter	This interface has one method which is used for filtering pathnames returned in a pathname listing.
FilenameFilter	This interface has one method which is used for filtering filenames returned in a directory listing.
ObjectInput	This interface extends the DataInput interface to provide a facility to read objects as well as primitive types from a stream.
ObjectInputValidation	This class allows an object to validate that it is valid after deserialization has run completely for it and all dependent objects.
ObjectOutput	This interface extends DataOutput to provide the additional facility of writing object instances to a stream.
Serializable	This interface has no methods.

Class Summary

Class	Description
BufferedInputStream	This subclass of FilterInputStream buffers input from an underlying implementation to provide a possibly more efficient read mechanism.
BufferedOutputStream	This class accumulates bytes written in a buffer instead of immediately writing the data to the underlying output sink.
BufferedReader	This subclass of FilterReader buffers input from an underlying implementation to provide a possibly more efficient read mechanism.
BufferedWriter	This class accumulates chars written in a buffer instead of immediately writing the data to the underlying output sink.
ByteArrayInputStream	This class permits an array of bytes to be read as an input stream.
ByteArrayOutputStream	This class allows data to be written to a byte array buffer and and then retrieved by an application.
CharArrayReader	This class permits an array of chars to be read as an input stream.
CharArrayWriter	This class allows data to be written to a char array buffer and and then retrieved by an application.
DataInputStream	This subclass of FilteredInputStream implements the DataInput interface that provides method for reading primitive Java data types from a stream.
DataOutputStream	This class provides a mechanism for writing primitive Java datatypes to an OutputStream in a portable way.
File	This class represents a file or directory on a local disk.
FileDescriptor
FileInputStream
FileOutputStream
FileReader	This class provides a convenient way to set up a Reader to read from a file.
FileWriter	This is a convenience class for writing to files.
FilterInputStream	This is the common superclass of all standard classes that filter input.
FilterOutputStream	This class is the common superclass of output stream classes that filter the output they write.
FilterReader	This is the common superclass of all standard classes that filter input.
FilterWriter	This class is the common superclass of output character stream classes that filter the output they write.
InputStream	This abstract class forms the base of the hierarchy of classes that read input as a stream of bytes.
InputStreamReader	This class reads characters from a byte input stream.
LineNumberInputStream	Deprecated This class is deprecated in favor if LineNumberReader because it operates on ASCII bytes instead of an encoded character stream.
LineNumberReader	This class functions like a standard Reader except that it counts line numbers, and canonicalizes newline characters.
OutputStream	This abstract class forms the base of the hierarchy of classes that write output as a stream of bytes.
OutputStreamWriter	This class writes characters to an output stream that is byte oriented It converts the chars that are written to bytes using an encoding layer, which is specific to a particular encoding standard.
PrintStream	This class prints Java primitive values and object to a stream as text.
PrintWriter	This class prints Java primitive values and objects to a stream as text.
PushbackInputStream	This subclass of FilterInputStream provides the ability to unread data from a stream.
PushbackReader	This subclass of FilterReader provides the ability to unread data from a stream.
RandomAccessFile	This class allows reading and writing of files at random locations.
Reader	This abstract class forms the base of the hierarchy of classes that read input as a stream of characters.
StringReader	This class permits a String to be read as a character input stream.
StringWriter	This class writes chars to an internal StringBuffer that can then be used to retrieve a String.
Writer	This abstract class forms the base of the hierarchy of classes that write output as a stream of chars.

Exception Summary

Exception	Description
CharConversionException
EOFException	This exception is thrown when an InputStream ends unexpectantly.
FileNotFoundException	This exception is thrown when an InputStream ends unexpectantly.
InterruptedIOException	This exception is thrown to indicate an I/O problem of some sort occurred.
InvalidClassException	This exception is thrown when there is some sort of problem with a class during a serialization operation.
InvalidObjectException	This exception is thrown when an object fails a validation test during serialization.
IOException	This exception is thrown to indicate an I/O problem of some sort occurred.
ObjectStreamException	This exception is thrown when a problem occurs during serialization.
StreamCorruptedException	This exception is thrown when there is an error in the data that is read from a stream during de-serialization.
SyncFailedException
UnsupportedEncodingException	This exception is thrown when the requested character encoding is not supported.
UTFDataFormatException	When reading a UTF string from an input stream, this exception is thrown to indicate that the data read is invalid.