Package | Description |
---|---|
java.io |
Provides for system input and output through data streams,
serialization and the file system.
|
java.lang |
Provides classes that are fundamental to the design of the Java
programming language.
|
java.net |
Provides the classes for implementing networking applications.
|
Modifier and Type | Field | Description |
---|---|---|
static FileDescriptor |
FileDescriptor.err |
A handle to the standard error stream.
|
static FileDescriptor |
FileDescriptor.in |
A handle to the standard input stream.
|
static FileDescriptor |
FileDescriptor.out |
A handle to the standard output stream.
|
Modifier and Type | Method | Description |
---|---|---|
FileDescriptor |
FileInputStream.getFD() |
Returns the
FileDescriptor
object that represents the connection to
the actual file in the file system being
used by this FileInputStream . |
FileDescriptor |
FileOutputStream.getFD() |
Returns the file descriptor associated with this stream.
|
FileDescriptor |
RandomAccessFile.getFD() |
Returns the opaque file descriptor object associated with this
stream.
|
Constructor | Description |
---|---|
FileInputStream(FileDescriptor fdObj) |
Creates a
FileInputStream by using the file descriptor
fdObj , which represents an existing connection to an
actual file in the file system. |
FileOutputStream(FileDescriptor fdObj) |
Creates a file output stream to write to the specified file
descriptor, which represents an existing connection to an actual
file in the file system.
|
FileReader(FileDescriptor fd) |
Creates a new
FileReader , given the
FileDescriptor to read from. |
FileWriter(FileDescriptor fd) |
Constructs a FileWriter object associated with a file descriptor.
|
Modifier and Type | Method | Description |
---|---|---|
void |
SecurityManager.checkRead(FileDescriptor fd) |
Throws a
SecurityException if the
calling thread is not allowed to read from the specified file
descriptor. |
void |
SecurityManager.checkWrite(FileDescriptor fd) |
Throws a
SecurityException if the
calling thread is not allowed to write to the specified file
descriptor. |
Modifier and Type | Field | Description |
---|---|---|
protected FileDescriptor |
DatagramSocketImpl.fd |
The file descriptor object.
|
protected FileDescriptor |
SocketImpl.fd |
The file descriptor object for this socket.
|
Modifier and Type | Method | Description |
---|---|---|
protected FileDescriptor |
DatagramSocketImpl.getFileDescriptor() |
Gets the datagram socket file descriptor.
|
protected FileDescriptor |
SocketImpl.getFileDescriptor() |
Returns the value of this socket's
fd field. |
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, 2017, Oracle and/or its affiliates. 500 Oracle Parkway
Redwood Shores, CA 94065 USA. All rights reserved.
DRAFT 9-internal+0-adhoc.mlchung.jdk9-jdeps