java.io.FileOutputStreampublic classFileOutputStreamextends OutputStream { publicFileOutputStream(String path) throws SecurityException, FileNotFoundException; publicFileOutputStream(File file) throws SecurityException, FileNotFoundException; publicFileOutputStream(FileDescriptor fdObj) throws SecurityException; public final FileDescriptorgetFD() throws IOException; public voidwrite(int b) throws IOException; public voidwrite(byte[] b) throws IOException, NullPointerException; public voidwrite(byte[] b, int off, int len) throws IOException, NullPointerException, IndexOutOfBoundsException; public voidclose() throws IOException; protected voidfinalize() throws IOException; }
22.16.1 public
FileOutputStream(String path)
throws SecurityException, FileNotFoundException
This constructor initializes a newly created FileOutputStream by opening a
connection to an actual file, the file named by the path name path in the file system.
A new FileDescriptor object is created to represent this file connection.
First, if there is a security manager, its checkWrite method (§20.17.21) is called with the path argument as its argument.
If the actual file cannot be opened, a FileNotFoundException is thrown.
22.16.2 public
FileOutputStream(File file)
throws SecurityException, FileNotFoundException
This constructor initializes a newly created FileOutputStream by opening a
connection to an actual file, the file named by file in the file system. A new
FileDescriptor object is created to represent this file connection.
First, if there is a security manager, its checkWrite method (§20.17.21) is called with the path represented by the file argument as its argument.
If the actual file cannot be opened, a FileNotFoundException is thrown.
22.16.3 public
FileOutputStream(FileDescriptor fdObj)
throws SecurityException
This constructor initializes a newly created FileOutputStream by using the file
descriptor fdObj, which represents an existing connection to an actual file in the
file system.
First, if there is a security manager, its checkWrite method (§20.17.20) is called with the file descriptor fdObj argument as its argument.
22.16.4 public final FileDescriptor
getFD() throws IOException
This method returns the FileDescriptor object (§22.26) that represents the connection
to the actual file in the file system being used by this FileOutputStream.
22.16.5 public void
write(int b) throws IOException
The byte for this operation is written to the actual file to which this file output stream is connected.
Implements the write method of OutputStream (§22.15.1).
22.16.6 public void
write(byte[] b)
throws IOException, NullPointerException
Bytes for this operation are written to the actual file to which this file output stream is connected.
Overrides the write method of OutputStream (§22.15.2).
22.16.7 public void
write(byte[] b, int off, int len)
throws IOException, NullPointerException, IndexOutOfBoundsException
Bytes for this operation are written to the actual file to which this file output stream is connected.
Overrides the write method of OutputStream (§22.15.3).
22.16.8 public void
close() throws IOException
This file output stream is closed and may no longer be used for writing bytes.
Overrides the close method of OutputStream (§22.15.5).
22.16.9 protected void
finalize() throws IOException
A FileOutputStream uses finalization to clean up the connection to the actual
file.
Contents | Prev | Next | Index
Java Language Specification (HTML generated by Suzette Pelouch on February 24, 1998)
Copyright © 1996 Sun Microsystems, Inc.
All rights reserved
Please send any comments or corrections to doug.kramer@sun.com