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Uses of Class
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Java 2 Platform SE v1.3.1: Uses of Class java.io.File - JDK 5 Documentation v1.3.1, Java 2 SDK 英文文档
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JavaTM 2 Platform Std. Ed. v1.3.1 |
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Uses of Class
java.io.File
| Packages that use File | |
| 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.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.sound.midi | Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data. |
| javax.sound.midi.spi | Supplies interfaces for service providers to implement when offering new MIDI devices, MIDI file readers and writers, or sound bank readers. |
| javax.sound.sampled | Provides interfaces and classes for capture, processing, and playback of sampled audio data. |
| javax.sound.sampled.spi | Supplies abstract classes for service providers to subclass when offering new audio devices, sound file readers and writers, or audio format converters. |
| javax.swing | Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms. |
| javax.swing.filechooser | Contains classes and interfaces used by the JFileChooser component. |
| javax.swing.plaf | Provides one interface and many abstract classes that Swing uses to provide its pluggable look-and-feel capabilities. |
| javax.swing.plaf.basic | Provides user interface objects built according to the Basic look-and-feel. |
| javax.swing.plaf.metal | Provides user interface objects built according to the ``metal'' look-and-feel. |
| javax.swing.plaf.multi | The multiplexing look and feel allows users to combine auxiliary look and feels with the default look and feel. |
| Uses of File in java.io |
| Methods in java.io that return File | |
File |
File.getParentFile()
Returns the abstract pathname of this abstract pathname's parent, or null if this pathname does not name a parent
directory. |
File |
File.getAbsoluteFile()
Returns the absolute form of this abstract pathname. |
File |
File.getCanonicalFile()
Returns the canonical form of this abstract pathname. |
File[] |
File.listFiles()
Returns an array of abstract pathnames denoting the files in the directory denoted by this abstract pathname. |
File[] |
File.listFiles(FilenameFilter filter)
Returns an array of abstract pathnames denoting the files and directories in the directory denoted by this abstract pathname that satisfy the specified filter. |
File[] |
File.listFiles(FileFilter filter)
Returns an array of abstract pathnames denoting the files and directories in the directory denoted by this abstract pathname that satisfy the specified filter. |
static File[] |
File.listRoots()
List the available filesystem roots. |
static File |
File.createTempFile(String prefix,
String suffix,
File directory)
Creates a new empty file in the specified directory, using the given prefix and suffix strings to generate its name. |
static File |
File.createTempFile(String prefix,
String suffix)
Creates an empty file in the default temporary-file directory, using the given prefix and suffix to generate its name. |
| Methods in java.io with parameters of type File | |
boolean |
FileFilter.accept(File pathname)
Tests whether or not the specified abstract pathname should be included in a pathname list. |
boolean |
File.renameTo(File dest)
Renames the file denoted by this abstract pathname. |
static File |
File.createTempFile(String prefix,
String suffix,
File directory)
Creates a new empty file in the specified directory, using the given prefix and suffix strings to generate its name. |
int |
File.compareTo(File pathname)
Compares two abstract pathnames lexicographically. |
boolean |
FilenameFilter.accept(File dir,
String name)
Tests if a specified file should be included in a file list. |
| Constructors in java.io with parameters of type File | |
FileOutputStream(File file)
Creates a file output stream to write to the file represented by the specified File object. |
|
File(File parent,
String child)
Creates a new File instance from a parent abstract
pathname and a child pathname string. |
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FileReader(File file)
Creates a new FileReader, given the File to read from. |
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FileWriter(File file)
Constructs a FileWriter object given a File object. |
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RandomAccessFile(File file,
String mode)
Creates a random access file stream to read from, and optionally to write to, the file specified by the File argument. |
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FileInputStream(File file)
Creates a FileInputStream by
opening a connection to an actual file,
the file named by the File
object file in the file system. |
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| Uses of File in java.lang |
| Methods in java.lang with parameters of type File | |
Process |
Runtime.exec(String command,
String[] envp,
File dir)
Executes the specified string command in a separate process with the specified environment and working directory. |
Process |
Runtime.exec(String[] cmdarray,
String[] envp,
File dir)
Executes the specified command and arguments in a separate process with the specified environment and working directory. |
| Uses of File in java.util.jar |
| Constructors in java.util.jar with parameters of type File | |
JarFile(File file)
Creates a new JarFile to read from the specified
File object. |
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JarFile(File file,
boolean verify)
Creates a new JarFile to read from the specified
File object. |
|
JarFile(File file,
boolean verify,
int mode)
Creates a new JarFile to read from the specified
File object in the specified mode. |
|
| Uses of File in java.util.zip |
| Constructors in java.util.zip with parameters of type File | |
ZipFile(File file,
int mode)
Opens a new ZipFile to read from the specified
File object in the specified mode. |
|
ZipFile(File file)
Opens a ZIP file for reading given the specified File object. |
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| Uses of File in javax.sound.midi |
| Methods in javax.sound.midi with parameters of type File | |
static Soundbank |
MidiSystem.getSoundbank(File file)
Constructs a Soundbank by reading it from the specified
File. |
static MidiFileFormat |
MidiSystem.getMidiFileFormat(File file)
Obtains the MIDI file format of the specified File. |
static Sequence |
MidiSystem.getSequence(File file)
Obtains a MIDI sequence from the specified File. |
static int |
MidiSystem.write(Sequence in,
int type,
File out)
Writes a stream of bytes representing a file of the MIDI file type indicated to the external file provided. |
| Uses of File in javax.sound.midi.spi |
| Methods in javax.sound.midi.spi with parameters of type File | |
abstract Soundbank |
SoundbankReader.getSoundbank(File file)
Obtains a soundbank object from the File provided. |
abstract MidiFileFormat |
MidiFileReader.getMidiFileFormat(File file)
Obtains the MIDI file format of the File provided. |
abstract Sequence |
MidiFileReader.getSequence(File file)
Obtains a MIDI sequence from the File provided. |
abstract int |
MidiFileWriter.write(Sequence in,
int fileType,
File out)
Writes a stream of bytes representing a MIDI file of the file type indicated to the external file provided. |
| Uses of File in javax.sound.sampled |
| Methods in javax.sound.sampled with parameters of type File | |
static AudioFileFormat |
AudioSystem.getAudioFileFormat(File file)
Obtains the audio file format of the specified File. |
static AudioInputStream |
AudioSystem.getAudioInputStream(File file)
Obtains an audio input stream from the provided File. |
static int |
AudioSystem.write(AudioInputStream stream,
AudioFileFormat.Type fileType,
File out)
Writes a stream of bytes representing an audio file of the specified file type to the external file provided. |
| Uses of File in javax.sound.sampled.spi |
| Methods in javax.sound.sampled.spi with parameters of type File | |
abstract int |
AudioFileWriter.write(AudioInputStream stream,
AudioFileFormat.Type fileType,
File out)
Writes a stream of bytes representing an audio file of the file format indicated to the external file provided. |
abstract AudioFileFormat |
AudioFileReader.getAudioFileFormat(File file)
Obtains the audio file format of the File provided. |
abstract AudioInputStream |
AudioFileReader.getAudioInputStream(File file)
Obtains an audio input stream from the File provided. |
| Uses of File in javax.swing |
| Methods in javax.swing that return File | |
File |
JFileChooser.getSelectedFile()
Returns the selected file. |
File[] |
JFileChooser.getSelectedFiles()
Returns a list of selected files if the file chooser is set to allow multiple selection. |
File |
JFileChooser.getCurrentDirectory()
Returns the current directory. |
| Methods in javax.swing with parameters of type File | |
void |
JFileChooser.setSelectedFile(File file)
Sets the selected file. |
void |
JFileChooser.setSelectedFiles(File[] selectedFiles)
Sets the list of selected files if the file chooser is set to allow multiple selection. |
void |
JFileChooser.setCurrentDirectory(File dir)
Sets the current directory. |
void |
JFileChooser.ensureFileIsVisible(File f)
Makes sure that the specified file is viewable, and not hidden. |
String |
JFileChooser.getName(File f)
Returns the filename. |
String |
JFileChooser.getDescription(File f)
Returns the file description. |
String |
JFileChooser.getTypeDescription(File f)
Returns the file type. |
Icon |
JFileChooser.getIcon(File f)
Returns the icon for this file or type of file, depending on the system. |
boolean |
JFileChooser.isTraversable(File f)
Returns true if the file (directory) can be visited. |
boolean |
JFileChooser.accept(File f)
Returns true if the file should be displayed. |
| Constructors in javax.swing with parameters of type File | |
JFileChooser(File currentDirectory)
Constructs a JFileChooser using the given File
as the path. |
|
JFileChooser(File currentDirectory,
FileSystemView fsv)
Constructs a JFileChooser using the given current directory
and FileSystemView. |
|
| Uses of File in javax.swing.filechooser |
| Methods in javax.swing.filechooser that return File | |
abstract File |
FileSystemView.createNewFolder(File containingDir)
creates a new folder with a default folder name. |
abstract File[] |
FileSystemView.getRoots()
Returns all root partitians on this system. |
File |
FileSystemView.getHomeDirectory()
|
File |
FileSystemView.createFileObject(File dir,
String filename)
Returns a File object constructed in dir from the given filename. |
File |
FileSystemView.createFileObject(String path)
Returns a File object constructed from the given path string. |
File[] |
FileSystemView.getFiles(File dir,
boolean useFileHiding)
gets the list of shown (i.e. |
File |
FileSystemView.getParentDirectory(File dir)
Returns the parent directory of dir. |
| Methods in javax.swing.filechooser with parameters of type File | |
String |
FileView.getName(File f)
The name of the file. |
String |
FileView.getDescription(File f)
A human readable description of the file. |
String |
FileView.getTypeDescription(File f)
A human readable description of the type of the file. |
Icon |
FileView.getIcon(File f)
The icon that represents this file in the JFileChooser. |
Boolean |
FileView.isTraversable(File f)
Whether the directory is traversable or not. |
abstract boolean |
FileSystemView.isRoot(File f)
Determines if the given file is a root partition or drive. |
abstract File |
FileSystemView.createNewFolder(File containingDir)
creates a new folder with a default folder name. |
abstract boolean |
FileSystemView.isHiddenFile(File f)
Returns whether a file is hidden or not. |
File |
FileSystemView.createFileObject(File dir,
String filename)
Returns a File object constructed in dir from the given filename. |
File[] |
FileSystemView.getFiles(File dir,
boolean useFileHiding)
gets the list of shown (i.e. |
File |
FileSystemView.getParentDirectory(File dir)
Returns the parent directory of dir. |
abstract boolean |
FileFilter.accept(File f)
Whether the given file is accepted by this filter. |
| Uses of File in javax.swing.plaf |
| Methods in javax.swing.plaf with parameters of type File | |
abstract void |
FileChooserUI.ensureFileIsVisible(JFileChooser fc,
File f)
|
| Uses of File in javax.swing.plaf.basic |
| Methods in javax.swing.plaf.basic with parameters of type File | |
void |
BasicFileChooserUI.ensureFileIsVisible(JFileChooser fc,
File f)
|
boolean |
BasicFileChooserUI.AcceptAllFileFilter.accept(File f)
|
String |
BasicFileChooserUI.BasicFileView.getName(File f)
|
String |
BasicFileChooserUI.BasicFileView.getDescription(File f)
|
String |
BasicFileChooserUI.BasicFileView.getTypeDescription(File f)
|
Icon |
BasicFileChooserUI.BasicFileView.getCachedIcon(File f)
|
void |
BasicFileChooserUI.BasicFileView.cacheIcon(File f,
Icon i)
|
Icon |
BasicFileChooserUI.BasicFileView.getIcon(File f)
|
Boolean |
BasicFileChooserUI.BasicFileView.isTraversable(File f)
|
Boolean |
BasicFileChooserUI.BasicFileView.isHidden(File f)
|
protected boolean |
BasicDirectoryModel.lt(File a,
File b)
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| Uses of File in javax.swing.plaf.metal |
| Methods in javax.swing.plaf.metal with parameters of type File | |
void |
MetalFileChooserUI.ensureFileIsVisible(JFileChooser fc,
File f)
|
| Uses of File in javax.swing.plaf.multi |
| Methods in javax.swing.plaf.multi with parameters of type File | |
void |
MultiFileChooserUI.ensureFileIsVisible(JFileChooser a,
File b)
Call ensureFileIsVisible on each UI handled by this MultiUI. |
|
JavaTM 2 Platform Std. Ed. v1.3.1 |
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| PREV NEXT | FRAMES NO FRAMES | |||||||||
Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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