Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Uses of Class java.io.File - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Edition

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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.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.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 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 FileFilter.accept(File pathname)
          Tests whether or not the specified abstract pathname should be included in a pathname list.

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

FileWriter.FileWriter(File file)


FileInputStream.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.

FileReader.FileReader(File file)


FileOutputStream.FileOutputStream(File file)
          Creates a file output stream to write to the file represented by the specified File object.

RandomAccessFile.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.

File.File(File parent, String child)
          Creates a new File instance from a parent abstract pathname and a child pathname string.

Uses of File in java.util.jar

Constructors in java.util.jar with parameters of type File

JarFile.JarFile(File file)
Creates a new JarFile to read from the specified File object.

JarFile.JarFile(File file, boolean verify)
Creates a new JarFile to read from the specified File object.

Uses of File in java.util.zip

Constructors in java.util.zip with parameters of type File

ZipFile.ZipFile(File file)
Opens a ZIP file for reading given the specified File object.

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 filechooser is set to allow multi-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 filechooser is set to allow multi-selection.

void JFileChooser.setCurrentDirectory(File dir)
          Sets the current directory.

void JFileChooser.ensureFileIsVisible(File f)
          Make sure that the specified file is viewable, and not hidden.

String JFileChooser.getName(File f)
          Returns the file name.

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.JFileChooser(File currentDirectory)
Creates a JFileChooser using the given File as the path.

JFileChooser.JFileChooser(File currentDirectory, FileSystemView fsv)
Creates 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

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 String FileView.getName(File f)
          The name of the file.

abstract String FileView.getDescription(File f)
          A human readable description of the file.

abstract String FileView.getTypeDescription(File f)
          A human readable description of the type of the file.

abstract Icon FileView.getIcon(File f)
          The icon that represents this file in the JFileChooser.

abstract Boolean FileView.isTraversable(File f)
          Whether the directory is traversable or not.

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

protected boolean BasicDirectoryModel.lt(File a, File b)


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)

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.