oracle.adfnmc.java.io
Class File

java.lang.Object
  oracle.adfnmc.java.io.File

All Implemented Interfaces:

Comparable

public class File
extends java.lang.Object
implements Comparable

Field Summary

static java.lang.Class	CLASS_INSTANCE
static java.lang.String	fileSchemePrefix
static java.lang.String	pathSeparator
static char	pathSeparatorChar
static java.lang.String	separator
static char	separatorChar

Constructor Summary

File(java.lang.String pathname)

Method Summary

boolean	canRead()
boolean	canWrite()
int	compareTo(java.lang.Object obj) Answers the relative sort ordering of paths for the receiver and given argument.
boolean	createNewFile()
boolean	delete() Attempt to delete the file
boolean	equals(java.lang.Object obj)
boolean	exists() Does this file exist?
java.lang.String	getName()
java.lang.String	getParent() Answers the pathname of the parent of this File.
File	getParentFile() Answers a new File made from the pathname of the parent of this File.
java.lang.String	getPath()
boolean	isAbsolute()
boolean	isDirectory() Is this a directory?
boolean	isFile()
boolean	isHidden()
long	lastModified()
long	length() Returns the file's size, in bytes.
java.lang.String[]	list()
static File[]	listRoots()
boolean	mkdir() Make the directory specified by the path
boolean	mkdirs() Create all the directories needed for this File.

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CLASS_INSTANCE

public static final java.lang.Class CLASS_INSTANCE

separatorChar

public static final char separatorChar

See Also:

Constant Field Values

separator

public static final java.lang.String separator

See Also:

Constant Field Values

pathSeparatorChar

public static final char pathSeparatorChar

See Also:

Constant Field Values

pathSeparator

public static final java.lang.String pathSeparator

See Also:

Constant Field Values

fileSchemePrefix

public static final java.lang.String fileSchemePrefix

See Also:

Constant Field Values

Constructor Detail

File

public File(java.lang.String pathname)

Method Detail

exists

public boolean exists()

Does this file exist?

isDirectory

public boolean isDirectory()

Is this a directory?

isFile

public boolean isFile()

mkdir

public boolean mkdir()

Make the directory specified by the path

createNewFile

public boolean createNewFile()
                      throws java.io.IOException

Throws:

java.io.IOException

getPath

public java.lang.String getPath()

length

public long length()

Returns the file's size, in bytes.

Returns:

delete

public boolean delete()

Attempt to delete the file

getName

public java.lang.String getName()

list

public java.lang.String[] list()

compareTo

public int compareTo(java.lang.Object obj)

Answers the relative sort ordering of paths for the receiver and given argument. The ordering is platform dependent.

Specified by:

compareTo in interface Comparable

Parameters:

another - a File to compare the receiver to

Returns:

an int determined by comparing the two paths. The meaning is described in the Comparable interface.

See Also:

Comparable

getParent

public java.lang.String getParent()

Answers the pathname of the parent of this File. This is the path up to but not including the last name. null is returned when there is no parent.

Returns:

the parent name or null

isHidden

public boolean isHidden()

lastModified

public long lastModified()

canRead

public boolean canRead()

canWrite

public boolean canWrite()

mkdirs

public boolean mkdirs()

Create all the directories needed for this File. If the terminal directory already exists, answer false. If the directories were created successfully, answer true.

Returns:

true if the necessary directories were created, false otherwise.

listRoots

public static File[] listRoots()

getParentFile

public File getParentFile()

Answers a new File made from the pathname of the parent of this File. This is the path up to but not including the last name. null is returned when there is no parent.

Returns:

a new File representing parent or null

isAbsolute

public boolean isAbsolute()

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object