Java org.apache.commons.io FileUtils fields, constructors, methods, implement or subclass

Introduction

In this page you can find the methods, fields and constructors for org.apache.commons.io FileUtils.

The text is from its open source code.

Subclass

org.apache.commons.io.FileUtils has subclasses.
Click this link to see all its subclasses.

Field

long	ONE_KB The number of bytes in a kilobyte.
long	ONE_MB The number of bytes in a megabyte.
long	ONE_GB The number of bytes in a gigabyte.
File[]	EMPTY_FILE_ARRAY An empty array of type `File`.

Constructor

	FileUtils() Instances should NOT be constructed in standard programming.

Method

String	byteCountToDisplaySize(long size) Returns a human-readable version of the file size, where the input represents a specific number of bytes.
Checksum	checksum(File file, Checksum checksum) Computes the checksum of a file using the specified checksum object.
long	checksumCRC32(File file) Computes the checksum of a file using the CRC32 checksum routine.
void	cleanDirectory(File directory) Cleans a directory without deleting it.
boolean	contentEquals(File file1, File file2) Compares the contents of two files to determine if they are equal or not.
File[]	convertFileCollectionToFileArray(Collection files) Converts a Collection containing java.io.File instanced into array representation.
void	copyDirectory(File srcDir, File destDir) Copies a whole directory to a new location preserving the file dates.
void	copyDirectory(File srcDir, File destDir, boolean preserveFileDate) Copies a whole directory to a new location.
void	copyDirectory(File srcDir, File destDir, FileFilter filter) Copies a filtered directory to a new location preserving the file dates.
void	copyDirectory(File srcDir, File destDir, FileFilter filter, boolean preserveFileDate) Copies a filtered directory to a new location.
void	copyDirectoryToDirectory(File srcDir, File destDir) Copies a directory to within another directory preserving the file dates.
void	copyFile(File srcFile, File destFile) Copies a file to a new location preserving the file date.
void	copyFile(File srcFile, File destFile, boolean preserveFileDate) Copies a file to a new location.
void	copyFileToDirectory(File srcFile, File destDir) Copies a file to a directory preserving the file date.
void	copyFileToDirectory(File srcFile, File destDir, boolean preserveFileDate) Copies a file to a directory optionally preserving the file date.
void	copyURLToFile(URL source, File destination) Copies bytes from the URL `source` to a file `destination`.
void	deleteDirectory(File directory) Deletes a directory recursively.
boolean	deleteQuietly(File file) Deletes a file, never throwing an exception.
void	forceDelete(File file) Deletes a file.
void	forceDeleteOnExit(File file) Schedules a file to be deleted when JVM exits.
void	forceMkdir(File directory) Makes a directory, including any necessary but nonexistent parent directories.
boolean	isFileNewer(File file, File reference) Tests if the specified `File` is newer than the reference `File`.
boolean	isFileNewer(File file, Date date) Tests if the specified `File` is newer than the specified `Date`.
boolean	isFileNewer(File file, long timeMillis) Tests if the specified `File` is newer than the specified time reference.
boolean	isFileOlder(File file, File reference) Tests if the specified `File` is older than the reference `File`.
boolean	isFileOlder(File file, Date date) Tests if the specified `File` is older than the specified `Date`.
boolean	isFileOlder(File file, long timeMillis) Tests if the specified `File` is older than the specified time reference.
Iterator	iterateFiles(File directory, IOFileFilter fileFilter, IOFileFilter dirFilter) Allows iteration over the files in given directory (and optionally its subdirectories).
Iterator	iterateFiles(File directory, String[] extensions, boolean recursive) Allows iteration over the files in a given directory (and optionally its subdirectories) which match an array of extensions.
LineIterator	lineIterator(File file, String encoding) Returns an Iterator for the lines in a `File`.
LineIterator	lineIterator(File file) Returns an Iterator for the lines in a `File` using the default encoding for the VM.
Collection	listFiles(File directory, IOFileFilter fileFilter, IOFileFilter dirFilter) Finds files within a given directory (and optionally its subdirectories).
Collection	listFiles(File directory, String[] extensions, boolean recursive) Finds files within a given directory (and optionally its subdirectories) which match an array of extensions.
void	moveDirectory(File srcDir, File destDir) Moves a directory.
void	moveDirectoryToDirectory(File src, File destDir, boolean createDestDir) Moves a directory to another directory.
void	moveFile(File srcFile, File destFile) Moves a file.
void	moveFileToDirectory(File srcFile, File destDir, boolean createDestDir) Moves a file to a directory.
void	moveToDirectory(File src, File destDir, boolean createDestDir) Moves a file or directory to the destination directory.
FileInputStream	openInputStream(File file) Opens a FileInputStream for the specified file, providing better error messages than simply calling `new FileInputStream(file)`.
FileOutputStream	openOutputStream(File file) Opens a FileOutputStream for the specified file, checking and creating the parent directory if it does not exist.
byte[]	readFileToByteArray(File file) Reads the contents of a file into a byte array.
String	readFileToString(File file) Reads the contents of a file into a String using the default encoding for the VM.
String	readFileToString(File file, String encoding) Reads the contents of a file into a String.
List	readLines(File file) Reads the contents of a file line by line to a List of Strings using the default encoding for the VM.
List	readLines(File file, String encoding) Reads the contents of a file line by line to a List of Strings.
long	sizeOfDirectory(File directory) Counts the size of a directory recursively (sum of the length of all files).
File	toFile(URL url) Convert from a `URL` to a `File`.
void	touch(File file) Implements the same behaviour as the "touch" utility on Unix.
URL[]	toURLs(File[] files) Converts each of an array of `File` to a `URL`.
boolean	waitFor(File file, int seconds) Waits for NFS to propagate a file creation, imposing a timeout.
void	writeByteArrayToFile(File file, byte[] data) Writes a byte array to a file creating the file if it does not exist.
void	writeLines(File file, Collection lines) Writes the `toString()` value of each item in a collection to the specified `File` line by line.
void	writeLines(File file, String encoding, Collection lines) Writes the `toString()` value of each item in a collection to the specified `File` line by line.
void	writeLines(File file, Collection lines, String lineEnding) Writes the `toString()` value of each item in a collection to the specified `File` line by line.
void	writeLines(File file, String encoding, Collection lines, String lineEnding) Writes the `toString()` value of each item in a collection to the specified `File` line by line.
void	writeStringToFile(File file, String data, String encoding) Writes a String to a file creating the file if it does not exist.
void	writeStringToFile(File file, String data) Writes a String to a file creating the file if it does not exist using the default encoding for the VM.