JavaDoc:http://java.sun.com/javase/6/docs/api/java/io/File.html
File canRead() Tests whether the application can read the file denoted by this abstract pathname.
File canWrite() Tests whether the application can modify the file denoted by this abstract pathname.
File compareTo?() Compares two abstract pathnames lexicographically.
File createNewFile?() Atomically creates a new, empty file named by this abstract pathname if and only if a file with this name does not yet exist.
File createTempFile() Creates an empty file in the default temporary-file directory, using the given prefix and suffix to generate its name.
File delete() Deletes the file or directory denoted by this abstract pathname.
File deleteOnExit?() Requests that the file or directory denoted by this abstract pathname be deleted when the virtual machine terminates.
File exists() Tests whether the file or directory denoted by this abstract pathname exists.
File getAbsoluteFile?() Returns the absolute form of this abstract pathname.
File getAbsolutePath?() Returns the absolute pathname string of this abstract pathname.
File getCanonicalFile?() Returns the canonical form of this abstract pathname.
File getCanonicalPath?() Returns the canonical pathname string of this abstract pathname.
File getName?() Returns the name of the file or directory denoted by this abstract pathname.
File getParent?() Returns the pathname string of this abstract pathname's parent, or null if this pathname does not name a parent directory.
File getParentFile?() Returns the abstract pathname of this abstract pathname's parent, or null if this pathname does not name a parent directory.
File getPath?() Converts this abstract pathname into a pathname string.
File isAbsolute?() Tests whether this abstract pathname is absolute.
File isDirectory?() Tests whether the file denoted by this abstract pathname is a directory.
File isFile() Tests whether the file denoted by this abstract pathname is a normal file.
File isHidden?() Tests whether the file named by this abstract pathname is a hidden file.
File lastModified() Returns the time that the file denoted by this abstract pathname was last modified.
File length?() Returns the length of the file denoted by this abstract pathname.
File list?() Returns an array of strings naming the files and directories in the directory denoted by this abstract pathname.
File listRoots?() List the available filesystem roots.
File mkdir?() Creates the directory named by this abstract pathname.
File mkdirs?() Creates the directory named by this abstract pathname, including any necessary but nonexistent parent directories.
File renameTo() Renames the file denoted by this abstract pathname.
File setLastModified?() Sets the last-modified time of the file or directory named by this abstract pathname.
File setReadOnly?() Marks the file or directory named by this abstract pathname so that only read operations are allowed.
File toURI?() Constructs a file: URI that represents this abstract pathname.
File toURL?() Converts this abstract pathname into a file: URL.\\
