static Private the FileSystem FileSystem.getFileSystem FS = (); // internet local file system the file system object
Private static enum PathStatus {INVALID, CHECKED}; // enumerated type is legitimate
File (File parent, String Child) // create a new File instance from a string of parents and children abstract pathname pathname. File (String pathname) // create a new File instance by the given pathname string into an abstract pathname. File (String parent, String Child) // create a new File strings from the parent pathname string and a child pathname instance. File (URI of the uri) // create a new instance of the given document file: URI into an abstract pathname.
After re-introduce some common methods
delete ()
delete a file or directory with this abstract pathname.
exists ()
to check whether a file or directory with the existence of this abstract pathname.
mkdir ()
is create a directory this abstract pathname.
getName ()
name of the file or directory returned by this abstract pathname.