parent

Returns the path immediately enclosing this path.

This returns null if this has no parent. That includes these paths:

• The file system root (/)

• The identity relative path (.)

• A Windows volume root (like C:\)

• A Windows Universal Naming Convention (UNC) root path (\\server)

• A reference to the current working directory on a Windows volume (C:).

• A series of relative paths (like .. and ../..).