How to get just the parent directory name of a specific file
Use File's getParentFile() method and String.lastIndexOf() to retrieve just the immediate parent directory.
Mark's comment is a better solution thanlastIndexOf():
file.getParentFile().getName();These solutions only works if the file has a parent file (e.g., created via one of the file constructors taking a parent File). When getParentFile() is null you'll need to resort to using lastIndexOf, or use something like Apache Commons' FileNameUtils.getFullPath():
FilenameUtils.getFullPathNoEndSeparator(file.getAbsolutePath());=> C:/aaa/bbb/ccc/dddThere are several variants to retain/drop the prefix and trailing separator. You can either use the same FilenameUtils class to grab the name from the result, use lastIndexOf, etc.