This is a very convenient way to remove all doubles from a List in Java. The only prerequisite is that the elements in the list have proper equals and hashCode methods.

It work by using the constructor of a Set that takes a Collection as an argument.

I poured the snippet in a little program so can run it straight away.

This function tries to locate a file in a give folder (either single level, or in any sub folder). Returns the relative file and path, or FALSE if not found. Skips over "." and "..".

This function takes a directory, and a "folder" search parameter.
If it finds the directory (either in single level, or any sub folder) it will return the relative path of that folder. "FALSE" if not found. Skips over files and "." and ".." directories. Recursive by default.

Deletes all files and folders from a directory, including read-only and
hidden files and folders. DelAll starts in the directory you tell it,
removes all read-only and hidden attributes from all the files, removes
all of the subfolders and then all files therein. When DelAll is done,
you will be left in the directory from which you called DelAll. The
directory that you want cleaned will not be deleted.

Create a backup, restore a backup, delete a Backup from IIS

Checks to see if a file or folder exists
The fFile variable determines whether you're
looking for a File (True) or Folder(False)
The strName variable holds the fully qualified
path you're looking For

this function returns the aggregated size
of all files in a directory and its subdirectories

Retrieve information about a file

Check the attributes of a file or folde

Make a new directory