The following text was written to the standard output stream when the WordList.java program was executed from IntelliJ.
>>> display Neeraj Bipin Hero Ashutosh Kaushal Hi Bye Anju Anuj Di >>> swap 1 2 >>> display Bipin Neeraj Hero Ashutosh Kaushal Hi Bye Anju Anuj Di >>> swap 3 2 >>> display Bipin Hero Neeraj Ashutosh Kaushal Hi Bye Anju Anuj Di >>> add first daniel >>> display daniel Bipin Hero Neeraj Ashutosh Kaushal Hi Bye Anju Anuj Di null >>>