The following text was written to the standard output stream when the WordList.java program was executed from IntelliJ.
>>> HELP HELP - display a menu of commands DISPLAY - display the list of numbers PRINT - print a number (FIRST;LAST;nth) SWAP - exchange two elements (nth;mth) ADD - add a number to the list (FIRST;LAST) EXIT - terminate execution of the program >>> display hi bye hello goodbye what pizza monitor phone mouse keyboard >>> print first hi >>> print last keyboard >>> swap 5 7 >>> display hi bye hello goodbye monitor pizza what phone mouse keyboard >>> swap 1 10 >>> display keyboard bye hello goodbye monitor pizza what phone mouse hi >>> help HELP - display a menu of commands DISPLAY - display the list of numbers PRINT - print a number (FIRST;LAST;nth) SWAP - exchange two elements (nth;mth) ADD - add a number to the list (FIRST;LAST) EXIT - terminate execution of the program >>> add first dog >>> add last cat >>> shownumbers ### Unrecognizable command: shownumbers >>> display dog keyboard bye hello goodbye monitor pizza what phone mouse hi cat >>> exit