The following text was written to the standard output stream when the NumberList.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 2 4 5 6 9 4 1 4 5 0 7 32 >>> print first 2 >>> print last 32 >>> print 3 5 >>> swap 5 7 >>> display 2 4 5 6 1 4 9 4 5 0 7 32 >>> add first 100 >>> display 100 2 4 5 6 1 4 9 4 5 0 7 32 >>> exit