The following text was written to the standard output stream when the ? program was executed from Netbeans.
/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -javaagent:/opt/intellij-idea-community/lib/idea_rt.jar=42457:/opt/intellij-idea-community/bin -Dfile.encoding=UTF-8 -classpath /home/vahir/IdeaProjects/CS1/out/production/CS1:/home/vahir/Desktop/SimplePainter.jar:/home/vahir/Desktop/SimpleComposer.jar:/home/vahir/Desktop/jfugue-4.0.3-with-musicxml.jar arraylistplay.WordList >>>display blue green yellow pink red orange purple white brown black gray gold silver violet navyblue >>>print first blue >>>print last navyblue >>>swap 1 15 >>>display navyblue green yellow pink red orange purple white brown black gray gold silver violet blue >>>add first red-orange >>>display red-orange navyblue green yellow pink red orange purple white brown black gray gold silver violet blue >>>help HELP - display menu of commands DISPLAY - display the list of words PRINT - print a word (FIRST; LAST; nth) SWAP - exchange two elements (nth; mth) ADD - add a word to the list EXIT - terminate execution of the program >>>exit Process finished with exit code 0