Hey there, I have one class, my Course class that takes in user input and stores it in these ArrayLists, for the course title, credit and grade. Now the second part of this assignment is for me to "create collection of course, carry out adding, deleting, sorting,searching, and printing operations." What does this mean? I have no idea what my professor is asking, I have not been able to reach him as this is an online class with a very...vacant discussion board.