Okay then.
Make a class students and think of what variables should be known about them(write these down and add reasoning for your choices)
Make a class studygroup which will hold a number of students(maximum of 10), again, adding whatever you feel is necessary with comments on why you chose them.
Finally, make a class school, which will hold the study groups. This school class should give us access to at least the following functions:
showStudyGroups - outputs the names of all the studygroups seperates by newlines.
showStudents(studyGroupName) - takes the name of a study group as argument and shows you all the students in that group.
Good luck.