For my WISE

How does AssignCommand get its work done in so few lines?

Put toString in where it belongs ?

Add create course|student|professor
or drop

Drop a course?

Find an example of polymorphism in WISE - *other than* the command
dispatch table. (Or find two.)

Explain break and continue in WISE.java loop.

WISEList.java "should do this with a StringBuffer"

Draw the class hierarchy for the 18 WISE classes, showing Object as
the root.

AssignCommand
AvailableCommand
Course
CourseList
EnrollCommand
FileCommand
OutputCommand	
Professor	
ProfessorList	
Student		
StudentList		
TimeOfDay
TypeCommand
WISE
WISECommand
WISEException
WISEList
WISEObject

Explain how polymorphism cuts down on "if" - at least two specific
examples from WISE.