Exercises (Sections G.1–G.5)
G.5 Discuss the ways in which inheritance promotes software reuse, saves time during program development and helps prevent errors.
G.6 Draw an inheritance hierarchy for students at a university similar to the hierarchy shown in Fig. G.2. Use Student
as the superclass of the hierarchy, then extend Student
with classes UndergraduateStudent
and GraduateStudent
. Continue to extend the hierarchy as deep (i.e., as many levels) as possible. For example, Freshman
, Sophomore
, Junior
and Senior
might extend UndergraduateStudent
, and DoctoralStudent
and MastersStudent
might be subclasses of GraduateStudent
. After drawing the hierarchy, discuss the relationships that exist between the classes. [Note: You do not need to write ...
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