October 2008
Beginner to intermediate
680 pages
16h 48m
English
Content preview from Beginning C# 2008 Objects: From Concept to Code
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10.9. Association Classes
We sometimes find ourselves in a situation in which we identify a field that is critical to our model, but doesn't seem to fit nicely into any one class. As an example, let's revisit the association "a Student attends a Section," as shown in Figure 10-39. (Note that we're using the "generic" many multiplicity symbol this time: a single asterisk [*] at each end of the association line.)
Figure 10.39. A many-to-many association between Student and Section
At the end of every semester, a student receives a letter grade for every section that he or she attended during that semester. We decide that the grade should be represented ...
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