Chapter 7. Objects and Classes
In this and following chapters, we examine the nature of objects and types of objects and how they interact with one another.
Classes are factories for objects. Once a class defines the kind of data it can hold and the operations it is capable of performing, a particular object can be made. For instance, “Ludwig” is an instance of the “person” class. Once instantiated (once a particular instance of a class has been brought into existence), the object often needs to relate to other objects similarly constructed in order to have a meaningful existence. Once the object can no longer fulfill the obligations of meaningful service to the organization of objects to which it belongs, it is taken out of service. Understanding ...
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