June 2018
Intermediate to advanced
280 pages
7h 46m
English
Content preview from Design Patterns and Best Practices in Java
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Generalization
Inheritance is also called an is-a relationship because the class inherited from another class can be used as the superclass.
When a class represents the shared characteristics of more than one class, it is called a generalization; for example, Vehicle is a generalization of Bike, Car, and Truck. Similarly, when a class represents a special instance of a general class, it is called a specialization, so a Car is a specialization of Vehicle, as shown in the following diagram:
In UML terminology, the relation to describe inheritance is called Generalization.
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