Answer
See the explanation
Work Step by Step
We draw the classes Truck and Automobile as generalizations of the class Vehicle.
See figure.
The diagram shows a generalization (inheritance) relationship: Vehicle, Truck, Automobile
The classes in the diagram are:
Vehicle → This is the base class (also called the superclass or parent class).
Truck and Automobile → These are derived classes (also called subclasses or child classes).
The meaning of the generalization relationship is:
The arrow from each subclass to the superclass represents inheritance:
- Both Truck and Automobile inherit attributes and methods from Vehicle.
- This means they share common properties and behaviors defined in Vehicle, but can also have unique characteristics of their own.