A Motor Vehicle Class Program 7.4: A Motor Vehicle Class There's a lot of overlap between these two class definitions. OOP languages provide a mechanism for taking advantage of the overlap. This mechanism is inheritance. In this example you begin by defining a more general MotorVehicle class. class MotorVehicle { String make; String model; int year; int max_speed; int weight float price; int num_passengers; int num_wheels; } The MotorVehicle has all the characteristics shared by motorcycles and cars, but it leaves the number of wheels unspecified, and it doesn't have a num_doors variable since not all motor vehicles have doors. Copyright 1996 Elliotte Rusty Harold [e-mail] This Chapter Examples Home