Specifications

Sun Services
Java™ Programming Language Module 7, slide 31 of 44
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. Sun Services, Revision F
The Solution
An abstract class models a class of objects in which the full
implementation is not known but is supplied by the concrete
subclasses.
RiverBarge
Vehicle
+ calcFuelEfficiency () : double
+
calcTripDistance () : double
Truck
+calcFuelEfficiency() : double
+calcTripDistance() : double
+Truck(maxLoad : double)
{abstract}
«constructors»
«methods»
+calcFuelEfficiency() : double
+calcTripDistance() : double
+RiverBarge(maxLoad : double)
«constructors»
«methods»