As an example, Figure 1 shows car and truck ... vehicle categories Categories are described by classes. Java supports single inheritance through class extension, in which one class directly ...

Download the source code for example applications ... tasks in the context of your Java classes. First, let’s consider the basic rules and mechanisms for Object inheritance.

Java's open inheritance model can feel like an open invitation to unintended extensions. The problem becomes especially poignant when a switch statement or a nesting of if statements assumes that a ...