Jeff Friesen. Figure 1. A pair of inheritance hierarchies are rooted in the common vehicle category. Single inheritance and multiple inheritance. The example in Figure 1 illustrates single ...

Because you can extend at most one other class (recall from Part 1 that Java doesn’t support class-based multiple inheritance), you’re not forced to explicitly extend Object; otherwise, you ...

Java does enable the option to mark a class as final to eliminate the ability to perform inheritance complete, but that is often too heavy of a hammer to drop. Marking a class as final prevents all ...