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 ...

We will focus on the relationship between polymorphism and Java inheritance ... requires an inheritance or an interface implementation. You can see this in the example below, featuring Duke ...

Imagine you are an expert object-oriented Java developer who meticulously ... Sealed classes address precisely the type of inheritance control previously described. Here's how we can refactor the ...