In this case, a car is a type of vehicle ... Unlike some languages, such as C++, Java does not allow multiple inheritance with classes. You can use multiple inheritance with interfaces, however.

We will focus on the relationship between polymorphism and Java inheritance ... declare just one method that receives the generic List type. It’s possible to invoke specific methods in a ...

A method might accept a specific type and its subclasses, but you want to restrict usage to a select few implementations of your own design. Java's open inheritance model can feel like an open ...