The first half of this introduction to Java inheritance teaches you how to use the extends keyword to derive a child class from a parent class, invoke parent class constructors and methods ...

When you are considering using inheritance, ask yourself whether the subclass really is a more specialized version of the superclass. In this case, a car is a type of vehicle, so the inheritance ...

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 ...