Consider a simple problem domain for which we need to calculate the area of various shapes ... use inheritance and apply the rules of polymorphism to your code. To write SOLID code, and properly ...

We will focus on the relationship between polymorphism and Java inheritance ... The purpose of using polymorphism is to decouple the client class from the implementation code.

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 ...

Here's how it works. Use sealed classes in Java to control your inheritance Need to limit the number of possible subclasses in your codebase? Here comes Java's sealed classes to your rescue. Advanced ...