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

It’s a good idea to use an abstract class when ... based on the fact that multiple inheritance (extending more than one class) can cause code deadlocks. Java’s engineers decided to avoid ...

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 ...

It's not good enough to simply use inheritance and apply the rules of polymorphism to your code. To write SOLID code, and properly implement the Liskov substitution principle in Java, your code must ...