Inheritance allows us to reuse the methods and other attributes of one class in a new class, which is very convenient. ... This is an example of Java inheritance with method overriding.

Polymorphism and Java inheritance. ... We use polymorphism all the time in the core Java classes. One very simple example is ... What if we wanted to reference an attribute or method from a Java ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...