What you’ll learn in this Java tutorial. The four types of Java polymorphism; ... Listing 5 presents a class hierarchy consisting of Superclass and Subclass, which extends Superclass.

This is an example of Java inheritance with method overriding. First, we extend the Animal class to create a new Cat class. Next, we override the Animal class’s emitSound() method to get the ...

To explicitly extend a class, add the EXTENDS clause shown below: class y extends x; endclass; In this case, class Y extends the class X. Alternatively, Y is a subclass of X, and X is the parent class ...

Example: "Vehicle.java" is the superclass, "VehicleDemo.java" is the subclass, and "Car.java" is the subclass of the subclass. 0 stars 0 forks Branches Tags Activity Star ...

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 ...