The first half of this tutorial introduced the basics of inheritance in Java. You learned how to use Java’s extends and super keywords to derive a child class from a parent class, invoke parent ...

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() ...

Java's open inheritance model can feel like an open invitation to unintended ... While there are workarounds -- for example, you could introduce a Factory class to generate transaction objects -- this ...