Jeff Friesen. Figure 1. A pair of inheritance hierarchies are rooted in the common vehicle category. Single inheritance and multiple inheritance. The example in Figure 1 illustrates single ...

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 ...

Twenty-three years ago, in his Design Principles and Design Patterns article, Robert "Uncle Bob" Martin boiled down the Liskov substitution principle to the idea that "derived classes should be ...