(See Java 101: Inheritance in Java, Part 2 for more about working with superclasses.) How to break a subclass: An example To understand this problem, suppose you’ve purchased a library of Java ...

Why does Java's standard class library contain empty interfaces like Cloneable and Serializable? Find out why in this sixth installment in the "Object-oriented language basics" series. You'll also ...

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 ...