The largest wealth transfer in history has begun. It doesn't mean you have to accept everything bequeathed to you. Here's ...

Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance. Topics Spotlight: New Thinking about Cloud ...

Find out why composition is the vital alternative to inheritance, and learn when and how to use it in your Java programs. Topics Spotlight: New Thinking about Cloud Computing ...

Java's open inheritance model can feel like an open invitation to ... unless you modify the TransactionProcessor class directly but that's a violation of Java's open-closed principle. What if you want ...

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 ...