In Part 2, I’ll present a helpful way to learn the foundational design patterns presented by the Gang of Four authors, revisit the book’s Visitor pattern from a Java technology perspective ...

The Command pattern is one of the 23 design patterns introduced with the Gang of Four design patterns ... Rafael del Nero is a Java Champion and Oracle Ace, creator of the Java Challengers ...

We discuss some of the most common design ... factory class. The Singleton Pattern restricts the instantiation of a Class and ensures that only one instance of the class exists in the Java Virtual ...