Reflection was essential to the advanced Java toolkit for years. Now it's being superseded by newer, safer options. Here's how to use MethodHandle and VarHandle to gain programmatic access to methods ...

So I'm at a client's site and we're discussing adding a new method to an existing class. One of the client's programmers said, "We should put the method in the base class and let all the derived ...

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

An abstract class is a template definition of methods and variables in a specific class, or category of objects. In programming, objects are units of code, and each object is made into a generic class ...

Editor's Note: This article is excerpted from Chapter 31, "Serviced Components," of Francesco Balena and Giuseppe Dimauro's book, Practical Guidelines and Best Practices for Microsoft Visual Basic and ...