"I sort of understand classes and instances, but I don't really get the true benefits of object-oriented ...

Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof(). Although Java lacks a true sizeof() equivalent, the Instrumentation interface ...

Q: How can I write a class such that I can create only five instances of that class? A: In both “Singletons Rule” and “Effective Object-Oriented Design,” I covered the Singleton design pattern, which ...