Since reading the GOF Design Patterns book in 1994, David has been an active proponent of design patterns, and has used and implemented design patterns in Smalltalk, C++, and Java.

A tutorial highlighting the various design patterns in Java. Learn about the benefits and different types of design patterns.

At work, I regularly have multiple representations of the same data, which I often have little control over. I have to take an external data structure and convert it to our version of the same ...