Nick Hodges – I’m currently reading Head First Design Patterns, and am finding it very useful and educational. One problem, though – it’s all in Java. So I thought that as part of the exercises, I’d translate the code to Delphi. And also as part of my learning process, I thought it would be a good idea to post an article about each of the patterns. I also encourage you to buy the book and read it for yourself. The first real pattern that the book shows is the Observer Pattern. You should use the observer pattern when you have one object that notifies other objects when ...
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Jørn E. Angeltveit