Learn what the factory method pattern is, how to implement it, and how it can improve your object-oriented programming skills and code quality. Agree & Join LinkedIn ...

This project implements various design patterns in a social network system, including Observer, Factory Method, Strategy, and Composite. It features UML class diagrams, source codes, and example ...

通常 class B 也會是一個 superclass，或者甚至只是一個 interface 繼承 class A 的 subclass S 可以 override factory method M（當 M 在 class A 是 abstract method 時則 S「必須」implement M） Subclass S 的 factory method M 的 return type 可以是 ...