In Visoko, Bosnia, hills were proclaimed to be the world’s oldest pyramids, older than Egypt’s. But decades of research reveal they are natural geological formations, not manmade structures. Despite ...

Define an interface for creating an object using the Factory Method Pattern, but let subclasses decide which class to instantiate. This creational design pattern lets a class defer instantiation to ...

Geologist Danny Hilman is on the verge of a major discovery – 120 kilometres south of Jakarta in Gunung Padang, sits an ancient arrangement of large stones atop a hill. Now evidence suggests that they ...

This repo features key design patterns with concise explanations and practical implementations to help you understand and apply software design principles.