Gang of Four — Desing Patterns
Once upon a realm where software did reside,
A group of patterns emerged, side by side.
The Gang of Four they were, wise and renowned,
With design patterns, a kingdom to astound.
In the castle of code, they began their quest,
To solve recurring problems, they knew best.
Creational patterns, like a magical birth,
Creating objects, breathing life on this earth.
Singleton, the steadfast, stood tall and strong,
A lone instance, enduring all along.
Prototype, shape-shifter, morphing with grace,
Cloning objects, a versatile embrace.
Builder, the architect, skillful and grand,
Constructing complex objects, hand in hand.
Factory Method, creator of great might,
Creating objects, hiding the details from sight.
Structural patterns, bridging worlds apart,
Composite, uniting, forming a work of art.
Decorator, adorning with flair and delight,
Adding behavior, enhancing with might.
Facade, the simplifier, easing the way,
A unified interface, leading astray.
Adapter, harmonizing, connecting diverse,
Uniting interfaces, a blessing immerse.
Behavioral patterns, with stories untold,
Observer, watching, events to behold.
Iterator, traversing with a gentle touch,
Effortlessly journeying, without a crutch.
Command, the director, issuing command,
Decoupling requests, a master plan.
Strategy, the tactician, flexible and true,
Switching behaviors, adapting like dew.
These patterns, a tapestry woven in code,
A storybook of solutions, forever bestowed.
In realms of software, they guide and inspire,
Creating harmony, like an angelic choir.
So, let us embrace these patterns so rare,
The Gang of Four’s legacy, beyond compare.
For in their stories, a lesson we find,
Design elegance, in every line.
