How to memorize every Design Pattern Name (2024)

In the world of software development, design patterns stand as indispensable tools. They provide standardized solutions to recurring design problems, making code more maintainable, reusable, and comprehensible. Yet, committing the names and attributes of various design patterns to memory often presents a formidable challenge. To handle this obstacle, I offer a mnemonic approach that classifies design patterns into three distinct groups: Creational, Structural, and Behavioral. By forging connections between each pattern and a memorable keyword, the process of recollection and application becomes markedly more accessible and seamless.

Do I need to know each design pattern?

Absolutely No!

Nobody knows all the design patterns unless you are a college professor whose job is to teach these patterns to all the students.

But yes you should know few of them in detail and have a high level understanding others.

Why should I know each design pattern name?

This will be useful if you have some test where they might ask about design pattern names or their types.

So lets get into it right away!

Abstract Factory
Builder
Factory Method
Prototype
Singleton

Creational design patterns center on object creation mechanisms, striving to construct objects in a manner best suited to the situation at hand.

1. Abstract Factory: The Abstract Factory pattern grants the ability to create families of related objects without necessitating the specification of their concrete classes. Think of it as a factory responsible for creating other factories, each tailored to a specific set of objects.
2. Builder: In the realm of design patterns, the Builder pattern segregates the construction of intricate objects from their eventual representation, thereby enabling the same construction process to engender varying representations.
3. Factory: Employing the Factory pattern entails furnishing an interface for the creation of objects, yet delegates the task of determining the object type to its subclasses.
4. Prototype: The Prototype pattern involves the creation of novel objects via the duplication of existing objects, colloquially referred to as prototypes. Picture this as analogous to crafting duplicates of objects.
5. Singleton: The Singleton pattern orchestrates the existence of a singular class instance, ensuring its uniqueness and furnishing a global access point to this solitary instance.

Adapter
Bridge
Composite
Decorator
Flyweight
Facade
Proxy

Structural design patterns concern themselves with the arrangement of objects, orchestrating their composition into more comprehensive structures.

1. Adapter: The Adapter pattern endeavors to reconcile objects with disparate interfaces, facilitating their collaborative efforts by presenting a shared interface.
2. Bridge: With the Bridge pattern, the focus shifts towards isolating the abstraction from its implementation, thus allowing each to evolve independently of the other.
3. Composite: The Composite pattern affords the capability to compile objects into tree-like structures, embodying part-whole hierarchies. Notably, both individual objects and compositions are treated with uniformity.
4. Decorator: Within the realm of design patterns, the Decorator pattern involves the dynamic allocation of supplementary responsibilities to an object. This process is akin to enveloping gifts with successive layers of decorative paper.
5. Flyweight: By implementing the Flyweight pattern, memory consumption is substantially reduced through the sharing of data among akin objects.
6. Facade: The Facade pattern offers a simplified interface for intricate systems of classes, streamlining their usage and minimizing complexity.
7. Proxy: With the Proxy pattern, a surrogate or placeholder object assumes the mantle of controlling access to another object.

Mediator
Memento
Interpreter
Iterator
Chain of Responsibility
Command
State
Strategy
Observer
Template Method
Visitor

Behavioral design patterns pivot around object interaction and collaborative endeavors.

1. Mediator: The Mediator pattern introduces an intermediary object that coordinates communication between other objects, thereby fostering their collaboration without direct dependencies.
2. Memento: Elevating the Memento pattern unveils its role in capturing and restoring an object’s internal state, affording the capability to revert to prior states when necessary.
3. Iterator: The Iterator pattern furnishes a methodical approach to accessing elements within a collection, all the while concealing the underlying representation.
4. Interpreter: With the Interpreter pattern, a language for interpreting sentences and expressions is established, making it invaluable for scripting or language implementation.
5. Chain of Responsibility: The Chain of Responsibility pattern assembles a procession of processing objects, each of which can either manage a request or transmit it to the subsequent object in the sequence.
6. Command: Incorporating the Command pattern entails encapsulating a request within an object, endowing clients with request parameterization and enabling request queuing.
7. State: The State pattern facilitates the alteration of an object’s behavior in response to shifts in its internal state. Imagine this as analogous to a vending machine that adapts its actions based on the availability of items.
8. Strategy: With the Strategy pattern, an array of algorithms is defined, each encapsulated and interchangeable. This mirrors selecting a strategy for a particular game.
9. Observer: The Observer pattern establishes a reliance between objects, ensuring that when one undergoes a state change, all associated observers are promptly notified and updated.
10. Template Method: The Template Method pattern delineates an algorithm’s structure, enabling subclasses to override specific steps while preserving the overarching structure.
11. Visitor: The Visitor pattern extends object operations without necessitating modifications to their codebase. This translates to augmenting a class’s behavior without altering its fundamental code.

Conclusion

Design patterns hold a pivotal role in the landscape of software development, and a thorough grasp of their nuances can vastly amplify coding prowess. By adopting the mnemonic approach detailed above, the task of retaining and comprehending each design pattern becomes remarkably more straightforward. Whether you’re grappling with an intricate project or preparing for a rigorous interview, these mnemonics can serve as your invaluable compass, guiding you to the most appropriate design pattern for each scenario. Armed with the association of “Abaram becomes First President of State,” “ABDCFTP,” and “2MICS On TV,” you can confidently navigate the intricate maze of design patterns with finesse and precision.

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