Kotlin

The Singleton pattern ensures a class has only one instance and provides a global point of access to it. This is useful for managing resources like database connections or configuration settings where multiple instances would be wasteful or problematic. In Kotlin, we achieve this using an object declaration. objects …

Read More

The Prototype pattern creates new objects from an existing object, a “prototype,” rather than using a traditional constructor. This is useful when creating objects is expensive, or when the desired object configuration is complex and better determined by modifying an existing instance. The code defines an …

Read More

The Factory Method pattern is a creational design pattern that provides an interface for creating objects, but lets subclasses decide which class to instantiate. It promotes loose coupling by abstracting the object creation logic away from the client code.

The Kotlin code defines an abstract Product class representing …

Read More

The Builder pattern is a creational design pattern that lets you construct complex objects step-by-step. It allows for creating different representations of an object using the same construction process. This is particularly useful when an object has many optional parameters.

The Kotlin code implements the Builder …

Read More

The Abstract Factory pattern provides an interface for creating families of related or dependent objects without specifying their concrete classes. It’s a “factory of factories,” allowing you to switch between different “look and feels” or configurations easily.

This Kotlin example defines …

Read More

The Peer-to-Peer (P2P) pattern enables direct communication and data exchange between independent entities (peers) without relying on a central server. Each peer acts as both client and server. This Kotlin example uses Kotlin Coroutines and Channels to simulate a simple P2P network. Peers broadcast messages to each …

Read More