The Composite Pattern is a structural design pattern used to compose objects into tree-like structures to represent part-whole hierarchies. It allows clients to treat individual objects and compositions of objects uniformly. The Composite Pattern is a structural design pattern that allows you to compose objects into tree-like structures to represent part-whole hierarchies. It lets clients …
The Bridge Pattern is a structural design pattern that aims to separate the abstraction (an interface or abstract class) from its implementation (the concrete classes that provide the functionality). This separation allows both the abstraction and the implementation to vary independently, making the design more flexible and adaptable to changes. The Bridge Pattern is a …
The Adapter Pattern in Java is a structural design pattern that allows incompatible interfaces to work together. It acts as a bridge between two incompatible interfaces by providing a wrapper or adapter class that converts the interface of a class into another interface that a client expects. Key Components Target: The interface that the client …
The Prototype Pattern in Java is used to create new objects by cloning an existing object, known as the prototype, rather than creating new instances from scratch. This pattern is useful when creating objects is costly or complex, and the new objects are similar to existing ones. Let’s implement a Java program that demonstrates creating …
The Builder Pattern is a creational design pattern used to construct complex objects step by step. It allows you to produce different types and representations of an object using the same construction process. This pattern is particularly useful when dealing with objects that have multiple attributes or configuration parameters, especially when some of them are …
The Abstract Factory Pattern is a creational design pattern that provides an interface for creating families of related or dependent objects without specifying their concrete classes. It’s useful when you need to create multiple families of related objects or ensure that objects created by a factory are compatible and work together seamlessly. Important Features Abstract …
The Factory Method Pattern is a creational design pattern that provides an interface for creating objects in a superclass but allows subclasses to alter the type of objects that will be created. It promotes loose coupling by deferring object instantiation to subclasses, making it ideal for scenarios where the exact type of object needed depends …
The Singleton pattern is a design pattern that ensures a class has only one instance and provides a global point of access to it. It’s commonly used when you need exactly one object to coordinate actions across a system, like a configuration manager or a database connection pool. Important Features Single Instance: Restricts instantiation to …
Creational design patterns focus on object creation mechanisms, providing flexible and efficient ways to instantiate objects while abstracting the creation process. They address challenges like managing object initialization, controlling instantiation, and ensuring systems are loosely coupled. These patterns are particularly useful when the creation process is complex, needs to be reusable, or requires specific configurations. …
Design patterns are categorized into three main types: Creational, Structural, and Behavioral. Each category addresses different aspects of software design problems and provides templates for solving these problems. Here’s an overview of all design patterns within these categories along with simple use cases. Creational Patterns Creational patterns deal with object creation mechanisms, enhancing flexibility and …
