GoF (Gang of Four) Design Pattern
GOF (Gang of Four) design patterns refer to a set of 23 software design patterns that were first introduced in the book "Design Patterns: Elements of Reusable Object-Oriented Software" by…
Observer Design Pattern
The Observer pattern is a behavioral design pattern that defines a one-to-many dependency between objects. In this pattern, when the state of one object changes, all its dependents are notified…
Memento Design Pattern
The Memento Design Pattern is a behavioral design pattern that allows us to capture the internal state of an object at a particular time without violating the encapsulation principle. This…
Mediator Design Pattern
The Mediator Design Pattern is a behavioral design pattern that promotes loose coupling between objects by introducing a mediator object that acts as an intermediary between the objects. This pattern…
Iterator Design Pattern
The Iterator Design Pattern is a behavioral pattern that provides a way to access the elements of an aggregate object sequentially without exposing the underlying representation. The Iterator Design Pattern…
Interpreter Design Pattern
The Interpreter Design Pattern is a behavioral design pattern that is used to define a grammar for a language, and to provide a way to interpret and execute expressions in…
Command Design Pattern
The Command Design Pattern is a behavioral design pattern that allows the separation of the request for an action from the object that performs the action. This pattern encapsulates a…
Chain of Responsibility Design Pattern
The Chain of Responsibility (CoR) design pattern is a behavioral pattern that is used to handle requests by passing them through a chain of objects until one of them handles…
Arrow Operator in Java
In Java, the arrow operator "->" is a relatively new addition that was introduced in Java 8 as part of the lambda expressions feature. It is used to separate the…
Proxy Design Pattern
The Proxy Design Pattern is a design pattern in Java that is used to provide a surrogate or placeholder for another object to control access to it. The proxy acts…