Posts by Simpson Lyod

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…

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…

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…

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…

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…

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…

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…

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…

The Flyweight design pattern is a structural pattern that aims to reduce memory usage by sharing objects that have the same state. The idea is to create a pool of…