According to GoF, Iterator Pattern is used “to access the elements of an aggregate object sequentially without exposing its underlying implementation”. The Iterator pattern is…

An Interpreter Pattern says that “to define a representation of grammar of a given language, along with an interpreter that uses this representation to interpret…

A Command Pattern says that “encapsulate a request under an object as a command and pass it to invoker object. Invoker object looks for the…

In chain of responsibility, sender sends a request to a chain of objects. The request can be handled by any object in the chain. A…

Behavioral design patterns are concerned with the interaction and responsibility of objects. In these design patterns,the interaction between the objects should be in such a…