Dependency Injection (DI)
Dependency Injection is a software design pattern that is used to implement the Inversion of Control (IOC) in software engineering. The purpose of dependency injection is to separate the creation and resolution of dependencies from the class that requires those dependencies. In other words, instead of creating and managing the objects it needs directly, a class will receive them from an external source.
The benefit of dependency injection is that it makes code more modular, flexible, and testable. By decoupling the dependencies, a class becomes more focused on its own responsibilities, and it becomes easier to replace dependencies or modify behavior without affecting the rest of the system.
There are several ways to implement dependency injection, such as constructor injection, setter injection, and interface injection. Dependency injection can be implemented manually or through a framework or container that manages the dependencies and their lifecycles.
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