What do you mean by dependency injection and how does it work?

1.	What do you mean by dependency injection and how does it work?
Answer» Dependency Injection or DI is a DESIGN pattern that implements inversion or change of control for resolving dependencies. It is a process through which OBJECTS define their dependencies. Transferring the task of creating objects to someone ELSE and using the dependency is CALLED dependency injection. It can be done in 2 ways: constructor-based DI and setter-based DI.

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