Objects from Factory are accessed through?

Objects from Factory are accessed through?

• A. A specific concrete class name
• B. Direct constructor calls
• C. A common interface (not a specific concrete class name)
• D. Global interface

Answer: (C)

Accessing objects from a factory through a common interface keeps code flexible and decoupled from concrete implementations. The factory hides which exact class it creates and returns something that adheres to an interface the client knows. Because the client codes against that interface, any new or swapped implementations that implement the same interface can be used without touching the caller. If you relied on a concrete class name or called constructors directly, you’d couple your code to a specific implementation, making it harder to change or extend later. There isn’t a concept of a “global interface” here; the pattern centers on programming to a defined interface and letting the factory provide the actual object.

Accessing objects from a factory through a common interface keeps code flexible and decoupled from concrete implementations. The factory hides which exact class it creates and returns something that adheres to an interface the client knows. Because the client codes against that interface, any new or swapped implementations that implement the same interface can be used without touching the caller. If you relied on a concrete class name or called constructors directly, you’d couple your code to a specific implementation, making it harder to change or extend later. There isn’t a concept of a “global interface” here; the pattern centers on programming to a defined interface and letting the factory provide the actual object.