What is Inversion of Control (IoC) in Spring?
A) A design principle where the control flow of a program is inverted
B) A method to control the version of the software
C) A way to increase the performance of a Java application
D) A tool for managing databases
Answer:
A) A design principle where the control flow of a program is inverted
Explanation:
Inversion of Control (IoC) is a design principle in which the control of objects and the flow of a program are inverted compared to traditional programming. In the context of the Spring Framework, IoC means that the framework takes control of object creation and dependency management, rather than the application code.
This is typically achieved through Dependency Injection (DI), where objects are provided their dependencies rather than creating them internally. This makes the code more modular, easier to test, and more flexible since the dependencies can be swapped or modified without changing the code that uses them.
Reference links:
https://www.javaguides.net/p/spring-tutorial-beginners-to-expert.html