TransformHub Software Testing Engineer Interview Questions and Answers

Oops concepts are the pillars of object-oriented programming in Java.

• Encapsulation: Hiding implementation details

• Inheritance: Reusing code and creating a hierarchy of classes

• Polymorphism: Multiple forms of a single object

• Abstraction: Simplifying complex systems

Dependency injection is a design pattern used in Spring MVC to inject dependencies into objects at runtime.

• Dependency injection is used to reduce coupling between classes

• Spring MVC uses annotations like @Autowired and @Qualifier to inject dependencies

• Dependency injection can be done through constructor injection, setter injection, or field injection

• Example: @Autowired private UserService userService;

• Example: @Qualifier...read more