Life Cycle of Spring Bean, difference between java versions, difference between throw and throws, exception, abstraction, polymorphism and so on.

Question

Accepted Answer

Questions related to Spring Bean, Java versions, exception handling, and OOP concepts.

Spring Bean goes through various stages in its lifecycle such as instantiation, initialization, and destruction.
Java versions have differences in terms of features, performance, and security. For example, Java 8 introduced lambda expressions and streams.
throw is used to throw an exception explicitly while throws is used to declare the exceptions that a method may throw.
Exception handling is important to handle errors and prevent program crashes. Abstraction and polymorphism are OOP concepts that help in creating modular and flexible code.
Abstraction allows hiding implementation details and exposing only necessary information. Polymorphism allows objects of different classes to be treated as if they belong to the same class.

Popular interview questions of Software Development Engineer