Mash Virtual Interview Questions and Answers

Encapsulation is the process of hiding implementation details and exposing only necessary information.

• Encapsulation helps in achieving data abstraction and information hiding

• It allows for better control over data and prevents unauthorized access

• It promotes code reusability and reduces complexity

• Example: A class with private variables and public methods to access them

Data hiding is the practice of hiding implementation details of an object from the outside world.

• It is a technique used in object-oriented programming.

• It helps to protect the data from unauthorized access.

• It improves security and reduces coupling between objects.

• It is achieved by using access modifiers such as private, protected, and package-private.

• Example: Encapsulation in Java uses data hiding to protect the data of

Session state management refers to the process of managing user session data in web applications.

• Session state can be managed using cookies, URL rewriting, or server-side storage.

• Cookies are small text files stored on the client-side that contain session data.

• URL rewriting involves appending session IDs to URLs.

• Server-side storage can be used to store session data in a database or in-memory cache.

• Session state manageme...read more