Which data structure encapsulates data and behavior?

Which data structure encapsulates data and behavior?

• A. Objects
• B. Arrays
• C. Functions
• D. Constants

Answer: (A)

Encapsulation bundles data and the operations that work on that data into a single unit. An object is the structure designed to do this: it stores state in its fields and defines behavior in its methods. For example, a BankAccount object might hold the balance and account holder name and provide deposit and withdraw methods to modify that balance. This pairing of data with related actions is what makes an object able to encapsulate both data and behavior. Arrays hold data but no behavior, functions provide behavior but don’t inherently carry state, and constants store values without associated operations.

Encapsulation bundles data and the operations that work on that data into a single unit. An object is the structure designed to do this: it stores state in its fields and defines behavior in its methods. For example, a BankAccount object might hold the balance and account holder name and provide deposit and withdraw methods to modify that balance. This pairing of data with related actions is what makes an object able to encapsulate both data and behavior.

Arrays hold data but no behavior, functions provide behavior but don’t inherently carry state, and constants store values without associated operations.