Object-oriented programming · interview question
Which of the following statements about encapsulation is true?
Multiple choiceMediumchapter-3-curatedpremiumoopimmutability-basics
Answer and explanation
Correct answer
B. Encapsulation helps in hiding the internal state of an object.
Why
Encapsulation refers to hiding the internal state and requiring all interaction to occur through an object's methods, which helps in maintaining control over the data and protecting it from outside interference and misuse.
Test yourself on Object-oriented programming
A free test with instant, explained results. No account needed.
More Object-oriented programming questions
- Why does declaring a method as 'final' in a superclass change runtime behavior?
- Why might a developer choose to use a 'restock' method rather than a public setter for inventory?
- How do unmodifiable views differ from defensive copies in protecting internal collections?
- In an e-commerce application, what is the advantage of using a 'processOrder' method in a Product class?
- Which statement is true about interfaces in Java?
- Why are public mutable fields risky in a store model?