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Java: In Java, which comparison about Abstraction is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about Abstraction is accurate?

  1. Abstraction defines what a type promises, while encapsulation governs how the implementation protects its state.
  2. There is no practical difference in behavior, performance, or API design when Abstraction is involved.
  3. The oldest option related to Abstraction is always the right production choice regardless of context.
  4. Differences around Abstraction are mostly cosmetic, so correctness and maintainability do not change.

Hint

Focus on the behavior or tradeoff, not just the keyword.

Answer and rationale

Correct answer: A. Abstraction defines what a type promises, while encapsulation governs how the implementation protects its state.

Abstraction defines what a type promises, while encapsulation governs how the implementation protects its state. This is the comparison that usually separates memorization from understanding.

Track: Java