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Java: In Java, which comparison about Type Erasure is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about Type Erasure is accurate?

  1. There is no practical difference in behavior, performance, or API design when Type Erasure is involved.
  2. The oldest option related to Type Erasure is always the right production choice regardless of context.
  3. Differences around Type Erasure are mostly cosmetic, so correctness and maintainability do not change.
  4. The compiler checks generic types, but the runtime mostly sees the erased raw form unless extra metadata is carried separately.

Hint

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

Answer and rationale

Correct answer: D. The compiler checks generic types, but the runtime mostly sees the erased raw form unless extra metadata is carried separately.

The compiler checks generic types, but the runtime mostly sees the erased raw form unless extra metadata is carried separately. This is the comparison that usually separates memorization from understanding.

Track: Java