Explanations “Top Java Quiz Questions”

What is the output of the code?

❌ A. true
✅ B. false
❌ C. The code will not compile because of line 2
❌ D. The code will not compile because of line 5
❌ E. The code will not compile because of line 7
❌ F. The code will not compile because of line 8

Explanation:
This code compiles and runs without issue, outputting false, so option B is the correct answer. The first declaration of isBlind() is as a default interface method, assumed public. The second declaration of isBlind() correctly overrides the default interface method. Finally, the newly created Owl instance may be automatically cast to a Nocturnal reference without an explicit cast, although adding it doesn’t break the code.

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466 viewsJun 11, 2021 at 11:08

What is the output of the code?

❌ A. true
✅ B. false
❌ C. The code will not compile because of line 2
❌ D. The code will not compile because of line 5
❌ E. The code will not compile because of line 7
❌ F. The code will not compile because of line 8

Explanation:
This code compiles and runs without issue, outputting false, so option B is the correct answer. The first declaration of isBlind() is as a default interface method, assumed public. The second declaration of isBlind() correctly overrides the default interface method. Finally, the newly created Owl instance may be automatically cast to a Nocturnal reference without an explicit cast, although adding it doesn’t break the code.

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