Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Want to excel in Java? Test your knowledge with our ultimate quiz based on 'Thinking in Java'. Engage with multiple-choice questions and in-depth explanations. Boost your understanding and prepare for your exam with confidence.

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What is the result of passing a List<Apple> to a method accepting List<Fruit>?

  1. Compile-time error

  2. Runtime exception

  3. Warning for unchecked conversion

  4. The method executes without any issue

The correct answer is: Compile-time error

Passing a List<Apple> to a method accepting List<Fruit> would result in a compile-time error. This is because List<Apple> is a more specific type than List<Fruit>, so it cannot be implicitly converted. The option Runtime exception is incorrect because the error would be caught during the compilation process rather than at runtime. The option Warning for unchecked conversion is incorrect because there is no type conversion happening in this scenario. Lastly, the option The method executes without any issue is incorrect because the method would not be able to accept the List<Apple> as an argument, thus it would not execute.