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

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Master your knowledge of Java programming with our immersive quiz based on 'Thinking in Java'. Test your skills with detailed questions and receive hints and explanations to enhance your learning. Get ready to ace your Java exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What does List<? super T> allow you to do?

Add objects of type T or its subtypes to the List
Only retrieve objects from the List
Ensure the list contains objects of type T only
Create a List of mixed object types including T

The correct answer is: Add objects of type T or its subtypes to the List

The List<? super T> syntax allows you to add objects of type T or its subtypes to the List. This means that you can add objects of type T, as well as any objects that extends or implements T, to the List. The other options are incorrect because B only allows for retrieval, C ensures the List only contains objects of type T, and D would create a List with mixed types, which is not what is allowed with List<? super T>.