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

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Dive into the depths of Java with our quiz based on "Thinking in Java, Fourth Edition" by Bruce Eckel. Test your knowledge, solidify concepts, and prepare for certification with challenging questions and insightful feedback.

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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How does Java achieve type erasure with generics?

By removing all type parameters at runtime
By converting all objects to type Object
By using dynamic type checking
By subclassing the generic type

The correct answer is: By removing all type parameters at runtime

Unlike static-typing languages such as C++, Java does not include generic type information in its runtime representation of objects. Therefore, at runtime, all generic types are replaced with their non-generic types, also known as type erasure. This allows Java to maintain backward compatibility with older versions of the language and reduce the amount of runtime overhead. Options B, C, and D are incorrect because they do not accurately describe how Java achieves type erasure with generics.