Mastering Java: The Ultimate Quiz for 'Thinking in Java

Question: 1 / 510

How does Java handle generic types internally after type erasure?

By treating them as specific, bounded types

By checking their types at runtime

By treating them as Object

Java handles generic types by erasing their type parameters during compilation and treating them as the non-generic type Object. This means that the generic type is essentially converted to a non-generic type and all references to its type parameters are replaced with the type Object. This is why option C is the correct answer.

Option A is incorrect because Java does not treat generic types as specific, bounded types after type erasure. Instead, any type parameters or other constraints are removed.

Option B is incorrect because type checks are not performed at runtime for generic types. As mentioned earlier, during compilation, all references to type parameters are replaced with the type Object.

Option D is incorrect because Java does not dynamically determine the type of generic types after type erasure. Instead, it is already predetermined during compilation that the generic type will be treated as Object.

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