Mastering Java: The Ultimate Quiz for 'Thinking in Java' 2025 - Free Java Programming Practice Questions and Study Guide

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How can a generic class ensure type safety across different method calls?

By using raw types

By using bounded wildcards

A generic class can ensure type safety across different method calls by using bounded wildcards. This allows the class to specify a range of possible types that can be used as the generic type parameter, ensuring that only compatible types can be used. Using raw types and restricting to a specific type such as String do not provide the same level of flexibility and can potentially introduce type safety issues. Option D, stating that type safety cannot be ensured in this scenario, is incorrect as bounded wildcards specifically address this issue.

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By restricting to a specific type such as String

Type safety cannot be ensured in this scenario

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