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.

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What type of pattern is demonstrated with adapters in Java generics?

  1. Singleton Pattern

  2. Adapter Pattern

  3. Factory Method Pattern

  4. Observer Pattern

The correct answer is: Adapter Pattern

The adapter pattern is a type of design pattern that allows the interface of an existing class to be used by another class. This pattern is used in Java generics to adapt a class that does not implement a particular generic interface, to be able to use the interface. The other options are incorrect because - The singleton pattern ensures that only one instance of a class is created and provides a global access point to it. It is not related to Java generics or adapters. - The factory method pattern is used to create objects without specifying the exact class of object that will be created. It is also not directly related to Java generics or adapters. - The observer pattern is used to establish a one-to-many relationship between objects so that when one object changes, all its dependents are notified and updated automatically. It is also not directly related to Java generics or adapters.