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

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Prepare for your Java exam with our ultimate quiz based on 'Thinking in Java'. Engage with expertly crafted questions that enhance your learning process. Perfect for Java enthusiasts looking to solidify their knowledge!

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What is essential for achieving implementation hiding in OOP?

Private methods
Static methods
Public methods
Access specifiers

The correct answer is: Access specifiers

In order to achieve implementation hiding in Object-Oriented Programming (OOP), it is essential to use access specifiers. Access specifiers allow for the control of visibility to other classes and objects, allowing for proper encapsulation and data hiding. Private, public, and protected are all examples of access specifiers. Private methods alone do not guarantee implementation hiding as they can still be accessed within the class. Similarly, static methods also do not ensure implementation hiding as they can be accessed without an instance of an object. Public methods, while necessary for object communication, do not provide proper implementation hiding as they can be accessed by any other class or object in the program. Therefore, access specifiers are the essential factor in achieving implementation hiding in OOP.