Java Interview Guide : 200+ Interview Questions and Answers - What is Encapsulation?

The video tutorial introduces encapsulation, a key concept in object-oriented programming, which involves hiding the implementation details of a class. Three approaches to encapsulation are discussed: direct access to class variables, using getters and setters, and encapsulating logic within methods. The tutorial emphasizes that the third approach, which abstracts operations into methods, offers the best encapsulation. This method allows changes in implementation without affecting external classes. The video concludes with a recommendation to practice encapsulation in programming.

How does encapsulation help in maintaining the integrity of a class's internal state?

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What are the three approaches to encapsulation discussed in the text, and which one is considered the best?

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