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Which of these is a mechanism for naming and visibility control of a class and its content?

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Which of these is a mechanism for naming and visibility control of a class and its content? (a) Object (b) Packages (c) Interfaces (d) None of the Mentioned. This question was addressed to me in an online quiz. I need to ask this question from Packages in section Interfaces & Packages of Java Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

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Right option is (b) Packages Easy explanation: Packages are both naming and visibility control mechanism. We can define a class inside a package which is not accessible by code outside the package.

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