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      Question

      What is the main purpose of an interface in

      OOP?
      A To provide a complete implementation of a class. Correct Answer Incorrect Answer
      B To define a contract for classes, specifying methods that implementing classes must provide. Correct Answer Incorrect Answer
      C To allow multiple inheritance in languages that don't support it directly. Correct Answer Incorrect Answer
      D To hide all data members from external access. Correct Answer Incorrect Answer
      E To create objects without using a constructor. Correct Answer Incorrect Answer

      Solution

      To define a contract for classes, specifying methods that implementing classes must provide.

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