Moderate

What refers to the externally observable structure of an OO program ?

Correct answer: B. Surface structure

  • A. Deep structure
  • B. Surface structure
  • C. Core structure
  • D. All of the mentioned

Explanation

The surface structure of an object-oriented program is its externally visible organization, such as classes, interfaces, and relationships. Deep or core structure refers to internal implementation details rather than the observable form.

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