Object-Oriented Programming (OOP)
Which concept is defined as follows: a design principle in which a class is built using instances of other classes as components, forming a 'has-a' relationship?
Difficulty: Hard
About this MCQ
This Hard Object-Oriented Programming (OOP) question asks: Which concept is defined as follows: a design principle in which a class is built using instances of other classes as components, forming a 'has-a' relationship? The correct choice is C. Composition. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Object-Oriented Programming (OOP) items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Object-Oriented Programming (OOP) so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Object-Oriented Programming (OOP) item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. Association
Why not A: “Association” does not fit this question. The answer is Composition.
- B. Access modifier
Why not B: “Access modifier” does not fit this question. The answer is Composition.
- C. Composition ✓
- D. Instance variable
Why not D: “Instance variable” does not fit this question. The answer is Composition.
Correct answer
C. Composition
Explanation
Composition is the term that matches “Which concept is defined as follows: a design principle in which a class is built using instances of other classes as components, forming a 'has-a' relationship” (option C). Option A (Association) does not fit this question. Option B (Access modifier) does not fit this question. Option D (Instance variable) does not fit this question. For this Object-Oriented Programming (OOP) question, the accepted answer is Composition.
Source: Object-Oriented Programming (OOP) Official Reference Guide
Tags: computer science, oop, object-oriented programming, software design
Submitted by: MCQsHub Editorial
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