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Object-Oriented Programming (OOP)

Practice Object-Oriented Programming (OOP) MCQs for Pakistan exams (CSS, FPSC, PPSC, NTS) — 50 practice questions with answers and explanations.

The concept in which a special method automatically invoked when an object is destroyed, used to release resources is best known as which of these terms?
Identify the correct definition of Destructor.
What term describes the following? a class member that belongs to the class itself rather than to any individual object instance.
In computer science, Static member refers to which of the following?
Select the correct name for: a keyword that controls the visibility and accessibility of a class's members, such as public or private.
Which statement correctly explains Access modifier?
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?
What is Composition primarily used for?
The following statement describes a specific concept. What is it called? a relationship between two separate classes that establishes a connection through their objects.
Select the accurate description of Association.
Which term refers to a mechanism where the method to be executed is determined at runtime rather than at compile time?
What does Dynamic binding refer to?
What is the name for a mechanism where the method to be executed is determined at compile time based on the object's declared type?
Which of the following best describes Static binding?
Identify the correct concept described as: a variable defined in a class for which each object of that class maintains its own separate copy.
Instance variable is best defined as which of the following?
Choose the correct description of Singleton pattern.
Which of the following best names the concept in which the process by which objects communicate with one another by invoking each other's methods?
What is the function or purpose of Message passing?
The concept in which a keyword used in a subclass to refer to members or methods of its immediate parent class is best known as which of these terms?

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