Object-Oriented Programming MCQs with Answers

What role does a constructor play in a Java class?

• A.It initializes an object when it is created
• B.It destroys an object when it is no longer needed
• C.It defines the return type of a method
• D.It imports external packages into the class

An overloaded function in programming is a collection of _ that share the same identifier but differ in parameters.

• A.Functions
• B.Variables
• C.Classes
• D.Objects

What are member functions in C++ commonly referred to as?

• A.Methods
• B.Functions
• C.Procedures
• D.Subroutines

Which of the following is true about interfaces in Java programming?

• A.They can have abstract methods and default methods
• B.They can be instantiated directly using the new keyword
• C.They can contain only abstract methods and no concrete methods
• D.They cannot have any method implementations at all

What is the term used to describe the relationship between a subclass and its superclass?

• A.Abstraction
• B.Encapsulation
• C.Polymorphism
• D.Inheritance

In computer terminology, what is another term for 'Attributes'?

• A.Entities
• B.Methods
• C.Properties
• D.Functions

Function overloading in programming languages is an example of which concept?

• A.Inheritance
• B.Polymorphism
• C.Encapsulation
• D.Abstraction