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Class Attributes and this Keyword in OOP Quiz

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Questions and Answers

What is the purpose of the 'this' keyword in OOP?

Passing the current object as an argument
Creating new constructor
Declaring a static method (correct)
Accessing instance variables

How many objects can be created from a class in OOP?

10000 Max
Only 1
Unlimited (correct)
Less than 100

What is an object in object-oriented programming?

A type of loop
A function that returns a value
A variable that holds data
An instance of a class (correct)

Which keyword is used to create an instance of a class in most object-oriented programming languages?

New (C) Signup and view all the answers

What is the main purpose of a constructor in a class?

To initialize the instance variables of the class (B) Signup and view all the answers

Which of the following is an example of aggregation in object-oriented programming?

Having a class that contains references to other classes (A) Signup and view all the answers

What is an advantage of Object-Oriented Programming (OOP) that is not mentioned in the text?

Improved security measures (B) Signup and view all the answers

Which of the following is NOT a feature of Object-Oriented Programming (OOP)?

Immutability (B) Signup and view all the answers

In Object-Oriented Programming (OOP), if there is an abstract method in a class, what is the requirement?

Class must be an abstract class (D) Signup and view all the answers

Which best describes an object in the context of Object-Oriented Programming (OOP)?

Instance of a class. (A) Signup and view all the answers

How many types of access specifiers are provided in Object-Oriented Programming (OOP) using TypeScript?

3 (C) Signup and view all the answers

Which of the following is an incorrect statement following the Object-Oriented Programming (OOP) concept?

Hospital extends Doctor. (A) Signup and view all the answers

What is the purpose of object-oriented programming?

To create applications using objects and their interactions (B) Signup and view all the answers

Can classes and their relations be modeled in UML (Unified Modeling Language)?

Yes, UML does not support class modeling (B) Signup and view all the answers

Is Object-oriented programming designed to make code harder to read and maintain?

No, it is intended to make code easier to read and maintain (A) Signup and view all the answers

What is polymorphism in object-oriented programming?

The ability of data to take on multiple forms (C) Signup and view all the answers

Are objects the only data types used in TypeScript, Java, or C++?

No, these languages support multiple data types beyond objects (B) Signup and view all the answers

Does object-oriented programming discourage code reusability?

No, OOP encourages creating reusable code (B) Signup and view all the answers

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