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19 interview questions on Object Oriented Programmingfor developers (2024)

Test your technical skills before an interview of Object Oriented Programming with 19 corrected questions. Beginner, Intermediate or Expert level.

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19 questions
Hard
7 votes1353 runs0 comment

Can we extend an abstract class in Java?

IT Architect
OOP
abstract
class
Eric Hostaleryat Dec 3, 2021
Medium
3 votes1303 runs1 comment
Hard
2 votes1425 runs0 comment
Easy
2 votes189 runs0 comment

Inheritance, polymorphism and encapsulation

IT Architect
OOP
inheritance
polymorphism
encapsulation
Monemat Nov 3, 2023
Hard
1 vote1374 runs1 comment

What is the default value of a field in a class in Java?

IT Architect
OOP
constructor
object
Eric Hostaleryat Dec 3, 2021
Hard
1 vote1348 runs0 comment

What are the public methods of the class `Person`?

IT Architect
OOP
methods
visibility
Eric Hostaleryat Dec 3, 2021
Medium
1 vote372 runs0 comment
Expert
0 vote1333 runs2 comments
Easy
0 vote1229 runs0 comment