Java Programming Quiz

Which programming paradigm is based on the concept of objects?

• Procedural Programming

• Object-Oriented Programming

• Functional Programming

• Declarative Programming

What does 'Inheritance' refer to in OOP?

• The ability of an object to take on properties from other objects

• The hiding of data

• The ability to change code at runtime

• Combining methods to form a new method

Which of the following is not a concept of OOP?

• Abstraction

• Encapsulation

• Variable Declaration

• Polymorphism

Which term describes a real-world entity that has state and behavior in OOP?

• Class

• Function

• Structure

• Object

What does Java being 'Architecture-Neutral' imply?

• It can only run on specific hardware

• It can run on any hardware and operating system

• It requires specific installations

• It is outdated

Which concept in Java allows different classes to be treated as instances of the same class through a common interface?

• Abstraction

• Polymorphism

• Encapsulation

• Inheritance

What is the role of 'Encapsulation' in OOP?

• It allows hiding of data and implementation details

• It allows multiple objects to inherit from a single parent

• It allows method Overloading

• It combines objects into a single unit

What does it mean for Java to be 'Multithreaded'?

• It can process only one thing at a time

• It can run multiple threads simultaneously

• It can run on multiple architectures

• It can compile without errors

What is a class in object-oriented programming?

• A physical entity

• A blueprint or prototype for objects

• A type of database

• A programming language

What are instances of a class called?

• Elements

• Objects

• Attributes

• Methods