Java OOP Quiz

What does OOP stand for?

• Object-Oriented Protocol

• Object-Oriented Process

• Object-Optimized Programming

• Object-Oriented Programming

Which of the following is a key advantage of OOP?

• Faster execution

• More complex code

• Less reusable code

• Increased redundancy

What principle does OOP help to maintain in code?

• Don't Repeat Yourself (DRY)

• Keep It Simple, Stupid (KISS)

• Single Responsibility Principle (SRP)

• Open/Closed Principle

In OOP, what is a class?

• A type of variable

• An instance of an object

• A method of execution

• A template for objects

What is an object in OOP?

• A collection of classes

• A type of method

• An instance of a class

• A programming language

Which of the following is NOT a feature of OOP?

• Polymorphism

• Inheritance

• Encapsulation

• Compilation

What does encapsulation refer to in OOP?

• Hiding the internal state of an object

• Creating multiple instances of a class

• Inheriting properties from another class

• Overriding methods in subclasses

Which keyword is used to create a class in Java?

• class

• create

• define

• object

What is the purpose of constructors in a class?

• To define methods

• To initialize objects

• To create variables

• To destroy objects

What does inheritance allow in OOP?

• Reusing code from a parent class

• Defining multiple classes with the same name

• Hiding data from other classes

• Creating new classes without methods