Java Quiz Unit 1

Name

Roll Number

Section

• CSE Core Section A
• B.tech M.tech Integrated CSE

What is the main advantage of Object-Oriented Programming (OOP)?

• Code reusability
• Faster execution
• Memory efficiency
• Stronger security

Which OOP concept allows a class to be derived from another class?

• Abstraction
• Encapsulation
• Inheritance
• Polymorphism

What is encapsulation in OOP?

• Hiding the implementation details
• Allowing direct access to variables
• Using only functions
• Writing code in a single file

Which of the following best defines polymorphism?

• Multiple methods with the same name but different parameters
• Restricting access to class members
• Creating an object of a class
• Writing multiple classes in a program

What is the primary purpose of abstraction in OOP?

• Hiding complex implementation details
• Reducing execution time
• Increasing memory usage
• Making variables private

In Java, what is a class?

• A blueprint for objects
• A function
• A variable
• A data type

Which of the following is NOT a benefit of OOP?

• Code reusability
• Improved security
• Faster execution
• Easier maintenance