PF101 - Week 2 - Quiz #1

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

• Encapsulation

• Inheritance

• Polymorphism

• All of the above

What is the purpose of inheritance in OOP?

• To allow a class to inherit properties and methods from another class

• To ensure that all classes are independent of each other

• To change the behavior of a method at runtime

• To restrict access to an object's data

Which concept allows a method to perform different tasks based on the object that is invoking it?

• Encapsulation

• Polymorphism

• Inheritance

• Abstraction

What does the term "subclass" refer to in OOP?

• A class that is derived from another class

• A method within a class

• An instance of a class

• A type of interface

How does polymorphism improve code flexibility in OOP?

• By allowing methods to be overridden or overloaded to perform different tasks based on the object type

• By ensuring that all methods are private

• By enforcing a single method signature across all classes

• By preventing the creation of subclasses

Which principle of OOP helps in the implementation of code reusability?

• Inheritance

• Encapsulation

• Abstraction

• Polymorphism

What is the purpose of encapsulation in OOP?

• To hide the internal state of an object and require all interaction to be performed through an object's methods

• To allow multiple classes to share the same interface

• To create a new class based on an existing class

• To define a method that can be used by different classes

Which of the following best describes abstraction in OOP?

• Hiding complex implementation details and showing only the essential features of the object

• Creating a new class that inherits from an existing class

• Ensuring that all data members are private

• Allowing methods to have the same name but behave differently based on the object

What is the significance of interfaces in OOP?

• They define a contract that classes must follow without providing implementation

• They allow classes to inherit properties from multiple classes

• They restrict the access of methods to only certain classes

• They provide a way to implement polymorphism through method overloading

What is the meaning of IDE