Object Oriented Concepts

What is inheritance in object-oriented programming?

• Inheritance is a mechanism in object-oriented programming where a class inherits the properties and behaviors of another class.

• Inheritance is a feature that allows objects to share common attributes and behaviors.

• Inheritance is a process of creating objects from classes.

• Inheritance is a way to create new classes from existing classes.

What is encapsulation in object-oriented programming?

• Encapsulation is the process of hiding the internal details and implementation of an object and providing a public interface to interact with the object.

• Encapsulation is the process of inheriting properties and methods from a parent object.

• Encapsulation is the process of combining multiple objects into a single object.

• Encapsulation is the process of exposing the internal details and implementation of an object to the public.

What is polymorphism in object-oriented programming?

• Ability of an object to take on multiple behaviors.

• Ability of an object to change its state.

• Ability of an object to inherit properties from another object.

• Ability of an object to take on many forms

What is abstraction in object-oriented programming?

• The process of hiding unnecessary details and exposing only essential features of an object.

• The process of modifying the internal state of an object.

• The process of combining multiple objects into a single object.

• The process of revealing unnecessary details and hiding essential features of an object.

What is a class diagram in object-oriented programming?

• A class diagram in object-oriented programming is a visual representation of the structure and relationships of classes in a system.

• A class diagram in object-oriented programming is a diagram that shows the flow of data between classes.

• A class diagram in object-oriented programming is a diagram that represents the behavior of objects in a system.

• A class diagram in object-oriented programming is a diagram that illustrates the sequence of method calls between classes.

What is the purpose of inheritance?

• To promote code reuse and modularity in object-oriented programming.

• To decrease code readability and hinder maintainability in object-oriented programming.

• To limit code reuse and increase redundancy in object-oriented programming.

• To increase code complexity and reduce modularity in object-oriented programming.

What are the benefits of encapsulation?

• Limited code reuse, decreased maintainability, increased vulnerability

• Data hiding, code modularity, improved security, better control over access to data, prevents unauthorized modifications, code reusability, easier maintenance and updates

• Limited functionality, decreased security, increased complexity

• Increased performance, reduced memory usage, enhanced readability

How does polymorphism enhance code reusability?

• By making the code more complex and harder to understand.

• By allowing objects of different classes to be treated as objects of a common superclass.

• By restricting the use of inheritance in the code.

• By limiting the number of classes that can be used in the code.

Why is abstraction important in object-oriented programming?

• Abstraction simplifies the code and makes it easier to understand.

• Abstraction increases code reusability and modularity.

• Abstraction improves code performance and efficiency.

• Abstraction allows for the separation of concerns and the hiding of unnecessary details.

How can class diagrams be used in software development?

• Class diagrams are used to visualize the structure and relationships between classes in software development.

• Class diagrams are used to test the performance of software development.

• Class diagrams are used to document the user interface of software development.

• Class diagrams are used to represent the flow of control in software development.