Class Definition:

• Define a class named Car with attributes such as make, model, and year.
• Write a method within the class to display information about the car.

Object Creation:

• Create an object of the Car class.
• Set values for the attributes and call the method to display the car information.

Constructor Implementation:

• Modify the Car class to include a constructor that initializes the attributes.
• Create multiple objects using the constructor.

Inheritance Setup:

• Create a parent class named Vehicle with attributes common to various vehicles.
• Create a child class named Car that inherits from Vehicle and adds specific attributes for cars.

Method Overriding:

• Define a method in the Vehicle class and override it in the Car class.
• Demonstrate method overriding by creating objects of both classes and calling the methods.

Abstract Class Setup:

• Create an abstract class named Shape with an abstract method calculate_area.
• Create two subclasses (Circle and Rectangle) that inherit from Shape and implement the calculate_area method.

Shape Calculation:

• Create objects of both Circle and Rectangle classes.
• Call the calculate_area method for each object and print the results.

Encapsulation Implementation:

• Create a class named Employee with private attributes such as name, salary, and designation.
• Write getter and setter methods to access and modify these attributes.

Data Validation:

• Implement data validation in the setter methods to ensure that the salary is positive and the designation is a valid job title.
• Demonstrate these validations by creating objects and attempting to set invalid values.