$2.$ Exercise: Marks: $10$

Create a C$++$ class Book that represents a book with attributes such as title, author, isbn, and

price. Implement the following functionalities using operator overloading for insertion $(<<)$ and

extraction $(>>)$ operators:

$$ Data Members: Include private data members for title, author, isbn, and price.

$$ Constructor: Implement a constructor to initialize these attributes.

$$ Overloading $<<$ Operator: Implement a friend function to overload the $<<$ operator for

ostream to output the Book object in a formatted way.

$$ Overloading $>>$ Operator: Implement a friend function to overload the $>>$ operator for

istream to input values into the Book object.

$$ Validation: Implement basic validation inside the $>>$ operator function to ensure that the

input values are valid $($e$.$g$.,$ positive price$).$

Implementation of the Book class by writing the necessary member functions and overloading

the operators mentioned above. Ensure proper formatting of input and output, and handle errors

where applicable.