Use the composition technique to write a class declaration and main$()$ for the following

scenarios:

Create a class called Book. The Book class has the following attributes:

$$ bookId $($int$)$

$$ title $($string$)$

$$ author $($string$)$

$$ price $($double$)$

$$ bookCount $($static int $=1001)$

Methods:

$$ bookId is automatically assigned by the system, starting from $1001$ and increasing by

$1.$ The title, author and price attributes are accepted from main$()$ as parameters when

the object is created. $($Constructor$).$

$$ showBook$()$ function displays bookId, title, author, and price on the screen.

Create a class called Order. The Order class has the following attributes:

$$ orderId $($int$)$

$$ quantity $($int$)$

$$ book $($Book$)$

Methods:

$$ All order data members accept data from main$()$ as parameters when the object is

created. $($Constructor$)$

$$ Write a calculateTotal$()$ function that calculates and returns the total price of the order

according to the formula:

$$ totalPrice $=$ quantity $*$ book.price

$($How can you access the private member of another class?$)$

$$ showOrder$()$ function displays order ID$,$ book information, quantity, and total price to

the screen.

Create a class called Customer. The Customer class has the following attributes:

$$ customerId $($int$)$

$$ customerName $($string$)$

$$ phoneNo $($string$)$

$$ placedOrder $($Order$)$

Methods:

$$ All customer data members accept data from main$()$ as parameters when the object is

created. $($Constructor$)$

$$ showCustomer$()$ function displays customer ID$,$ customer name, phone number,

placed order information to the screen.

Main$()$

Write a program that calculates and prints all information of a customer to the screen with the

following format: