Module $6$: Portfolio Milestone

Step $4$: Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs $($empty methods$)$ initially, to be completed in later steps

$$ Parameterized constructor, which takes the customer name and date as parameters

$$ Attributes

$$ customer$\_$name $($string$)-$ Initialized in default constructor to "none"

$$ current$\_$date $($string$)-$ Initialized in default constructor to "January $1,2020"$

$$ cart$\_$items $($list$)$

$$ Methods

$$ add$\_$item$()$

o Adds an item to cart$\_$items list. Has parameter ItemToPurchase. Does not return anything.

$$ remove$\_$item$()$

o Removes item from cart$\_$items list. Has a string $($an item's name$)$ parameter. Does not return anything.

o If item name cannot be found, output this message: Item not found in cart. Nothing removed.

$$ modify$\_$item$()$

o Modifies an item's description, price, and$/$or quantity. Has parameter ItemToPurchase. Does not return anything.

o If item can be found $($by name$)$ in cart, check if parameter has default values for description, price, and quantity. If not, modify item in cart.

o If item cannot be found $($by name$)$ in cart, output this message: Item not found in cart. Nothing modified.

$$ get$\_$num$\_$items$\_$in$\_$cart$()$

o Returns quantity of all items in cart. Has no parameters.

$$ get$\_$cost$\_$of$\_$cart$()$

o Determines and returns the total cost of items in cart. Has no parameters.

$$ print$\_$total$()$

o Outputs total of objects in cart.

o If cart is empty, output this message: SHOPPING CART IS EMPTY

$$ print$\_$descriptions$()$

o Outputs each item's description.

Step $5$: In the main section of your code, implement the print$\_$menu$()$ function. print$\_$menu$()$ has a ShoppingCart parameter and outputs a menu of options to manipulate the shopping cart. Each option is represented by a single character. Build and output the menu within the function.

If an invalid character is entered, continue to prompt for a valid choice. Hint: Implement Quit before implementing other options. Call print$\_$menu$()$ in the main$()$ function. Continue to execute the menu until the user enters q to Quit.

Step $6$: Implement Output shopping cart menu option. Implement Output item's description menu option.