Draw a basic UML diagram for the following:

 • Product Class: This class has three private attributes: name (String), price (double), and quantity (int). It also has a constructor and corresponding getters and setters for each attribute.

 • Inventory Class: Contains a private Map named products that maps String to Product. It has a constructor and methods including addProduct(Product product).

 • Catalog Class: Has a private Inventory object named inventory. It includes a constructor that takes an Inventory object and a method displayCatalog(). 

• Cart Class: This class has a private Map named items that maps String to Integer. It has a constructor and methods such as addItem(Product product, int quantity) and calculateTotalCost() that returns a double.

 • OrderSummary Class: It has a single method, generateSummary(Cart cart), which returns a String.

 • Checkout Class: Contains a private Cart object named cart. It has a constructor that takes a Cart object and a method checkout(). Relationships: 

• Catalog has an association with Inventory, indicating that Catalog uses Inventory. 

• Checkout has an association with Cart, indicating that Checkout uses Cart.

 • Cart uses Product, as it adds Products to its items Map, which suggests an association relationship. Each class can be represented as a rectangle with three compartments: the top compartment for the class name, the middle for attributes, and the bottom for methods. The associations would be represented with lines connecting the classes, typically with a clear arrowhead or a simple line if it's a bidirectional association.