I am tasked with creating a Java program based on a dealership, and I am given four different components to code. However, I need to choose one, which is the 'Customer Database.$\text{'}$ I will provide you with the steps for the code, and if you refer to the picture I've provided, you can see the full instructions. As I mentioned, we only need to implement one part of the code, and I am focusing on the customer database. Also make a class digram. Remeber to use java to code this, thank you.

Steps for the code:

The last thing the system needs to track is its customers. Customers will have a name, address, and a list of all the vehicles they have purchased from the dealership. Additionally, you must be able to track whether or not they are preferred customers. Customers become preferred when they have bought three or more cars from the dealership.

Instructions:

Read the scenario carefully and choose to code ONE of the FOUR software for the dealership.

Minimum requirements are:

at least $2$ instance variables

at least $2$ behavioural methods

a toString method

menu in the tester class

Steps for the assignment

As a student of ICS$4$U$0$ you are asked with designing a new software program that will be used by various car companies around Canada. There are several things your program must do$.$

The first thing is that your program must keep track of car dealerships. Each dealership will have a name, franchise owner, yearly sales total, a list of current staff at the dealership, a roster list of clients for the dealership and list of current cars being sold at the dealership. In addition to the usual methods of being able to get and change the details of the dealership, you should also be able to compare dealerships of who is more successful. A dealership will have many vehicles.

You should be able to add new cars to a dealership, but make sure a car with the same VIN cannot be entered twice. Vehicles fall into $2$ basic types: cars and SUVS. Although both cars and SUVS have a model name, horsepower, VIN, colour and number of passengers, with SUVS you must also keep track of the towing capacity while on cars you must keep track of whether or not it a convertible. The program should be able to intake a VIN number and return whether or not the vehicle with that VIN number is on the lot at the dealership. Lastly you should know the list price on a vehicle. Vehicles fall into $2$ basic types: cars and SUVS. Both cars and SUVS have a model name, horsepower, VIN, colour and number of passengers. The program should be able to intake a VIN number and return whether or not the vehicle with that VIN number is on the lot at the dealership.

When a car is sold, keep track of the customer it has been sold to$,$ the amount the car was sold for, the amount of money given for the down payment, the amount owing on the vehicle and the interest rate on the car. A customer should not be able to buy a car if they already have $2$ or more cars with balances owing on the account.

Each dealership will also have staff. Staff will have a name, employee numbers, yearly sales average in dollars

and average numbers of cars sold per week. When an employee is initially added to the system, either all

these details can filled out, or the yearly sales average and numbers of cars sold per week can be left out, in

which case the system automatically sets the values to zero. Your program should rank the most successful

sales person, based on the highest dollar amount sold.

The last thing the system needs to keep track of is their customers. Customers will have a name, address, and

a list of all the vehicles they have bought from the dealership. The last thing you must be able to track with

customers is whether or not they are a preferred customer. Customers become preferred when they have

bought $3$ or more cars from the dealership.

You have to pick one ONE of the FOUR programs to code$-$ Car database, Sales Database, Employee database orthe Customer Database