JAVA CUSTOMER BILLING PROJECT (Urgent and Priority, Please Help) Write an application where a customer can create orders

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JAVA CUSTOMER BILLING PROJECT (Urgent and Priority,
Please Help)
Write an application where a customer can create orders, save
and view their invoices.
The concepts of final, static, overload, override, constructor,
inheritance, polymorphism, encapsulation, List, Set, Map should be
used.
You can add to the system. It is enough to work on the main
method.
Try to write in accordance with SOLID principles. Code quality
will be scored, pay attention to naming conventions. Listing
operations should be done using stream.
**TL is Turkish Lira (Currency)
The features of the program should be as follows.
- Create a Maven project.
- Run the maven commands and add the output
- List all customers.
- Be able to create new customers
- List customers with the letter 'C' in them
- List the total amount of invoices for customers who signed up
in June
- List all invoices in the system
- List invoices over 1500TL in the system
- Calculate the average of invoices over 1500TL in the
system
- List the names of customers with invoices under 500TL in the
system
- Write the code that lists the companies in which the average
invoices for the month of June are below 750TL