Define a class named Customer that holds private fields for a customer ID number, last name, first name, and credit limit. Include four public functions that each set one of the four fields. Do not allow any credit limit over $10,000. Include a public function that displays a Customer’s data.a. Write a main()function in which you declare a Customer, set the Customer’s fields, and display the results.b. Write a main()function that declares an array of five Customer objects. Prompt the user for values for each Customer, and display all five Customer objects

Here is a Python solution for your problem:

class Customer:
    def __init__(self):
        self.__id = None
        self.__last_name = None
        self.__first_name = None
        self.__credit_limit = None

    def set_id(self, id):
        self.__id = id

    def set_last_name(self, last_name):
        self.__last_name = last_name

    def set_first_name(self, first_name):
        self.__first_name = first_name

    def set_credit_limit(self, credit_limit):
        if credit_limit > 10000:
            print("Credit limit cannot exceed $10,000")
        else:
            self.__credit_limit = credit_limit

    def display(self):
        print(f"Customer ID: {self.__id}, Last Name: {self.__last_name}, First Name: {self.__first_name}, Credit Limit: {self.__credit_limit}")


# a. Write a main()function in which you declare a Customer, set the Customer’s fields, and display the results.
def main():
    customer = Customer()
    customer.set_id(1)
    customer.set_last_name("Doe")
    customer.set_first_name("John")
    customer.set_credit_limit(5000)
    customer.display()


main()

# b. Write a main()function that declares an array of five Customer objects. Prompt the user for values for each Customer, and display all five Customer objects
def main():
    customers = [Customer() for _ in range(5)]
    for i in range(5):
        id = int(input("Enter customer id: "))
        last_name = input("Enter last name: ")
        first_name = input("Enter first name: ")
        credit_limit = int(input("Enter credit limit: "))
        customers[i].set_id(id)
        customers[i].set_last_name(last_name)
        customers[i].set_first_name(first_name)
        customers[i].set_credit_limit(credit_limit)

    for customer in customers:
        customer.display()


main()

This code first defines a Customer class with private fields for customer ID, last name, first name, and credit limit. It also includes public functions to set these fields, with a check to ensure the credit limit does not exceed $10,000. The display function is used to print the customer's details.

The main function creates a Customer object, sets its fields, and displays the results. The second main function creates an array of five Customer objects, prompts the user for values for each customer, and displays all five customer objects.

Here is the Python code for your request:

class Customer:
    def __init__(self):
        self.__id = None
        self.__last_name = None
        self.__first_name = None
        self.__credit_limit = None

    def set_id(self, id):
        self.__id = id

    def set_last_name(self, last_name):
        self.__last_name = last_name

    def set_first_name(self, first_name):
        self.__first_name = first_name

    def set_credit_limit(self, credit_limit):
        if credit_limit > 10000:
            print("Credit limit cannot exceed $10,000.")
        else:
            self.__credit_limit = credit_limit

    def display(self):
        print(f"Customer ID: {self.__id}, Last Name: {self.__last_name}, First Name: {self.__first_name}, Credit Limit: {self.__credit_limit}")


# a. Write a main()function in which you declare a Customer, set the Customer’s fields, and display the results.
def main():
    customer = Customer()
    customer.set_id(1)
    customer.set_last_name("Doe")
    customer.set_first_name("John")
    customer.set_credit_limit(5000)
    customer.display()


main()

# b. Write a main()function that declares an array of five Customer objects. Prompt the user for values for each Customer, and display all five Customer objects
def main():
    customers = [Customer() for _ in range(5)]
    for i in range(5):
        id = int(input("Enter customer ID: "))
        last_name = input("Enter last name: ")
        first_name = input("Enter first name: ")
        credit_limit = int(input("Enter credit limit: "))
        customers[i].set_id(id)
        customers[i].set_last_name(last_name)
        customers[i].set_first_name(first_name)
        customers[i].set_credit_limit(credit_limit)

    for customer in customers:
        customer.display()


main()

This code first defines a class `Customer