a) 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 Customers data. Write a main() function in which you declare a Customer, set the Customers fields, and display the results. Save the file as Customer.java.

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. Save the file as Customer2.java.