What refrigerant has been approved for new household refrigerators and freezers

Create a class named formletterwriter that includes two overloaded methods named the first method takes one string parameter that represents a customer’s last name, and it displays the salutation dear mr. or ms. followed by the last name. the second method accepts two string parameters that represent a first and last name, and it displays the greeting dear followed by the first name, a space, and the last name. after each salutation, display the rest of a short business letter: you for your recent order.