public class Calculator { private static String listProducts = ""; private static double sumOfProducts = 0; private static int numberOfPeoples; public static void setNumberOfPeoples (int setNumberOfPeoples ) { numberOfPeoples = setNumberOfPeoples; } public static void makeListOfProducts (Product product) { listProducts = listProducts + product.getNameProduct() + "\n"; } public static void countSumOnBill (Product priceProduct) { sumOfProducts += priceProduct.getPriceProduct(); } public static String getListProducts() { System.out.println("\nДобавленные товары:"); return listProducts; } public static double getSumOfProducts (){ return sumOfProducts; } public static double getSumForOnePeople(){ return sumOfProducts / numberOfPeoples; } }