import java.util.ArrayList;

public class Goods {

public String productName;

public Double productPrice;

Goods(String productName, Double productPrice) {

this.productName = productName;

this.productPrice = productPrice;

}

public static void calculate(ArrayList<Goods> goods, int quantity){

double sum = 0;

for (int i = 0; i < goods.size(); i++){

System.out.println(String.format("Товар %d: %s цена: %.2f", i + 1, goods.get(i).productName, goods.get(i).productPrice));

sum += goods.get(i).productPrice;

}

Double sumPerPeople = sum / quantity;

String textRub = takeEnding(sumPerPeople.intValue());

System.out.println(String.format("Итого с каждого человека по %.2f %s.", sumPerPeople, textRub));

}

private static String takeEnding (int sumPerPeopleInt){

int remainderOne = sumPerPeopleInt % 10;

int remainderTwo = sumPerPeopleInt % 100;

if (remainderTwo >= 11 && remainderTwo <= 14)

return "рублей";

else if (remainderOne == 1)

return "рубль";

else if (remainderOne > 1 && remainderOne <=4)

return "рубля";

else

return "рублей";

}

}