public class Product { String name; double price; Product(String name, double price) { this.name = name; this.price = price; } public void info() { System.out.println("Товар " + name + " цена " + price + " " + GetRubleAddition(price)); } public static String GetRubleAddition(Double value) { int num = value.intValue(); int preLastDigit = num % 100 / 10; if (preLastDigit == 1) { return "рублей"; } switch (num % 10) { case 1: return "рубль"; case 2: case 3: case 4: return "рубля"; default: return "рублей"; } } }