import java.util.Scanner; public class Main { static Scanner scan = new Scanner(System.in); static Scanner scan1 = new Scanner(System.in); static Scanner scan2 = new Scanner(System.in); static Scanner scan3 = new Scanner(System.in); static int people; static Double productPrice; public static void main(String[] args) { Calculation calculation = new Calculation(); // ваш код начнется здесь // вы не должны ограничиваться только классом Main и можете создавать свои классы по необходимости System.out.println("Привет Мир"); people(); while(true){ addProduct(); System.out.println("You want add another product? Input 'finish' if - No, else any symbol"); String finish = scan3.nextLine(); if(finish.equalsIgnoreCase("finish")){ break; } } System.out.println("You order: " + calculation.calculationNameProduct()); System.out.println("Your price per guest: " + calculation.calculationPriceProduct() / people + " ' " + makeEnding(productPrice) + ".penni'"); } public static int people(){ while (true) { System.out.println("How guest?"); if (scan.hasNextInt()) { people = scan.nextInt(); if (people > 1) { break; } else if (people == 1) { System.out.println("nothing to share"); } else { System.out.println("invalid input"); scan.nextInt(); } }else{ System.out.println("invalid input"); scan.nextInt(); } } return people; } public static Product addProduct(){ Product product = new Product(); String productName; System.out.println("Input name product"); productName = scan1.nextLine(); product.setNameProduct(productName); System.out.println("you added " + productName); while(true){ System.out.println("Input price product into format: 'rubles.penni' [10,45]"); if(scan2.hasNextDouble()){ productPrice = scan2.nextDouble(); if(productPrice > 0){ System.out.println("Price product: " + productPrice); product.setPriceProduct(productPrice); break; }else { System.out.println("invalid input"); scan2.next(); } }else { System.out.println("invalid input"); scan2.next(); } }return product; } public static String makeEnding(Double productPrice){ if(Math.round(productPrice)%10 == 1 && Math.round(productPrice)%100 != 11){ return "ruble"; }else if((Math.round(productPrice)%10) <= 4 && (Math.round(productPrice)%100 >= 2) && (Math.round(productPrice)%100)/10 != 2){ return "rubles"; } else return "rubles"; } }