morechiba · morechiba · Apr 14, 2024 · Apr 14, 2024 · Apr 14, 2024 · Apr 14, 2024
diff --git a/src/main/java/Calculator.java b/src/main/java/Calculator.java
@@ -0,0 +1,35 @@
+import java.util.ArrayList;
+import java.util.Iterator;
+
+public class Calculator {
+        ArrayList<Good> goodList = new ArrayList<>();
+
+        float sum = 0;
+        int quantityPersons;
+
+        float getSum(ArrayList<Good> goodList) {
+
+            this.goodList = goodList;
+            Iterator iterator = goodList.iterator();
+
+            while(iterator.hasNext()){
+                Good good = (Good) iterator.next();
+                sum = sum + good.price;
+            }
+            return sum;
+        }
+
+        float getSumForPerson(int quantityPersons, float sum) {
+            this.sum = sum;
+            this.quantityPersons = quantityPersons;
+            float sumForPerson = sum / quantityPersons;
+            return sumForPerson;
+        }
+
+       /*
+
+            System.out.println(String.format("Каждый должен заплатить " + f%.2f + " р.", sumForPerson));
+*/
+
+
+}
diff --git a/src/main/java/Formater.java b/src/main/java/Formater.java
@@ -0,0 +1,26 @@
+public class Formater {
+    float sumForPerson = 0;
+    String formatItog(float sumForPerson) {
+        this.sumForPerson = sumForPerson;
+        int formaterBase = (int)sumForPerson;
+        String rubl = "";
+
+        if(formaterBase >= 100) {
+            formaterBase = formaterBase % 100;
+        }
+        if(formaterBase > 20){
+            formaterBase = formaterBase % 10;
+        }
+
+        if (formaterBase == 1) {
+            rubl = "рубль";
+        } else if (formaterBase > 1 && formaterBase < 5){
+            rubl = "рубля";
+        } else {
+            rubl = "рублей";
+        }
+        String itog = String.format("%.2f %s", sumForPerson, rubl);
+        return itog;
+    }
+
+}
diff --git a/src/main/java/Good.java b/src/main/java/Good.java
@@ -0,0 +1,8 @@
+public class Good {
+    String name;
+    float price;
+    Good(String name, float price){
+        this.name = name;
+        this.price = price;
+    }
+}
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
@@ -1,6 +1,108 @@
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.Scanner;
 
 public class Main {
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+
+        int quantityPersons = getQuantityPersons();
+
+        ArrayList<Good> goodList = getGoodList();
+
+        Calculator calculator = new Calculator();
+        Formater formater = new Formater();
+        float sum = calculator.getSum(goodList);
+        float sumForPerson = calculator.getSumForPerson(quantityPersons, sum);
+        String goodListString = getGoodListString(goodList);
+        String formatString = formater.formatItog(sumForPerson);
+
+        System.out.println(goodListString);
+        System.out.println("Сумма на человека: " + formatString + ".");
+
+    }
+
+    public static int getQuantityPersons() {
+        Scanner scanner = new Scanner(System.in);
+
+        int quantityPersons;
+
+        while(true) {
+            System.out.println("На сколько человек разделить счет?");
+
+            if (scanner.hasNextInt()) {
+                quantityPersons = scanner.nextInt();
+                if(quantityPersons <= 0) {
+                    System.out.println("Некорректное значение.");
+                } else if (quantityPersons == 1) {
+                    System.out.println("Нечего делить!");
+                } else {
+                    break;
+                }
+            } else {
+                System.out.println("Введите число.");
+                scanner.next();
+            }
+        }
+        return quantityPersons;
     }
-}
+    public static ArrayList<Good> getGoodList() {
+        Scanner scanner = new Scanner(System.in);
+        ArrayList<Good> goodList = new ArrayList<>();
+        int position = 0;
+        while(true) {
+            if(position == 0) {
+                System.out.println("Введите наименование товара.");
+            } else {
+                System.out.println("Введите наименование товара или команду Завершить.");
+            }
+
+            String goodName = scanner.next();
+            if(goodName.equalsIgnoreCase("Завершить")){
+                break;
+            } else {
+                System.out.println("Введите стоимость товара.");
+                while(scanner.hasNext()){
+                    if(scanner.hasNextFloat()){
+                        float goodPrice = scanner.nextFloat();
+                        if(goodPrice <= 0){
+                            System.out.println("Стоимость товара не может быть отрицательной или равна нулю.");
+                        } else {
+                            Good good = new Good(goodName, goodPrice);
+                            goodList.add(good);
+                            System.out.println("Товар " + goodName + " успешно добавлен.");
+                            position++;
+                            break;
+                        }
+                    } else {
+                        System.out.println("Стоимость - целое число или число с запятой.");
+                        scanner.next();
+                    }
+                }
+            }
+        }
+
+        float sum = 0;
+        Iterator iterator = goodList.iterator();
+
+        while(iterator.hasNext()){
+           Good good = (Good) iterator.next();
+           sum = sum + good.price;
+        }
+        return goodList;
+    }
+
+    public static String getGoodListString(ArrayList<Good> goodL) {
+        ArrayList<Good> goodList = goodL;
+        String goodListString = new String("");
+        Iterator iterator = goodList.iterator();
+
+        while(iterator.hasNext()){
+            Good good = (Good) iterator.next();
+            goodListString = goodListString + "\n" +good.name;
+        }
+
+        goodListString = "Добавленные товары:" + goodListString;
+        return goodListString;
+    }
+}
+