Artem-Grigorash · Sep 29, 2022 · Sep 29, 2022 · Sep 29, 2022 · Sep 29, 2022 · Oct 3, 2022
diff --git a/.idea/.gitignore b/.idea/.gitignore
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
diff --git a/.idea/misc.xml b/.idea/misc.xml
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
@@ -1,8 +1,163 @@
+import java.io.PrintStream;
+import java.util.Scanner;
 public class Main {
-
+    public static Scanner in = new Scanner(System.in);
+    public static PrintStream out = System.out;
     public static void main(String[] args) {
-        // ваш код начнется здесь
-        // вы не должны ограничиваться только классом Main и можете создавать свои классы по необходимости
-        System.out.println("Привет Мир");
+        int persons = InputInt();
+        Positions[] pos = new Positions[100];
+
+        String nextPosition = AddName();
+        double nextPrice = AddPrice();
+        while (nextPrice<0){
+            out.println("Non-correct value for counting");
+            nextPrice = AddPrice();
+        }
+        int i = 0;
+        while (!(nextPosition.equalsIgnoreCase("Завершить") || nextPosition.equalsIgnoreCase("end"))) {
+            out.println("The dish has been added successfully!\nDo you want to add one more?");
+            pos[i] = new Positions(nextPosition, nextPrice);
+            nextPosition = AddName();
+            if (!(nextPosition.equalsIgnoreCase("Завершить") || nextPosition.equalsIgnoreCase("end"))) {
+                nextPrice = AddPrice();
+                while (nextPrice<0){
+                    out.println("Non-correct value for counting");
+                    nextPrice = AddPrice();
+                }
+            }
+            i += 1;
+        }
+
+        for (int j = 0; j < i; j++)
+            out.println(j + 1 + ") " + pos[j].name + " --- " + pos[j].price + " rubles");
+        double sum = 0;
+        for (int j = 0; j < i; j++)
+            sum += pos[j].price;
+        out.print("Total sum: " + String.format("%.2f", sum));
+        Ending(sum);
+        out.print(("Everyone has to pay: ") + String.format("%.2f", sum / persons));
+        Ending((sum / persons));
+
+        //далее дополнительная фича
+
+        out.println("Do you want to correct the list");
+        String choice = in.next();
+        int check = 0;
+        while (check == 0) {
+            if (choice.equalsIgnoreCase("Да") || choice.equalsIgnoreCase("Yes")) {
+                int del = 1;
+                while (del != 0) {
+                    del = (int) AddCorrections();
+                    if (del > 0 && del < i) {
+                        for (int y = del - 1; y < i - 1; y++) {
+                            pos[y] = pos[y + 1];
+                        }
+                        pos[i] = null;
+                        i--;
+                        for (int j = 0; j < i; j++)
+                            out.println(j + 1 + ") " + pos[j].name + " --- " + pos[j].price + " rubles");
+                        double sum1 = 0;
+                        for (int j = 0; j < i; j++)
+                            sum1 += pos[j].price;
+                        out.println("Total sum: " + String.format("%.2f", sum1));
+                        Ending(sum1);
+                        out.println(("Everyone has to pay: ") + String.format("%.2f", sum1 / persons));
+                        Ending((sum1 / persons));
+                    } else if (del < 0)
+                        out.println("The number cannot be less than zero");
+                    else if (del > i)
+                        out.println("Non-correct value");
+                }
+                out.println("Great! See you later");
+                check = 1;
+            } else if (choice.equalsIgnoreCase("Нет") || choice.equalsIgnoreCase("No")) {
+                out.println("Great! See you later");
+                check = 1;
+            } else {
+                out.println("Please, enter Yes/No");
+                choice = in.next();
+            }
+        }
+    }
+
+    public static int InputInt() {
+        //самодеятельность, проще сделать как для double, но зато сам
+        out.println("How many people should the bill be divided into?");
+        String enter = in.next();
+        int persons0 = 0, flag = 0, flag2 = 0;
+        while (flag == 0) {
+            for (int t = 0; t < enter.length(); t++) {
+                if (enter.charAt(t) < '0' || enter.charAt(t) > '9') {
+                    flag2 += 1;
+                }
+            }
+            if (flag2 == 0) {
+                int st = 1;
+                for (int r = enter.length() - 1; r >= 0; r--) {
+                    persons0 += ((int) enter.charAt(r) - 48) * st;
+                    st *= 10;
+                }
+                if (persons0 >= 1)
+                    flag = 1;
+            }
+            if (flag == 0) {
+                out.println("Non-correct value for counting\nPlease enter the correct value");
+                enter = in.next();
+            }
+            flag2 = 0;
+        }
+        return persons0;
+    }
+
+    public static boolean IsDouble(String input) {
+        double price;
+        try {
+            price = Double.parseDouble(input);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    public static boolean IsInt(String inp) {
+        int price;
+        try {
+            price = Integer.parseInt(inp);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    public static double AddCorrections(){
+        out.println("Enter the number of the dish you want to delete, If you have finished editing, enter 0");
+        String inp = in.next();
+        while (!IsInt(inp)){
+            out.println("Non-correct value for counting\nPlease enter the correct value");
+            inp = in.next();
+        }
+        return Integer.parseInt(inp);
+    }
+    public static double AddPrice(){
+        out.println("Enter the price of the dish in the format rub,kop");
+        String input = in.next();
+        while (!IsDouble(input)){
+            out.println("Non-correct value for counting\nPlease enter the correct value");
+            input = in.next();
+        }
+        return Double.parseDouble(input);
+    }
+    public static String AddName(){
+        out.println("Enter the name of the dish");
+        return in.next();
+    }
+    public static void Ending (double coast){
+        int price = (int) coast;
+        if (price%10 == 1 && price%100!=11)
+            out.println(" (рубль)");
+        else if (price%10<=4 && price%10>=2 && (price%100)/10!=2)
+            out.println(" (рубля)");
+        else
+            out.println(" (рублей)");
     }
 }
+
+
diff --git a/src/main/java/Positions.java b/src/main/java/Positions.java
@@ -0,0 +1,8 @@
+public class Positions {
+    String name;
+    double price;
+    Positions(String dishName, double dishPrice){
+        name = dishName;
+        price = dishPrice;
+    }
+}