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Alpha version 1.0 #1

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69 changes: 69 additions & 0 deletions src/main/java/Calculator.java
View file Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,69 @@
import java.util.ArrayList;
import java.util.Scanner;
public class Calculator {

private int numberOfPeople;
private double totalCost = 0;
private final ArrayList<String> listOfProducts;
private final ArrayList<Double> costOfProducts;

private final Formater format = new Formater();

private final Scanner scanner = new Scanner(System.in);

Calculator(){
listOfProducts = new ArrayList<>();
costOfProducts = new ArrayList<>();
}

public void start(){
System.out.print("Сколько человек будет делить счет: ");
this.numberOfPeople = format.scanInt();
addProduct();

while(true){
System.out.print("Желаете добавить ещё один товар? (Да/Завершить): ");
String str = scanner.next();
if(str.equalsIgnoreCase("Завершить")){
show();
break;
}
if(str.equalsIgnoreCase("Да")) {
addProduct();
}
}
}

public void addProduct(){
while(true){
System.out.print("Введите название продукта: ");
String str = scanner.next();
if(!str.isEmpty()){
this.listOfProducts.add(str);
addProductCost();
System.out.println("Товар успешно добавлен!");
break;
}
}
}

public void addProductCost(){
System.out.print("Введите цену товара: ");
double cost = format.scanDouble();
this.costOfProducts.add(cost);
this.totalCost += cost;

}

public void show(){
double result = totalCost/numberOfPeople;
String rubl = format.checkRes(result);
System.out.println("Добавленные товары: ");
for(int i = 0; i < listOfProducts.size(); i++){
System.out.printf("%-10s %20.2f \n", listOfProducts.get(i), costOfProducts.get(i));
}
System.out.printf("\nИтого с человека:%10.2f %-2s\n(Поделено на %d человек)\n",
result, rubl, numberOfPeople);
}

}
60 changes: 60 additions & 0 deletions src/main/java/Formater.java
View file Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,60 @@
import java.util.Scanner;

public class Formater {

private Scanner scanner = new Scanner(System.in);


public int scanInt(){
while(true){
if(scanner.hasNextInt()){
int numbForScan = scanner.nextInt();
if(numbForScan > 1){
return numbForScan;
}
else{
System.out.println("Ошибка! Введите корректное число.");
scanner = null;
scanner = new Scanner(System.in);
}
}
else {
System.out.println("Ошибка! Введите корректное число.");
scanner = null;
scanner = new Scanner(System.in);
}
}
}

public double scanDouble(){
while(true){
if(scanner.hasNextDouble()){
double numbForScan = scanner.nextDouble();
if(numbForScan > 0){
return numbForScan;
}
else{
System.out.println("Ошибка! Введите корректное число.");
scanner = null;
scanner = new Scanner(System.in);
}
}
else {
System.out.println("Ошибка! Введите корректное число.");
scanner = null;
scanner = new Scanner(System.in);
}
}
}

public String checkRes(double numb){
int a = (int) Math.floor(numb);
if(a % 10 == 1) {
if(a % 100 == 11) return "рублей";
else return "рубль";
}
else if (a % 100 >= 12 && a % 100 <= 15) return "рублей";
else if (a % 10 > 1 && a % 10 < 5) return "рубля";
else return "рублей";
}
}
4 changes: 2 additions & 2 deletions src/main/java/Main.java
View file Open in desktop
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@

public class Main {
public static void main(String[] args) {
System.out.println("Hello world!");
Calculator calculator = new Calculator();
calculator.start();
}
}

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