GHGELE

import javax.security.auth.login.LoginContext;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        //ОБЬЯВЛЕНИЕ ПЕРЕМЕННЫХ И ДЕЙСТВИЙ
        Scanner act = new Scanner(System.in);
        int BalanceR = 1000;
        int cost = 100;
        String R = "Rub.";
        int Stock = 0;
        String[] cond = {"Продать товар", "Купить товар"};
        //Условие
            System.out.println("Выберите следующее действие: ");
            for (int i = 0; i < cond.length; i++) {
                System.out.println(cond[i]);
            }
            int choosed = act.nextInt();
            if (choosed == 1){
                int Stockbuy = act.nextInt();
                sell(Stockbuy, cost, BalanceR, Stock);
            }
            if (choosed == 2){
                int Stockbuy = act.nextInt();
                buy(Stockbuy, cost, BalanceR, BalanceR);
            }
        }
    //ФУНКЦИИ
    public static void sell(int a, int b, int c, int Check) {
        if (a > Check) {
            int sellcost = a * b;
            c = c + sellcost;
            System.out.println("Вы успешно продали " + a + " и получили " + sellcost);
            System.out.println("Ваш баланс стал: " + c);
        }else {
            System.out.println("Нехватка товара");
        }
    }
    public static void buy(int a, int b, int c, int Check) {
        int buycost = a * b;
        if (buycost <= Check) {
            c = c - buycost;
            System.out.println("Вы успешно купили " + a + " за " + buycost);
            System.out.println("Ваш баланс стал: " + c);
        } else {
            System.out.println("Нехватка средств");
        }
    }
}