Shopping

package softuni;

import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.util.Scanner;

/**
 *
 * @author SYSTEM
 */
public class SoftUni {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        DecimalFormat decFormat = new DecimalFormat("#.##");
        System.out.println("Enter the amount of money Lina has: ");
        BigDecimal shoppingMoney = new BigDecimal(sc.nextLine());
        BigDecimal price;
        int purchases = 0;
        String command = sc.nextLine();
        while(!command.equals("mall.Enter")){
            command = sc.nextLine();
        }
        command = sc.nextLine();
        while(!command.equals("mall.Exit")){
            for(char action : command.toCharArray()){
                if(action >= 'A' && action <= 'Z'){
                    price = new BigDecimal((int) action).multiply(new BigDecimal(0.5));
                    if(shoppingMoney.compareTo(price) < 0){
                        continue;
                    }
                    shoppingMoney = shoppingMoney.subtract(price);
                    purchases++;
                }
                else if(action >= 'a' && action <= 'z'){
                    price = new BigDecimal((int) action).multiply(new BigDecimal(0.3));
                    if(shoppingMoney.compareTo(price) < 0){
                        continue;
                    }
                    shoppingMoney = shoppingMoney.subtract(price);
                    purchases++;
                }
                else if(action == '%'){
                    price = new BigDecimal(2);
                    if(shoppingMoney.compareTo(price) < 0){
                        continue;
                    }
                    shoppingMoney = shoppingMoney.divide(price);
                    purchases++;
                }
                else if(action == '*'){
                    price = new BigDecimal(10);
                    if(shoppingMoney.compareTo(price) < 0){
                        continue;
                    }
                    shoppingMoney = shoppingMoney.add(price);
                    purchases++;
                }
                else{
                    price = new BigDecimal((int) action);
                    if(shoppingMoney.compareTo(price) < 0){
                        continue;
                    }
                    shoppingMoney = shoppingMoney.subtract(price);
                    purchases++;
                }
            }
            command = sc.nextLine();
        }

        if(purchases == 0){
            System.out.println("No purchases. Money left: " + decFormat.format(shoppingMoney) + " lv.");
        }
        else{
            System.out.println(purchases + " purchases. Money left: " + decFormat.format(shoppingMoney) + " lv.");
        }
    }

}