Перемножение всех цифр

import java.util.Scanner;
//import java.lang.String;
public class untitled {
    public static void main (String[] args){
        Scanner in = new Scanner(System.in);
        System.out.print("Введите два числа: ");
        String numbers1 = in.nextLine();
        System.out.println("Вы ввели: " + numbers1);
        String numbers2 = numbers1.replaceAll("\\s","");
        System.out.print(result(numbers2));
    }
    public static boolean minusFlag (String ar){
        boolean minus = false;
        int i = 0;
        for (String number2: ar.split("")) {
            if (number2.equals("-")) {
                i = i + 1;
            }
        }
        if (i%2 != 0) {
            minus = true;
        }
        return minus;
    }

    public static int result (String str){
        int res = 1;
        String numbers = str.replaceAll("-","");
        for (String number : numbers.split("")) {
            int tmp2 = Integer.parseInt(number);
            res = res * tmp2;
        }
        if (minusFlag(str)){
            res = -res;
        }
        return res;
    }
}