تولید کننده کد ملی در جاوا

nationalCodeGenerator.java

public class GenerateIranNationalCode
{
    public static void main(String[] args)
    {
        List<Integer> numbers = new ArrayList<Integer>();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 9; i++)
        {
            int nextInt = ThreadLocalRandom.current().nextInt(0, 9 + 1);
            numbers.add(nextInt);
            sb.append(nextInt);
        }
        int i = 10;
        int tempB = 0;
        for (Integer integer : numbers)
        {
            tempB += integer * i;
            i--;
        }
        int tempC = tempB - (tempB / 11) * 11;
        if (tempC == 0)
        {
            // apend tempc
            sb.append(tempC);
        }
        if (tempC == 1)
        {
            // append 1
            sb.append(tempC);
        }
        if (tempC > 1)
        {
            // append tempc -11
            sb.append(Math.abs(tempC - 11));
        }

        System.out.println(sb.toString());

    }

}