Leap year help

Question

Basically I have the program running great and works fine. But I have to get it to make you put in another date if it is less then 1582. But that's where it goes down to the end and prints out no years processed. But I have been trying to get it to enter in another date and then continue with the program. Any suggestions? Here is my code.
import java.util.Scanner;
public class LeapYear {
     public static void main(String[] args)
          int year;
          int numYear = 0;
          Scanner scan = new Scanner(System.in);
          System.out.println("please enter a year from 1582 onward.");
          year = scan.nextInt();          
          while (year >=1582)
               numYear++;
               if (year<1582)
                    numYear++;
                    System.out.println("Please enter in a year from 1582 and up");
                    year = scan.nextInt();
               if (year%400 == 0 || (year%4 == 0)&& (year%100 != 0))
                    System.out.println("It's a leap year!");
                    else
                    if(!(year%400 == 0) || !(year%4 == 0)&& (year%100 == 0))
                         System.out.println("It's not a leap year...");
               System.out.print("Enter the next year (a negative to quit): ");
               year = scan.nextInt();
     if (numYear > 0)
          System.out.println("Fin");
     else
          System.out.println("No years processed.");          
}

Answer 1

I did have this at the end
while (true)
            numYear++;
          if (year<1582)
            //don't ++ the numYear again
            System.out.println("Please enter in a year from 1582 and up");
            year = scan.nextInt();
          else if (year%400 == 0 || (year%4 == 0)&& (year%100 != 0))
            System.out.println("It's a leap year!");
          else
              System.out.println("It's not a leap year...");
               System.out.print("Enter the next year (a negative to quit): ");
               year = scan.nextInt();
                      if(numYears<0)
                         System.out.println("Fin.");
}But it makes me delete it, it's not letting me terminate the program. I enter in -9 it does
Please enter in a year from 1582 and upI want it to say
Fin