runnian.java

public class runnian {
 public static void main(String[] args) {
  int year;
  int n = 0;
  for (year = 100; year <= 2009; year++) {
   if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
    System.out.print(year + "  ");
    n++;
    if (n < 5) {
     continue;
    } else {

     System.out.println("");
     n = 0;
    }
   }

  }

 }

}