Vita:leap year
public class LeapYear { public static void main(String[] args) { int year = Integer.parseInt(args[0]); boolean isLeapYear; // div by 4 but not 100 isLeapYear = (year % 4 == 0) && (year % 100 != 0); // div by 400 isLeapYear = isLeapYear || (year % 400 == 0); System.out.println(isLeapYear); } }