docs: public static boolean isLeapYear(int y) {
  		boolean result = false;
  
  		if (((y % 4) == 0) && // must be divisible by 4...
  				((y < 1582) || // and either before reform year...
  						((y % 100) != 0) || // or not a century...
  						((y % 400) == 0))) { // or a multiple of 400...
  			result = true; // for leap year.
  		}
  		return result;
  	}