public class Array1 {
	public static void main(String[] args) {

		int january   = 31; 	//all the same data type
		int february  = 28;
		int march     = 31;
		int april     = 30;
		int may       = 31;
		int june      = 30;
		int july      = 31;
		int august    = 31;
		int september = 30;
		int october   = 31;
		int november  = 30;
		int december  = 31;

		int sum = january + february + march + april + may + june
			+ july + august + september + october + november +
			+ december;

		System.out.println("A year has " + sum + " days.");
		System.out.println("The average length of a month is "
			+ sum / 12.0 + " days.");	//don't truncate!
	}
}