/**
?* @version 1.20 27 Mar 1998
?* @author Cay Horstmann
?*/
?
import corejava.*;
public class Calendar
{? public static void main(String[] args)
?? {? int m;
????? int y;?
????? if (args.length == 2)
????? {? m = Integer.parseInt(args[0]);
???????? y = Integer.parseInt(args[1]);
????? }
????? else
????? {? Day today = new Day(); // today's date
???????? m = today.getMonth();
???????? y = today.getYear();
????? }
????? Day d = new Day(y, m, 1); // start date of the month
????? System.out.println(m + " " + y);
????? System.out.println("Sun Mon Tue Wed Thu Fri Sat");
????? for (int i = Day.SUNDAY; i < d.weekday(); i++ )
???????? System.out.print("??? ");
????? while (d.getMonth() == m)
????? {? if (d.getDay() < 10) System.out.print(" ")；
???????? System.out.print(d.getDay());
???????? if (d.weekday() == Day.SATURDAY)
??????????? System.out.println();
???????? else
??????????? System.out.print("? ");
???????? d.advance(1);
????? }
????? if (d.weekday() != Day.SUNDAY) System.out.println();
?? }
}