Core Java (6) print the calendar of a specified month

A program of the changed core Java utilizes the gregoriancalendar class.

Enter the year and month to print the calendar of the specified month.

Package COM. xujin; import Java. text. dateformatsymbols; import Java. util. calendar; import Java. util. gregoriancalendar; import Java. util. locale; import Java. util. failed; public class test {static partition CIN = new partition (system. in); public static void main (string [] ARGs) {locale. setdefault (locale. US); // set it to the US region system. out. print ("Please input the year and month (like 1999 9):"); int year = cin. nextint (); int mon Th = cin. nextint (); gregoriancalendar day = new gregoriancalendar (); // It is accurate after October 4, March 1. // set day to the first day of the month. set (calendar. year, year); Day. set (calendar. month, month-1); Day. set (calendar. day_of_month, 1); int weekday = Day. get (calendar. day_of_week); int firstdayofweek = Day. getfirstdayofweek (); int indent = 0; while (weekday! = Firstdayofweek) {indent ++; Day. add (calendar. day_of_month,-1); weekday = Day. get (calendar. day_of_week);} string [] weekdaynames = new dateformatsymbols (). getaskweekdays (); do {system. out. printf ("% 4 s", weekdaynames [weekday]); Day. add (calendar. day_of_month, 1); weekday = Day. get (calendar. day_of_week);} while (weekday! = Firstdayofweek); system. out. println (); For (INT I = 0; I <indent; I ++) system. out. print (""); Day. set (calendar. day_of_month, 1); do {int d = Day. get (calendar. day_of_month); system. out. printf ("% 4 s", d); Day. add (calendar. day_of_month, 1); weekday = Day. get (calendar. day_of_week); If (weekday = firstdayofweek) system. out. println ();} while (month-1 = Day. get (calendar. month); If (weekday! = Firstdayofweek) system. Out. println ();}}

Result: