GregorianCalendar gc = new GregorianCalendar();
int mon = gc.get(Calendar.MONTH);
int day = gc.get(Calendar.DAY_OF_MONTH);
int year = gc.get(Calendar.YEAR);
System.out.println(mon);
System.out.println(day);
System.out.println(year);
System.out.println(gc.get(Calendar.DAY_OF_WEEK));
gc.set(Calendar.MONDAY, Calendar.DECEMBER);
int mon1 = gc.get(Calendar.MONTH);
System.out.println(mon1);
结果
0
5
2012
5
11