这样 得到 系统的 当前年， 月 ，日？100相送！

Question

Calendar calendar = new GregorianCalendar();
 System.out.println("YEAR: "  calendar.get(Calendar.YEAR));
 System.out.println("MONTH: "  calendar.get(Calendar.MONTH));
 System.out.println("WEEK_OF_YEAR: "  calendar.get(Calendar.WEEK_OF_YEAR));
 System.out.println("WEEK_OF_MONTH: "  calendar.get(Calendar.WEEK_OF_MONTH));
 System.out.println("DATE: "  calendar.get(Calendar.DATE));
 System.out.println("DAY_OF_MONTH: "  calendar.get(Calendar.DAY_OF_MONTH));
 System.out.println("DAY_OF_YEAR: "  calendar.get(Calendar.DAY_OF_YEAR));
 System.out.println("DAY_OF_WEEK: "  calendar.get(Calendar.DAY_OF_WEEK));
 System.out.println("DAY_OF_WEEK_IN_MONTH: "
                     calendar.get(Calendar.DAY_OF_WEEK_IN_MONTH));
 System.out.println("AM_PM: "  calendar.get(Calendar.AM_PM));
 System.out.println("HOUR: "  calendar.get(Calendar.HOUR));
 System.out.println("HOUR_OF_DAY: "  calendar.get(Calendar.HOUR_OF_DAY));
 System.out.println("MINUTE: "  calendar.get(Calendar.MINUTE));
 System.out.println("SECOND: "  calendar.get(Calendar.SECOND));
 System.out.println("MILLISECOND: "  calendar.get(Calendar.MILLISECOND));啊Ctrl-C+Ctrl-V的感觉真好