日期时间（二）

　　 // Calendar.class
    // 如果直接设置月份或者星期时请注意±1，使用SimpleDateFormat则无此问题。
    /*
     * #DAY_OF_WEEK 
     * public final static int SUNDAY = 1; 
     * public final static int MONDAY = 2; 
     * public final static int TUESDAY = 3; 
     * public final static int WEDNESDAY = 4; 
     * public final static int THURSDAY = 5; 
     * public final static int FRIDAY = 6; 
     * public final static int SATURDAY = 7;
     * 
     * #MONTH public
     * final static int JANUARY = 0; 
     * public final static int FEBRUARY = 1;
     * public final static int MARCH = 2; 
     * public final static int APRIL = 3;
     * public final static int MAY = 4; 
     * public final static int JUNE = 5; 
     * public final static int JULY = 6; 
     * public final static int AUGUST = 7; 
     * public final static int SEPTEMBER = 8; 
     * public final static int OCTOBER = 9;
     * public final static int NOVEMBER = 10; 
     * public final static int DECEMBER = 11; 
     * public final static int UNDECIMBER = 12;
     */

public static void main(String[] args) {
        Calendar c = Calendar.getInstance();
        System.out.println(c.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.LONG, Locale.UK));
        System.out.println(c.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.SHORT, Locale.UK));
        System.out.println(c.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.ALL_STYLES, Locale.UK));

        System.out.println(c.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, Locale.UK));

        System.out.println(c.getDisplayNames(Calendar.MONTH, Calendar.LONG, Locale.UK));
        System.out.println(c.getDisplayName(Calendar.MONTH, Calendar.LONG, Locale.UK));
    }

{Saturday=7, Thursday=5, Monday=2, Tuesday=3, Wednesday=4, Friday=6, Sunday=1}
{Thu=5, Wed=4, Sun=1, Sat=7, Fri=6, Tue=3, Mon=2}
{Thu=5, Thursday=5, Saturday=7, Monday=2, Wed=4, Sun=1, Tuesday=3, Sat=7, Wednesday=4, Fri=6, Tue=3, Mon=2, Friday=6, Sunday=1}
Wednesday
{October=9, January=0, April=3, February=1, August=7, June=5, November=10, July=6, May=4, December=11, March=2, September=8}
June