java中有關日期的顯示問題

import java.util.*;

import java.text.*;

public class StyleDemo {

   public static void main(String[] args) {

      Date now = new Date();

      DateFormat df = DateFormat.getDateInstance();

      DateFormat df1 = DateFormat.getDateInstance(DateFormat.SHORT);

DateFormat df2 = DateFormat.getDateInstance(DateFormat.MEDIUM);

      DateFormat df3 = DateFormat.getDateInstance(DateFormat.LONG);

      DateFormat df4 = DateFormat.getDateInstance(DateFormat.FULL);

      String s = df.format(now);

      String s1 = df1.format(now);

      String s2 = df2.format(now);

      String s3 = df3.format(now);

      String s4 = df4.format(now);

      System.out.println("(Default) Today is " + s);

      System.out.println("(SHORT) Today is " + s1);

      System.out.println("(MEDIUM) Today is " + s2);

      System.out.println("(LONG) Today is " + s3);

      System.out.println("(FULL) Today is " + s4);

   }

}

That program output the following:

(Default) Today is Nov 8, 2000

(SHORT) Today is 11/8/00

(MEDIUM) Today is Nov 8, 2000

(LONG) Today is November 8, 2000

(FULL) Today is Wednesday, November 8, 2000