This example displays the names of the weekdays in short form with the help of DateFormatSymbols().getWeekdays() method of DateFormatSymbols class.

import java.text.*;
import java.util.*;
public class Main {
   public static void main(String[] args) {
      Date dt = new Date(1000000000000L);

      DateFormat[] dtformat = new DateFormat[6];
      dtformat[0] = DateFormat.getInstance();
      dtformat[1] = DateFormat.getDateInstance();
      dtformat[2] = DateFormat.getDateInstance(DateFormat.MEDIUM);
      dtformat[3] = DateFormat.getDateInstance(DateFormat.FULL);
      dtformat[4] = DateFormat.getDateInstance(DateFormat.LONG);
      dtformat[5] = DateFormat.getDateInstance(DateFormat.SHORT);

      for(DateFormat dateform : dtformat)
         System.out.println(dateform.format(dt));
  }
}