Get the observed Daylight Time from SimpleTimeZone in Java

//from  www  . j  a v  a2 s . c  om
import java.util.Calendar;
import java.util.SimpleTimeZone;

public class Main {
  public static void main(String[] args) {
    SimpleTimeZone simpleTimeZone = new SimpleTimeZone(-21600000, "CST",
        Calendar.MARCH, 1, -Calendar.SUNDAY, 7200000, Calendar.NOVEMBER, -1,
        Calendar.SUNDAY, 7200000, 3600000);

    System.out.println(simpleTimeZone.getDisplayName() + " - "
        + simpleTimeZone.observesDaylightTime());


  }
}