I am getting the wrong month from Calendar.MONTH, why?

Question

public class TestCal {
   public static void main( String[] args ) {
      java.util.Calendar calendar = java.util.Calendar.getInstance();
      int iYear = calendar.get(java.util.Calendar.YEAR);
      int iMonth = calendar.get(java.util.Calendar.MONTH);
      int iDay = calendar.get(java.util.Calendar.DAY_OF_MONTH);
      int iHour = calendar.get(java.util.Calendar.HOUR_OF_DAY);
      System.out.println(iYear);
      System.out.println(iMonth);
      System.out.println(iDay);
      System.out.println(iHour);
}My results are:
2001
11
4
21
. . . and I ran it today( 2001/12/4 ) using jdk1.3.0_02.
I checked the system clock and even used GregorianCalendar, but still ended up with the same results. Did I do something wrong?
import java.util.Calendar;
import java.util.GregorianCalendar;
public class TestCal {
   public static void main( String[] args ) {
      Calendar calendar = GregorianCalendar.getInstance();
      int iYear = calendar.get(Calendar.YEAR);
      int iMonth = calendar.get(Calendar.MONTH);
      int iDay = calendar.get(Calendar.DAY_OF_MONTH);
      int iHour = calendar.get(Calendar.HOUR_OF_DAY);
      System.out.println(iYear);
      System.out.println(iMonth);
      System.out.println(iDay);
      System.out.println(iHour);
}Michael Fiedler

Answer 1

Why not? Why was anyhthing made to count from 1?
You should not be using the value returned by .get(Calendar.MONTH) directly anyway. To get a date in a particular format you can use the Format classes in java.text.
If you wish to write your own formatters you should use the other constants of the Calendar class, like Calendar.DECEMBER (which evaluates to 11 in this implementation, it could be 12 or -8724 in others...).