Calendar Is it a bug

Question

Our application was working fine till recently before upgarding to JDK1.3.1_03. I am having problem with Calendar Object.When I set a month, I do not seem to be getting the correct output
I am pasting the sample code below.
Calendar calendar=Calendar.getInstance();
calendar.set(Calendar.MONTH,3);
System.out.println("date is "+calendar.getTime());
I would expect a Date with April as month. The output is
"date is Wed May 01 11:12:01 PDT 2002" which is not correct.
I tried with
Calendar.set(Calendar.MONTH,5); and the output is
"date is Mon Jul 01 11:17:51 PDT 2002"
However with
Calendar.set(Calendar.MONTH,4); and the output is
"date is Fri May 31 11:19:40 PDT 2002"
The problem appears to be confined to even months such as Feb,Apr,June etc.
Is somebody else is facing this problem? Should I report this as a bug?
Any Pointers to this will be appreciated.
Thanks

Answer 1

Thanks for the reply. This is done programmatically.
Imagine you are getting a date object from database and I need to display this on a calendar bean in terms of Month,Year and Date fields. All I do is create a Calendar instance and set it's date to be this date object and pass this to the calendarbean which will pass the month value to month bean,date value to date bean and year bean to year bean for their display .Individual beans update their values by setting their calendar objects.The probem comes when month bean gets value of 2 for the month and it is unable to show the correct month.
This piece of code pasted is for example only not be used literally.
I also tried using your suggestion by calling
Calendar calendar=Calendar.getInstance();
calendar.set(Calendar.MONTH,Calendar.APRIL);
System.out.println("date is "+calendar.getTime());
and the output is
"date is Wed May 01 12:01:19 PDT 2002"
Hope you understand.