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I need to extract the month from a Date object as an integer, where
month would range from 1 (for January) to 12 (for December). In the
documentation for the Data object, I see a deprecated getMonth().
Instead of getMonth, we're supposed to create a Calendar object and
use the Calendar.get(Calendar.MONTH) method.

But that method returns one of the Calendar values JANUARY,
FEBRUARY....DECEMBER. So, to get my integer I have to make a long
switch statement to figure out which of these values was returned. I
can't find any discussion of what the month values actually are.

Is there a way to shortcut this rigamarole? It seems that what should
take one line of code is taking about 40 instead.

--
Tim Slattery

Tim Slattery wrote:
> I need to extract the month from a Date object as an integer, where
> month would range from 1 (for January) to 12 (for December). In the
> documentation for the Data object, I see a deprecated getMonth().
> Instead of getMonth, we're supposed to create a Calendar object and
> use the Calendar.get(Calendar.MONTH) method.
>
> But that method returns one of the Calendar values JANUARY,
> FEBRUARY....DECEMBER. So, to get my integer I have to make a long
> switch statement to figure out which of these values was returned. I
> can't find any discussion of what the month values actually are.
>
> Is there a way to shortcut this rigamarole? It seems that what should
> take one line of code is taking about 40 instead.
>
> --
> Tim Slattery
>

Not Quite, the Calendar.get() method returns an integer:
public int get(int field)

In the case of Calendar.MONTH, remember that the month count is zero
based, so:

GregorianCalendar gc = new GregorianCalendar();
System.out.println("Month: " + gc.get(GregorianCalendar.MONTH));

Prints 10 for November if run today. This is clearly documented here:
http://java.sun.com/j2se/1.4.2/docs/.../Calendar.html
http://java.sun.com/j2se/1.4.2/docs/...dar.html#MONTH

Tim Slattery wrote:
> I need to extract the month from a Date object as an integer, where
> month would range from 1 (for January) to 12 (for December). In the
> documentation for the Data object, I see a deprecated getMonth().
> Instead of getMonth, we're supposed to create a Calendar object and
> use the Calendar.get(Calendar.MONTH) method.
>
> But that method returns one of the Calendar values JANUARY,
> FEBRUARY....DECEMBER. So, to get my integer I have to make a long
> switch statement to figure out which of these values was returned. I
> can't find any discussion of what the month values actually are.
>
> Is there a way to shortcut this rigamarole? It seems that what should
> take one line of code is taking about 40 instead.
>
> --
> Tim Slattery
>

This may be an obtuse approach, but it's tested and works:

String currentMonth = new String[] { "Jan", "Feb", "Mar", "Apr",
"May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" } [ new
GregorianCalendar().get( Calendar.MONTH ) ];

There's your 1 line of code...adjust the String array contents
to your liking.

--
Java/J2EE/JSP/Struts/Tiles/C/UNIX consulting and remote development.

Tim Slattery wrote:

> I need to extract the month from a Date object as an integer, where
> month would range from 1 (for January) to 12 (for December). In the
> documentation for the Data object, I see a deprecated getMonth().
> Instead of getMonth, we're supposed to create a Calendar object and
> use the Calendar.get(Calendar.MONTH) method.

The pragmatic solution is to use Calendar.get (Calendar.MONTH) + 1

This is conceptually wrong however (as you have realized), and even
if it produce the correct answer till the end of time, I'll consider
it a bug.

Making the months an enumeration was just one of the blunders SUN has
made with the date/calendar classes. How many pending bugs are there
out there because of the approach above but where the "+ 1" part is
missing?

For a more convenient date API you might look at the "day" module in
http://geosoft.no/software/index.html. The Day class includes (among
other useful features) a getMonth() *and* a get getMonthNo() method.