Re: [Jython-users] using java.text.DateFormat

[Brian E. <bm...@vi...>]

Couple of things -- DateFormat is abstract and format is an instance 
(not class) method.  Jython reports it as requiring 2-3 args because the 
first arg is the implicit "this".

SimpleDateFormat is instantiable and you'll need to create an instance 
of it to call format:

 >>> from java.text import SimpleDateFormat
 >>> from java.util import Date
 >>> date = Date()
 >>> date
Wed Feb 20 16:05:04 CST 2002
 >>> sdf = SimpleDateFormat()
 >>> sdf.format(date)
'2/20/02 4:05 PM'

The Python documentation states strptime uses a default format of |"%a 
%b %d %H:%M:%S %Y"| (identical to ctime's formatting), so, while Jython 
doesn't have strptime, you could use strftime with that format (or ctime 
itself):

 >>> import time
 >>> time.strftime("%a %b %d %H:%M:%S %Y", time.localtime(time.time()))
'Wed Feb 20 16:17:28 2002'
 >>> time.ctime(time.time())
'Wed Feb 20 16:20:26 2002'

Mike Hostetler wrote:

>Maybe I'm doing something dumb here -- I dunno.  I'll honestly admit that
>I know more about Python than Java . . 
>
>I'm wanting to emulate something like the time.strpformat in the
>CPython/Unix library.  The closest I've found is the java.text.DateFormat class
>in the Java standard library.  I think I'm using it right, but I get a
>very strange error:
>
>>>>from java.text import DateFormat
>>>>date
>>>>
>'Wednesday February 20 12:06:17 CST 2002'
>
>>>>t = DateFormat.parse(date)
>>>>
>Traceback (innermost last):
>  File "<console>", line 1, in ?
>TypeError: parse(): expected 2-3 args; got 1
>
>According to the Java API docs, DateFormat.parse only requires 1-2 args:
>
>parse
>public Date parse(String text)
>           throws ParseException
>
>parse
>public abstract Date parse(String text, ParsePosition pos)
>
>Anyone have any suggestions??
>
>-- mikeh
>
>
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