[Jython-users] Fwd: Java printf

[John M. <joh...@ya...>]

Any comments on the following.  I'm translating Jython code to Java and
I need help formatting numbers.  Is the printf-style formatting code in
Jython available on a stand-alone basis?  Any suggestions?



--- John Mudd <joh...@ya...> wrote:
> Date: Sat, 24 Feb 2001 19:09:38 -0800 (PST)
> From: John Mudd <joh...@ya...>
> Subject: Java printf
> To: xxxxxxxxxxxxxxxxxxxxxxx
> 
> This is the best printf answer I've seen so far.  See FAQ answer down
> below.
> 
> Hmmm... I wonder what others on my project use??  Hmmm... Jython has
> the print format capability built-in.  It looks like it's in
> org/python/core/PyString.java.  But I can't just steal that code...
> even though I'm free to use Jython as a whole?  Hmmm...  or can I?
> 
> 
> The Lava jprintf license is only $100 for source.  The web page says
> it's "the best".
> 
> I downloaded the horstmann code.  Here's a sample from Jython
> interpreter sesion.  Good enough but...  [[[ Permission to use, copy,
> modify, and distribute this software and its documentation for
> NON-COMMERCIAL purposes ]]].  Ugh... I technically can't use it.
> 
> 
>  Linux: /home/mudd/misc[1]  jython
> Jython 2.0 on java1.2.2-RC2 (JIT: javacomp)
> Type "copyright", "credits" or "license" for more information.
> >>> import Format
> >>> Format('%05d').form(123)
> '00123'
> >>> Format('------>%05d<-------').form(123)
> '------>00123<-------'
> >>> 
> 
> 
> Oh!  Try to format stuff using native Java crap.  This might be the
> best example of weakness in Java.  Geez!
> 
> 
> 
> 
> ---
> 
> FAQ:
> http://www.landfield.com/faqs/computer-lang/java/programmers/faq/
> 
> ---
> 
>  13. (Sect. 7) How do I do formatted I/O of floating point numbers?
> 
>      [*] Use the class java.text.NumberFormat.
> 
>      Or use http://www.newbie.net/sharky/lava/. Or use Cay
> Horstmann's
>      http://www.horstmann.com/corejava/Format.java
>      Although many utilities claim to handle all varieties of C's
> printf, as
>      far as has been found, this is the only one to correctly handle
> the
>      equivalent of %e in printf.
> 
>      See also the standard packages java.text.DecimalFormat and
>      java.text.NumberFormat
> 
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