Re: DecimalFormatter.format(object) gives strange results on i5JVM1.4Classic

Hi Neill,

The 32 bit version makes a lot of sense to me, if it fits the application. At this point though, I only have the theory. If I can make my client see the logic, I plan to move reporting from WebSphere proper to a separate process and expect to use the 32 bit JVM. I should have more to say about it after that. Bill has already pointed to the redbook.

The cleanest way to control the JVM used is to install just one. That's not always possible because of various dependencies.

how to control which jvm is used when calling from RPG.

Personally, I have never called Java from RPG and don't expect to unless I get roped into some client's existing code. When I first started with Java in 1996-97, I looked over JNI and pretty much determined that there were few cases where it made sense in a business context. I've seen none so far, although clearly that's my own professional opinion. Others differ; see all the issues on this list calling Java directly from RPG (or other languages.)

But to answer your question, you use the environment variable QIBM_RPG_JAVA_PROPERTIES.


Joe Sam

Joe Sam Shirah - http://www.conceptgo.com
conceptGO - Consulting/Development/Outsourcing
Java Filter Forum: http://www.ibm.com/developerworks/java/
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----- Original Message ----- From: "Neill Harper" <neill.harper@xxxxxxxx>
To: "'Java Programming on and around the iSeries / AS400'" <java400-l@xxxxxxxxxxxx>
Sent: Saturday, August 16, 2008 3:23 PM
Subject: RE: DecimalFormatter.format(object) gives strange results on i5JVM1.4Classic

Brilliant, thanks very much!! I thought I was going mad.

I'm actually calling this java from RPG, we don't seem to have 1.5 installed
on our box. Any advice on whether or not to use/instal the 32 bit version of
the JVM and how to control which jvm is used when calling from RPG.

Once again thanks for your help

Neill

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Joe Sam Shirah
Sent: 16 August 2008 20:03
To: Java Programming on and around the iSeries / AS400
Subject: Re: DecimalFormatter.format(object) gives strange results on i5
JVM1.4Classic


See:

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4018937

Wasn't corrected until 1.5. Yet Another Reason to move to at least WAS
6.1 and dump JDK 1.4.2 altogether.


Joe Sam

Joe Sam Shirah - http://www.conceptgo.com
conceptGO - Consulting/Development/Outsourcing
Java Filter Forum: http://www.ibm.com/developerworks/java/
Just the JDBC FAQs: http://www.jguru.com/faq/JDBC
Going International? http://www.jguru.com/faq/I18N
Que Java400? http://www.jguru.com/faq/Java400

----- Original Message ----- From: "Neill Harper" <neill.harper@xxxxxxxx>
To: <java400-l@xxxxxxxxxxxx>
Sent: Saturday, August 16, 2008 9:13 AM
Subject: DecimalFormatter.format(object) gives strange results on i5 JVM
1.4Classic

When I run the following in WDSC and netbeans I get the result I would
expect. However when I run it on the i5 JVM 1.4 I get an unexpected
result.
I'm probably missing something really obvious, any help would be
appreciated.



public static void main(String[] args) {



BigDecimal num = new
BigDecimal("123456789987654321123456789987");

DecimalFormat df = new DecimalFormat();

df.setMaximumFractionDigits(99);

df.setMaximumIntegerDigits(99);

df.setMinimumFractionDigits(3);

df.setMinimumIntegerDigits(3);



df.setGroupingUsed(true);

df.setGroupingSize(3);



String s = df.format(num);



System.out.println(s);





}



Result in WDSC and Netbeans s =
"123,456,789,987,654,321,123,456,789,987.000"



Result when run on i5 s = "123,456,789,987,654,321,123,300,000,000.000"



Thanks for taking a look.



Neill

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