is it possible to change jvm locale by using command line parameters ?

[raminaa niilian]

Hi
Thank you for reading my post.
How i can change the locale that a swing application is going to run by using runtime parameters ?

for example , my application is a jar file which has localization (using some .properties files)
Now i want to change the locale by passing some parameters to jvm
i used a batch file to run my application , something like :
java -jar ramina.jar

Now it just look at system locale , and execute the application based on system default locale , how i can change the locale of java when i call it.

Thanks

[Jeff Albertson]

Changing the default Locale is easy:

Locale.setDefault(myLocale);

I don't know of a system property set aside for this, like -Djava.util.Locale=en_CA, but you could define one if you wanted to:

import java.util.*;
 
public class Test {
    public static void main(String[] args) {
String s = System.getProperty("java.util.Locale");
if (s != null) {
String[] parts = s.split("_");
Locale locale = null;
if (parts.length==1)
locale = new Locale(parts[0]);
else if (parts.length==2)
locale = new Locale(parts[0], parts[1]);
else if (parts.length==3)
locale = new Locale(parts[0], parts[1], parts[2]);
 
if (locale == null)
System.out.println("ignored: " + s);
else
Locale.setDefault(locale);
}
System.out.println(Locale.getDefault());
    }
 
}

[Jean-Francois Briere]

This is an example:

java -Duser.country=ES -Duser.language=es -Duser.variant=Traditional_WIN -jar ramina.jar

Regards

[Srini Naga]

Thanks! That was very useful.

[Campbell Ritchie]

You're welcome

Nice to know you found something in a 3 year old thread. Have a quick look at this FAQ, however.

Welcome to JavaRanch, anyway

[Maxim Veksler]

Try a 4 years thread, and yes - Thank you!

[Campbell Ritchie]

Welcome to the Ranch

We have downgraded that FAQ because it is becoming obvious how useful old threads can be