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How to change  language dynamically?

khoama asked
Last Modified: 2013-12-22
Internationalize in Java.

Can we:
- Change all the swing components in runtime (using properties file and Locale)...
- With out rewrite every component to extend Swing components (to assign a resource key for it) and then use a recursive function to process every component to change it text? Like :

public void autoUpdateResourcesBundle(){

private void autoUpdateResourcesBundle(Container pContainer){
      Component lComponent [] = pContainer.getComponents();
    if(lComponent!=null && lComponent.length>0){
          for (int j = 0; j < lComponent.length; j++) {
              if (lComponent[j] instanceof PLabel && ( (PLabel) lComponent[j]).resourceKey!=null) {
                  ( (PLabel) lComponent[j]).setText( getResourceString(( (PLabel) lComponent[j]).resourceKey) +": ");
            }/*T&#432;&#417;ng t&#7921; cho các components khác*/
            else if(lComponent [j] instanceof Container)
                  defaultUpdateResourcesBundle((Container)lComponent [j]);

I code a demo application to change the language in runtime.2 buttons to switch between 2 language and execute this function :

private void changeLanguage(String pNewLanguage){
            Locale lLocale = new Locale(pNewLanguage);
            ResourceBundle lResourceBundle = ResourceBundle.getBundle("language", lLocale);


but I encountered an exception  when one button was clicked:

Exception in thread "AWT-EventQueue-0" java.util.MissingResourceException: Can't find bundle for base name language, locale vi

Any solution is greatly appreciated.

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