JAVA SWT，实现多国语言切换

//用的是swt 选择一种语言后 系统重新启动 起动后的画面的语言变化

private class  ComboSelectedAction extends SelectionAdapter {
        //----------------------------------------------------------------------
        /**
         * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
         */
        //----------------------------------------------------------------------
        public void widgetSelected(SelectionEvent e) {
            
            String selectText = languageCombo.getText() ;
            if(selectText.equals(LANG_ENGLISH)){
                //keepLang = "en_US";
                keepLang = Locale.ENGLISH;
            }else if(selectText.equals(LANG_JAPANESE)){
                //keepLang = "ja_JP";
                keepLang = Locale.JAPANESE;
            }else if(selectText.equals(LANG_KOREAN)){
                //keepLang = "ko_KR";
                keepLang = Locale.KOREAN;
            }else if(selectText.equals(LANG_CHINESE)){
                //keepLang = "zh_TW";
                keepLang = Locale.TRADITIONAL_CHINESE;
            }
        }


    protected void okPressed() {
        keepLang.toString();

//当ok按钮按下时，取得的语言类型保存到文件中，然后系统重新启动，但保存的文件里面应该存入哪些信息呢？？？
//properties文件名分别是messages.properties，messages_ja.properties`messages_ko.properties,messages_zh_TW.properties

      
        //AplMain.writeSystemProperties( setFilePathEXE() + INI_FILE );
        
        //AplMain.restart() ;
        
    }