Locale.setDefault

Sets the default locale for this instance of the Java Virtual Machine. This does not affect the host locale. <p> If there is a security manager, its <code>checkPermission</code> method is called with a <code>PropertyPermission("user.language", "write")</code> permission before the default locale is changed. <p> The Java Virtual Machine sets the default locale during startup based on the host environment. It is used by many locale-sensitive methods if no locale is explicitly specified. <p> Since changing the default locale may affect many different areas of functionality, this method should only be used if the caller is prepared to reinitialize locale-sensitive code running within the same Java Virtual Machine. <p> By setting the default locale with this method, all of the default locales for each Category are also set to the specified default locale.

@throws SecurityException if a security manager exists and its <code>checkPermission</code> method doesn't allow the operation. @throws NullPointerException if <code>newLocale</code> is null @param newLocale the new default locale @see SecurityManager#checkPermission @see java.util.PropertyPermission