how can i use the wifi on the blackberry 8220 on the java applications?

[Prangster2K9]

when i go to an application for example internet radio, ebuddy messenger and facebook application etc they say 'connection failed check that the internet connection is allowing java applications

[CrackBerry Addict]

This will depend on if the application supports Wi-Fi or not. Some applications require a data plan and don't use Wi-Fi only. I know for a fact that the Facebook application requires a BlackBerry data plan in order to operate properly.