Can't, most phones don't allow java.
Yes
How do you enable JavaScript on the gusto 2
you just keep pressing "back" until it wont go any further. that menu is idle mode
Java
It's used for uploading java games from you'r pc to you'r samsung mobile.
To enable JavaScript on Samsung chat mobile it will be necessary to download an application specifically for that purpose. The application downloaded must be specific to the operating system of the Samsung phone.
su - yum install java-1.6.0-openjdk-plugin
Basically that is telling you to enable javascript in your browser. Come back with your browser name and someone could tell you how to enable javascript in it.
how to install a java app on samsung b2100
Samsung tablet
by bluetooth cable
To enable Wi-Fi, you need a wifi receiver chip what is built in only the Samsung GT-S5230W