i want to know how i can put java applications on SGH-D840
can somebody help me PLZZZZ. . . . . .

Always use the cable and software that came with your phone for installing games. Your games need to have a resolution of 320x240. So most of the latest phones software and games for phones such as D900 and like will work fine on your device. Once installed games and applications can be found in fun box. Hope this helps.....

so it cant be sent by bluetooth. . . .?
because its not my mobile i want to give the game to a friend. . . .she must have it on pc and then use the cable ?
and thank you soooo much for your help. . . . .

It can be set by bluetooth but you will have to pair the phone with the computer. Once sent the handset should prompt you to install. If you want to the send it to a friend then take note of the save location and send it from there.