How to instal games or software in samsung java mobiles (L700,U800...)

To instal games or java application software (Only .jar and .jad) in your Samsung java mobile ( L700 , U800 etc.) you need a data cable for your mobile. If you had a data cable then first you have to go to the USB SETTINGS ( In the phone's menu settings) of your mobile. In the USB SETTINGS choose ASK ON CONNECTIONS. After it come on the desktop of your mobile and then connect the data cable to your mobile and PC .
On connecting your mobile ask you for type of connection.
Choose MEDIA PLAYER.
Wait until the PC detects your phone.
After this an automatic option appear. Then select OPEN THE DEVICE TO VIEW FILES.
You now see Images, Other files, Sounds, Videos folders.
Create a new folder and name it
'Games'
Put any game you want to install in that 'Games' folder Firstly make sure you have the *.jar and
*.jad files for each game, if you don't have the *.jad file, you can download a jad creator pretty easily, just type it in Google. Secondly each game has to be in it's own folder, if you just dump all the *.jar and *.jad files directly into the 'Games' folder only the first game installed will work (Poorly too).
Unplug the phone

Now on the phone dial the code:

*#6984125*#

Select 'Internals' (Number 4)
It will ask for a master key it is:

*#9072641*#

Select 'Storage settings' (Number 7)

Update Java DB (Number 2)

Now restart your phone. 
The games should now be installed with no problems, I know it's bit repetitive but this has worked the best for me.
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