HIDE DATA IN MOBILE(without software)

Almost most of them who use mobiles have their own personnel files and we need to hide it from otheres.for this we always use sofftwares to hide data.but here i present a new technique to hide data in JAVA enabled phones without using a
software.this trick will work in all JAVA enabled phones(Nokia,Samsung,LG,Motorola...)

STEPS

1. Choose the folder to be hidden.
2. Rename the folder with the extension of .jad like if I want to hide my images folder then I will name it as IMAGE.jad
3. Now create a new folder with the same name in the same directory but with the extension of .jar (eg: IMG.jar)
4. And thats it!! My orignal images folder which has been renamed with .jad gets hidden and only folder with.jar extension is visible which is empty.
5. Now only we can see that file by just renaming the file with extension .jar