Hide files and folder without any software in mobile

Create any new  folder or you can use any existing folder that is to be hidden. Rename the folder to any name but with the extension of .jad like if I want to hide my images folder then I will
name it as images.jad Now create a new folder with the same name in the same directory
but with the extension of .jar So, I would create the folder with the name images.jar 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.So,my data is protected/hidden from unwanted eyes.Now ,we have to learn how to open these hidden folders.So here is the trick to open these hidden folders in Mobile phones To unhide the orignal folder you have to remove the .jar extension from the new folder and your orignal folder with all the files and with .jad will become visible....ENJOY......$