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i want to modify a bit of interface using netbean's form designer.

Yup I have the source codes. The extensions are .java
I compiled these source code using command prompt in windows OS as:

javac filename1.java
javac filename2.java
..so on

then i run the...

Here is the thing, i have a full working java gui program made up from 4 different java codes.

i want to modify a bit of interface using netbean's form designer. How can i achieve this?
i have...

Alright I succeeded in viewing/printing the jpg file in hex form(actually I converted hex from binary form)
Anyways now I am looking for a way to retrieve the jpg image file back from hex values.......

Yes how can I do that?

I want to edit jpg image file in binary form, so that I can can modify the LSB to make least difference with the original image.
Stenography stuffs...
Please help

Sorry my mistake! I shouldn't have written 'encryption', instead I should have written Hiding.
No encryption, just writing the bits of file-2 to image file using LSB so that there is negligible...

I am trying to make a GUI Java Program, where a file will be hidden inside an image file.
So I have a rough idea which is as follows:
Encryption

Read an image file and a file(say file-2)
...