image uploading problem in Java

Hi,

I have an image uploading problem.
The entire code is working in my local system.
But when i upload the code, it is not working from the Linux server.

The code I have given is RenderedImage image = null;
InputStream is = new BufferedInputStream(new FileInputStream(f));
image = ImageIO.read(is); OutputStream out1 = new BufferedOutputStream(new FileOutputStream(file));
ImageIO.write(image,"png",file);

Should I give any permission to upload the image file?

Can anybody please respond as soon as possible.

Thanking You

Linux is much pickier than Windows when it comes to permissions.

Make sure the folder you are uploading to has the proper write permissions.
A common solution is to change ownership on the folder to the same user that the server runs as.
Alternatively, you could give write permissions to "other"; this could be considered a security flaw.

I've had a similar problem. I work locally under Windows, the server my web app is on, is a Linux server. Whenever I upload .class files, I must not forget to change the permissions of these .class files. I always have to add the execute-permission for the user, group and other.
So, take a look at the rwx or read-write-execute permissions of your .class files. Without the x for execute, the .class file might give you problems.