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You could use an Applet in a web browser for a file manager - sites like photobox.co.uk do that. If you search for "applet servlet communication" you'll find some sites that explain what needs to be...

Post your exceptions. You are running this as an applet in a user browser? Where do you expect the directory to be created - on the web server, or on the user's PC? If the former, you need something...

Never, ever, ever use string concatenation on file paths.

Create a File object that represents the user dir, then use the File(File, String) constructor to create a File object that represents a...