This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Help with what? Where are you stuck? There are many ways to upload files: FTP, HTTP, WebDAV, custom solution using TCP stream, ... Unless you state specifically what you're trying to accomplish, and what you have so far, this questions is way too broad to be answered in a forum like this.