Virtualbox Ubuntu guest - accessing shared folders

Launch guest OS in Virtualbox and add a new shared folder, we'll call it Files.

Open the terminal and create a new folder:
sudo mkdir /mnt/Files
Mount the shared folder:
sudo mount.vboxsf Files /mnt/Files/

Install Sun Java in Ubuntu 10.04

http://www.ubuntugeek.com/how-install-sun-java-runtime-environment-jre-in-ubuntu-10-04-lucid-lynx.html

sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
sudo apt-get update
sudo apt-get install sun-java6-jre sun-java6-plugin sun-java6-fonts
java -version
If necessary, change which Java implementation is selected
sudo update-alternatives --config java