first download the LINUX version of the JDK from http//:java.sun.com
it is the file
First get a terminal window: right-click in the file manager "Open new terminal here", e.g. in the "My Documents"
Now you type
then start the installation by typing
hope this helps!
You might also want to check out then NetBeans IDE from www.netbeans.org. works fine my the Acer One 110L