The Tutorial shows you in Easy-Steps How to Install and Getting-Started with the Latest Official Java Oracle-Sun JDK 7 SE x64 Release on a Linux OpenSuse 11-12 and Milestone KDE4 64-bit Desktop.
Especially relevant: At the Same Time I’m also illustrating here the Easiest Way of Installing the New Downloaded .rpm Packages with Dependencies on openSUSE KDE4 Desktop :)
After Installing you will need to Use the update-alternatives Tool to Update your System Java to Sun SE JDK 7.
To the Post Bottom you Find Link to Guide on Installing Tomcat 7 Java Web-Server for OpenSuse Linux.
The Screenshots of Installation Correspond to the Install on a OpenSuse 12 KDE Desktop but the Procedure for GNOME, XFCE… Should be Near Identical.
So Take the Time of Carefully Reading and Executing the Instructions Contained Here and All should Work Like a Breeze :)
