I have tried to download Java-sun 1.6 with YaST2. But it dosnt work. It fulfills the download and installation, but i still dont have Java.
Im very new with open suse, so i really dont know what to do. 
Can anybody help? 
Thanks, Rune
Open a terminal and try this:
rpm -qi java-1_6_0-sun
It will tell you whether you have java installed or not, if not, as root install it using zypper:
zypper in java-1_6_0-sun
You’ll also want the browser plugin:
zypper in java-1_6_0-sun-plugin
Zypper is an excellent cli tool for package and repository management.
In openSUSE 11.2, java should install by default. Check with the rpm query command; e.g. here’s my query; revealing the default java:
john@suse112:~> rpm -qa | grep java
java-1_6_0-openjdk-plugin-1.6.0.0_b16-5.10.1.x86_64
timezone-java-2009u-0.1.1.noarch
java-1_6_0-openjdk-1.6.0.0_b16-5.10.1.x86_64
So if you absolutely need to change to sun, you would uninstall openjdk, but if you simply just want java, you should already have it.
Not to ask a stupid question, but how do you know you don’t “have” Java? With Firefox, if you go to: java.com: Java + You and click on the “Do I have Java” link, what does it post back? Also, start a Terminal window and type:
~> java -version
Does it report anything back?