Following found posted in the net,

Java support

To add support for the Java language both for standalone applications and as a browser plugin for Web applets, go into YaST, then select Package Management. In the Search box, type in sun and click Search. A bunch of packages will show up in the right-hand pane. Click the checkbox next to the following packages:

* java-1_5_0-sun
* java-1_5_0-sun-alsa
* java-1_5_0-sun-jdbc
* java-1_5_0-sun-plugin

There is no harm in selecting all of the java-1_5_0-sun packages (you'll notice that there are a few more that weren't selected), but they are not necessary for running Java programs. If you're a Java programmer, of course you'll want at least some of the other packages. When you're done selecting them, click on Accept. When it's done installing, click on Finish in the popup window to go back to YaST. Your computer will now be able to run Java programs and applets.