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what is the java settings on opensuse

i am new to linux also opensuse11.2 recently i am install this version.
i am java programmer. so i want install eclipse on linux. so i want to know that how to set a environment variable of java on linux and eclipse

In addition to know how to set an environment variable in general you should know, there is a set of scripts in OpenSuse to change all needed settings to use a specific Java version.

In a command shell, being root user, you get a list of already installed Java VMs with command

Code:

update-alternatives --list java

Setting all PATH and CLASSPATH variables to use another of the installed VMs is done with

Code:

update-alternatives --config java

You can install different VMs from OpenSuse build server. I don't know, if the "update-alternatives" script works with a Java VM not installed through the OpenSuse packet management.