If you're not installing DocCare full package, then you should download and install JDK/JRE6.0 which fits your operation system。
First, you should setup JAVA_HOME environment parameter. The value of JAVA_HOME should be the installation path of JDK/JRE6.0.
On Desktop of Windows platform, right click on [My Computer] icon, select [Properties] in the Pop-up menu, then select [Advance] tab. In the [Advance] tab, click [Environment Variables] button and click [New] button to create a system variable named JAVA_HOME. See figure below:
Click [OK] button to save JAVA_HOME environment variable.
To check JAVA_HOME, you can open Windows console, then input: %JAVA_HOME%\bin\java -version
and press Enter.
If your JAVA_HOME is correct, you can see the version of you JDK/JRE, similar as the figure below:
If you are on Unix/Linux platform, you can edit/etc/profile and add the following content as listed below:
export JAVA_HOME=/opt/jdk1.6.0_18 (/opt/jdk1.6.0_18 is the installation path of JDK)
After saving the configuration, you can input the following command in a shell window.
$JAVA_HOME/bin/java -version
If your JAVA_HOME is correct, you can see the version of you JDK/JRE, similar as the figure below:
