problem running eclipse on ubuntu?

Question

I downloaded eclipse on ubuntu. But when I run it it show following error.

A Java Runtime Environment (JRE) or Java Development Kit (JDK)
must be available i         


        

Answer 1

If you allready installed java** you need to add the Java-Path to your eclipse.ini

in my case it's located at:

/usr/lib/eclipse/eclipse.ini

there you need to add direct under the "openFile" statement, where you replace the path with your java path:

-vm
/usr/lib/jvm/java-7-openjdk/bin/java    //!replace with your path to java!

** check wether java is installed by typing the commands

java -version 

or

javac -version

If you are sure that java is installed, but it's not found you may have multiple versions installed, check that by:

sudo update-alternatives --config java

and select installation first