A JRE or JDK must be available in order to run Eclipse

Hello Colleagues ,
I have started with the SAP HANA Basics course offered at OpenSAP .
I am at my first steps for Installing Eclipse .
Please refer to the following link :-
http://hcp.sap.com/developers/learningtutorial111.html
After Downloading Eclipse , i tried to ran the exe file .
"I got an error A Java Runtime Environment(JRE)  or Java Development Kit(JDK)
must be available in order to run Eclipse .No Java Virtual Machines were found after searching the following locations".
Please let me know if I am missing something ?
Regards
Nitin

Thanks for all the Replies to my original post
When u start Afresh to Learn SAP HANA and installing the tools on 64 -bit windows  :-
Step 1 : Install JDK or JRE .
I found a link to share :
http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
Step 2 :
Once you are done with installation, set the env variables. Right click My Computer> properties> Advanced settings->Envoirmental Variables
Add two system variables:
E.g. if you have installed JDK . Its rests in the following path
JAVA_HOME: c:/program files/java/<jdkfoldername>
CLASSPATH: %JAVA_HOME%/bin
In My case
Step 3 : Download and Unzip
sapjvm-7.1.018-windows-x64.zip
Step 4 : Download and Unzip neo-javaee6-wp-sdk-2.34.16.1.zip
Inside your Folder DRIVE:\<Folderpath>\eclipse-jee-juno-SR2-win32-x86_64\eclipse
eclipse.exe file would be there run it .
Create workspace and start using .
Cheers
Nitin

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