Unable to run programs in eclipse indigo on ubuntu 12.04

Unable to run programs in eclipse indigo on ubuntu 12.04

I have a Sony Vaio laptop and have installed ubuntu 12.04 on it (along
with windows 7 ) using wubi . I installed eclipse indigo from the software
centre and then installed CDT and jdt on it but the c++ programs were not
running . So i included the path for header files as usr/include for the
c++ project. That made the c++ programs run . But I still had a problem
running java programs so i followed the instructions on
http://www.n00bsonubuntu.net/content/how-to-install-oracle-java-jdk-6-7-8-on-ubuntu-13-04/
installed java 7 . (I also updated everything using sudo apt_get update ).
After I did that, I still had the same problem in the java program (while
the c++ was still in working condition ). So i went to the java project
libraries and changed it because it was showing an error in the java
system library . I then closed eclipse and tried to open it again but it
was showing errors in opening ! The error is given below :
An error has occurred. See the log file
/home/sony/.eclipse/org.eclipse.platform_3.7.0_155965261/configuration/1376044169462.log.
Please help me. I even restarted my computer after all the updates were
done, but its still showing me the same error and i really need eclipse to
run java, c,cpp and python programs etc. in college.