Hi Mr. Siggy
Thanks for your reply.
i imported ecj\ec files into a new project in eclipse.
when i tried to run it, i got the below error in eclipse console and command prompt too.
"Error: Could not find or load main class ec.Evolve"
but i was able to clear this error now. for this what i did was deleted ".metadata" folder and created a new project again and imported the ecj\ec classes. i m able to run the tutorial1 using eclipse. but the problem still persists if i run through command prompt. please see the below screenshot.