> can we run a run() method with out using a start() method in a program?
Yes, but it won't work the way you expect it to work.

Calling the run() method directly would be like calling a normal method. No thread of execution is created, no concurrency. On the other hand, calling the start method spawns a new thread of execution which can execute concurrently with other threads by executing the run() method.

it will work!!! but only as a method, not thread. It won't run simultaneously

If you read his thread,
that is exactly what he said.

;-)

haha sorry, I just realized that once I re read it again... my bad... XD