user defined programs at the stratup of system
 

1-i wanna make myown program execute at the startup of Debian,at a predifine time(daemon)

show me an example for making a user defined programs executing at the startup itself.
explain in detail

Can not show you any examples.
You can edit /etc/rc.local file to add the daemons you want to start at boot.

And be more soft while asking for help. You can not just order people to do what you want. Be mild. And give more information of what you want and what you are trying to do to get more precise help.

:-)
 

I'm with Chaitanya, ordering people around isn't a way to get what you want.
There's a lot of places you can put the executable to run at startup, here's a link that details the boot sequence....

http://oldfield.wattle.id.au/luv/boot.html

It shows you what files get run in what order-you can pick where it goes. Just add 'sh *path to my executable*' somewhere in there, you do need to wait until everything you need is loaded (drivers and such).