I think stock exchange one can make money in the long run but in gambling most likely every one will lose money. What you guys think?
Is there a difference? You mean is there a similarity? Buying a stock share means investing a company. You can't compare this to gambling. (Unless if you don't know what you bought, but if that's the case you're already fucked up anyway.)
Do your own research and invest for right companies, you'll be safe.