Questions posées lors d’un entretien d’embauche pour Java Software Developer chez Unisys

I cleared all rounds.The hr called me for salary discussion and sent me the offer letter after I sent all required documents. I accepted the letter .But after 3 weeks , another person called me and told that the business operation for which I interviewed is on hold.So they can't process the profile.Dont join this company.They can fire you any moment.i just looked at their revenue and they are going in loss for last 12 years.pathetic organization.