Perguntas de entrevista de vagas de Java Developer da empresa TranServ

First was telephonic round. Followed by one written test and then 2 rounds of Face to Face interviews. Finally HR round. What disappointed me is that after clearing all rounds of interview they told they cann't pay me what I am asking for. Its really very bad because if they disn't had budget they shouldn't call me. I felt my 2 days where wasted. HRs should really confirm before. I could have saved my 2 days may be in other interviews.