Perguntas de entrevista de vagas de Java Software Developer da empresa MAQ Software

I attend walk-in interview in wittybrain Interview process was very slow There was 4 round first of all a written in which aptitute simple question given me for solve and after 30 minute they told me my result will be send my mail and it take 2 days after that they called me for technical round and it's going approx 90 minute and then they told me you are selected for second technical round and called me after 2 days , in second technical round they asked me java ,os ,DBMS,c ,c++ ,SQL,advance java and after 3hours of interview they told me I am not perfect for company that was very disgraceful I never thought that