Pergunta de entrevista da empresa Vakrangee

Round 1 1.difference between compiler and interprer ? 2.how you use multi-threading in project ? 3.collection heierachy 3.difference between arraylist and Vector ? 4.top class in exception ? 5. theread life cycle 6.difference between sleep() and wait() ? where we use wait() and sleep() ? 7.what are type of design pattern ? write singleton class program ? why we use singletonton pattern ? Round 2 1.which project your are working ? 2.SDLC life cycle ? 3.how product work ? 4.what is you current role in company? 5.what is processed in your company 6.what type of document you prepare ? 7.why you want leave current company ? 8.whom you report ? 9.what kind of work you do ? Round 3 write soap web service to encrypt file and send it's content in response? Round 4-HR 1.what is you salary expectation ? 2.why you want join this company ? 3.why your leaving your current company ? 4.are you able to join within 30 days ?