Pergunta de entrevista da empresa Future Group

1. OOps concept 2. what is abstraction? 3. abstraction vs inheritance? 4. what is static? 5. difference between static variable vs instance variable? 6. hashtable vs hashmap? 7. what is synchronous? 8. in search operation which is good arraylist or hashmap and what will be its complexity? 9. what is basic feature of set? 10. how to use caching mechanism in jsp servlet? 11. what is config? 12. what is container, config and context? 13. is tomcat container or server? why? 14. why do we use hibernate? 15. how much time you will take to learn webservice?