Veeva Systems QA Automation Engineer interview questions

Veeva Systems Interview Questions Can I define main method without using static. What is the error Why is collection different from Map Is HashMap threadsafe or not What is Iterator? In what direction are elements retrieved? What if elements needed in reverse order? List Iterator What is testrunner jn cucumber what gets executed even before hooks when you click on run Code snippet what js output List a = Arrays.asList(1,2,3); a.add(6) -> compilation failure asList is fixed length array list Exception class vs Throwable Interface Finalize keyword -> function of garbage collector -> which memory is used throw new Exception User defined exception creation scenario where finally code will not be executed Inserting and Deleting is frequently done what collection is used and why Stale element exception Program {3,7,8,1,8,7} what is the first repeated character -> ans is 8. From left to right 8 is repeated after 1 first before 7. So ans is 8 Object class and methods abstract final method () - is it possible in java Can we have multiple inheritance in java ? if not why? what happen if class a extend b, c what is error Can interface implement another interface? what happens Can interface have class within itself? what happens what is enum? is enum method or collection or keyword? default polling time in selenium Do implicit wait and explicit wait have same polling time what is headless browser? why do we execute what do you want to change in your framework explain framework architecture Further rounds will test on multi threading and java 8