Quest Global Interview Question

1 . OOPS (be aware about Inheritance,Upcasting,Downcasting) 2 . Garbage Collection 3 . Immutable Object (String) (be aware how many objects will be created while using literal and new Keyword) 4 . Heap vs Stack 5 . Threads 6 . Collections 7 . reference variables 8 . refer interview questions in javatpoint 9 . Vector vs SynchronizedList