What is bootstrap, extension and system class loader?
Can constructors be parameterized?
Define exceptions?
Can you explain primordial class loader?
What's the main difference between arraylist / hashmap and vector / hashtable?
What is difference between static and non-static fields of a class?
What is the practical implementation of inner classes?
How do we implement serialization actually?
What is serialization? How do we implement serialization actually?
What is unified modeling language (uml)?
What is the difference between oop and sop?
Differentiate between an abstract class and an interface?
What is a subclass?
What is the difference between an error and an exception?
Differentiate between a class and a method.