typically questions consist of book defination of class and object, polymorphism , over riding etc
They are interested in knowing whether you know well enough what is class and what is object. Try to give real life example
A class is the blueprint from which individual objects are created. For example there might be a class for chairs and every chair created from this class is an object. Every chair object is unique. polymorphism - one interface can be implemented in several ways. For example a list can be implemented using an array or using linked objects. overriding - a method in the subclass with the same signature overrides the method in the super class.
28 Oct 2011