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OOP Interview : Object Oriented Programming Interview Questions

If you want to work in the ground of Information Technology (IT); one of the most vital concepts you are likely to be familiar with is OOP (Object Oriented Programming). Yet, the practical interview can be intimidating for even the most experienced IT proficient. To assist you to prepare better for just that, you must know how to present your answers in the best doable way, to astonish the interviewer.
Get yourself ready to prepare answers to some of the basic and most usual asked questions on OOP. Following are some questions you must prepare before you go for an interview

·         Definition of Object Oriented Programming (OOP)
·         Define class
·         Define object
·         Difference between abstraction and encapsulation
·         Define polymorphism
·         Define Inheritance
·         Give some examples of token
·         What is destructor
·         Define Keywords?
·         Define Super Keyword
·         What is Final Keyword?
·         Define Access Modifier
·         Describe friend function
·         Define Persistence & Collaboration
·         Define “ THIS” pointer
·         Tell about the operators that cannot be overloaded
·         Define basic features of OOP
·         Differentiate between “array” & “collection”
·         Define collection and generics
·         Is it feasible for a class to inherit the constructor of its base class
·         Tell the index value of first element in array
·         What is the keyword used for overloading
·         Define various types of constructors
·         Define tokens
·         What is the difference between overriding and overloading?
·         Define different types of arguments
·         Define Information Handling
·         Advantages of OOP
·         What is enumeration
·         Explain that .NET support multiple inheritance with reason
·         Define features of interface
·         Define Delegate
·         Can we use ‘throw’ exception to raise an exception?
·         What is Modularity?
·         Define abstract class and its characteristics
·         Explain Hashtable
·         Define sealed modifier?
·         Define ternary Operator
·         Define composition and its purpose
·         Define static constructor
·         What is Queue
·         Define stacks
·         What is an event
·         Define Structures
·         Differentiate between new and override?
·         Explain run time polymorphism
·         Define copy constructor
·         Name the concept of OOP which is used as reuse mechanism?
·         What are manipulators?
·         When it is needed to make an abstract class?
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