![]() ![]() It is a concept of assigning behavior in a subclass to something which has already been declared in the main class. Polymorphism in simple words means more than one form. What is Polymorphism ? How is it supported by C++ ? It is like blueprint which describes all the details of its object. What is a class ?Ī class in OOPs paradigm is a template that represents the Objects. State typically represents data, behavior represents methods and the identity is a unique id associated with object. It is an instance of a class.Īn Object has its own identity, state and behavior. Data hiding : We restrict the access to members of an object bu using different levels like Public, Private etc.Īn object is a real world entity.Bundling data and method together : We bundle the data and its associated methods into one unit.It has levels such as Private, Public, Internal, Protected and Protected Internal. We can restrict the hidden data to class members. It contains the hidden data for that object. This concept is actually an attribute of the object. It is a feature that provides data binding. What are some of the main features of OOPs / What are basic concepts of OOP ?Įncapsulation in OOPs paradigm is very useful concept. OOPs paradigm works great with relatively big applications. It allows developers to change the representation by keeping the methods same. Object Oriented Programming has better maintenance as it has concepts like Encapsulation.The code written in OOPs paradigm is more understandable.The main OOP feature is that the code is better manageable.This is because it has many advantages over traditional procedural programming. Nowadays, mostly all programming language are working in OOPs paradigm. ![]() Object in this paradigm can be a real life entity. In OOPs, the complete application / program is considered as a group of objects which are communicating with each other. OOP stands for Object Oriented Programming. What is Object Oriented Programming / OOP? ![]() So let’s get started : OOPs Interview Questions I have prepared this list with short and crisp oops interview questions and answers so that it does not take much time to learn. Especially for important programming languages such as Java, C, Python etc. OOPs is widely used and it is one of the most asked topics for technical interviews. This article has latest and most asked OOPs interview questions and answers. How many instances can be created for an abstract class ?.Which keyword can be used for overloading?.What is the default access modifier for a class?.Which OOPS concept provides Reusability ?.Name the OOPs concept which exposes only the necessary information to the calling functions ?.What does these terms defines – base class, subclass and superclass ?.What does the keyword virtual means in method ?.Can static methods use the nonstatic members ?.Is it necessary for a constructor to have parameters ?.What is run time / dynamic polymorphism ?.Explain the difference between a Class and a Structure ?.Explain the term pure virtual function ?.What is the default access modifier of a class?.What is the term early and late Binding ?.Explain the difference between new and override ?.How to call base method without creating an instance ?.Explain the main difference between a class and an object ?.Explain the main difference between overriding and overloading ?.What is the concept of method overriding ?.What are the different types of arguments ?.What is Inheritance ? What is the purpose ?.What is Polymorphism ? How is it supported by C++ ?.What are some of the main features of OOPs / What are basic concepts of OOP ?.What is Object Oriented Programming / OOP?. ![]()
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