Get Free Job Alerts on your Mobile by SMS- Subscribe now
If you would like to view All C++ language interview questions only, at one place, visit below link
1. What is a class?
Ans: The objects with the same data structure (attributes) and behavior (operations) are called class.
2. What is an object?
Ans: It is an entity which may correspond to real-world entities such as students, employees, bank account. It may be concrete such as file system or conceptual such as scheduling policies in multiprocessor operating system.
Every object will have data structures called attributes and behavior called operations.
3. What is the difference between an object and a class?
Ans: All objects possessing similar properties are grouped into class.
Example :–person is a class, ram, hari are objects of person class. All have similar attributes like name, age, sex and similar operations like speak, walk.
4. What is the difference between class and structure?
Ans: In class the data members by default are private but in structure they are by default public
5. Define object based programming language?
Ans: Object based programming language support encapsulation and object identity without supporting some important features of OOPs language.
Object based language=Encapsulation + object Identity
6. Define object oriented language?
Ans: Object-oriented language incorporates all the features of object based programming languages along with inheritance and polymorphism.
Example: – c++, java.
7. Define OOPs?
Ans: OOP is a method of implementation in which programs are organized as co-operative collection of objects, each of which represents an instance of some class and whose classes are all member of a hierarchy of classes united through the property of inheritance.
8. What is public, protected, and private?
Ans: These are access specifier or a visibility lebels .The class member that has been declared as private can be accessed only from within the class. Public members can be accessed from outside the class also. Within the class or from the object of a class protected access limit is same as that of private but it plays a prominent role in case of inheritance
9. What is a scope resolution operator?
Ans: The scope resolution operator permits a program to reference an identifier in the global scope that has been hidden by another identifier with the same name in the local scope.
10. What do you mean by inheritance?
Ans: The mechanism of deriving a new class (derived) from an old class (base class) is called inheritance. It allows the extension and reuse of existing code without having to rewrite the code from scratch.
Related Fresher Interview Questions
1. C Language Interview Questions
2. C++ Language Interview Questions
3. Data Structures Interview Questions
4. DBMS Interview Questions
5. Operating System Interview Questions
6. UNIX Interview Questions
Tags:aptitude question on c++, basic c++ interview questions, basic c++ interview questions and answers, basic c++ interview questions answers, c and c++ interview questions for freshers, c interview questions, c interview questions and answers, c interview questions and answers for freshers, c interview questions for freshers, c++ interview questions answers, c++ interview questions for experienced, cpp interview questions, cpp interview questions and answers, fresher interview questions, fresher interview questions and answers, fresher interview questions and answers on c and c++, fresher interview questions on c and c++, fresher interview questions with answers, interview question on c++, it fresher interview questions, it fresher interview questions and answers, objective question on c++, objective type question on c++, question on c++, questions for interview, technical question on c++, viva question on c++