C++ Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

STL (140)
OOPS (873)
C++ General (2409)

C++ Interview Questions

Questions Answers Views Company eMail

Why pure virtual functions are used if they don't have implementation / When does a pure virtual function become useful?

1 1255

What is virtual destructors? Why they are used?

1 1297

What you mean by early binding and late binding? How it is related to dynamic binding?

1 1343

What is meant by reference variable in C++?

1 1281

How to create a reference variable in C++

1 1307

What are the difference between reference variables and pointers in C++?

1 1241

What will the line of code below print out and why?

734

What is the error in the code below and how should it be corrected?

756

What will i and j equal after the code below is executed? Explain your answer.

1 1339

What are the different data types present in C++?

4 2297

What are class and object in C++?

1 1428

Compare compile time polymorphism and Runtime polymorphism

1 1214

What do you know about friend class and friend function?

1 1190

Define inline function

1 1271

What is a reference in C++?

1 1363

Un-Answered Questions { C++ }

What are the advantage of using register variables?

1160

Can a list of string be stored within a two dimensional array?

991

What is code reusability in c++?

1242

What is a literal in c++?

1092

What is the extraction operator and what does it do?

1081

How can we access protected and private members of a class?

1112

Which type does string inherit from?

1096

What is a null object in c++?

1222

Are strings mutable in c++?

1129

Does c++ have string data type?

1099

Which programming language should I learn first?

1085

Can c++ be faster than c?

1029

What is the difference between an external iterator and an internal iterator? Describe an advantage of an external iterator?

1114

Which recursive sorting technique always makes recursive calls to sort subarrays that are about half size of the original array?

995

What does the nocreate and noreplace flag ensure when they are used for opening a file?

1113

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