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

What is a pure virtual function? Why is it represented as = 0...how is the internal implementation for the same

CTS,

3 8342

What are smart pointer? Whats its use?

CTS,

1 5655

What are function poinetrs? where are they used?

CTS,

1 4491

How many pointers are required to reverse a link list?

CTS,

5 11156

How many types of casting are there in C++? When is a dynamic cast,static_cast,reinterpret cast used?

CTS,

2 9326

Write a program to swap 2 chars without using a third varable? char *s = "A"; char *p = "B";

CTS,

7 24832

What are Binay tress and B trees? Diff between them?

CTS, GATE, Wipro,

8 15132

why we call c++ is object oriented lanaguage

HCL,

7 14205

WILL I GET A guaranteed JOB AFTER DOING bsc()IT) and GNIIT from an NIIT CENTRE??

Biocon, MIT, NIIT,

21 37204

Am studying basic c++ programming, have been given the following assignment. Design a linear program to calculate the maximum stress a material can withstand given a force and a diameter of a circle. To find the required area pi should be defined. Have most of the program sorted out but am at a loss as to how to show the calculations required. Can anyone help?

2195

Explain when u will use Observer pattern and how u will implement in c++ .

1 4643

What is the difference between static link library and dynamic link library?

Tech Mahindra,

7 21063

In multilevel inheritance constructors will be executed from the .... class to ... class

ABCO, TCS,

2 15733

reading material is provided 3 books for c++ if u need more do let me know thnx i hve lots of material do let me know if u want it

2 4756

what is template and type convertion

TATA,

2456

Un-Answered Questions { C++ }

Write a note about the virtual member function?

1060

Why can't we have instance(stack) of a class as a member of the same class like eg.Class A{A obj;} as we can have self refential pointer

2154

In C++ what is a vtable and how does it work?

1061

What is #include iomanip?

1010

What is the difference between ++ count and count ++?

1147

Can we make copy constructor private in c++?

1059

Is c++ platform dependent?

1082

Can I make ios apps with c++?

1054

What are virtual constructors/destructors?

1023

What is the purpose of extern storage specifier?

1193

When do we use copy constructors?

1085

Who made c++?

1089

What are disadvantages of pointers?

1040

Explain storage qualifiers in c++.

1083

Describe the advantage of an external iterator.

1042

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