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

In C++ cout is: a) object b) class c) something else

11 29837

What is the output of: String a1 = "Hello"; String a2 = "world!"; String* s1 = &a2; String& s2 = a1; s1 = &a1; s2 = a2; std::cout << *s1 << " " << s2 << std::endl;

Lehman Brothers,

4 9226

Why would you make a destructor virtual?

Lehman Brothers,

3 9133

what is the difference between and "stdio.h"?

5 10513

what is the main difference between c and c++?

AZTEC, B.Tech, CMC, College School Exams Tests, HCL, IBM, ITM, Khalsa Institute, Microsoft, Oracle, Sanjeevni Institute, TCS, Tech Mahindra, Wipro, ZeOmega,

386 681644

Is there any difference between dlearations int* x and int *x? If so tell me the difference?

Lason,

16 30990

Explain the concept of abstracion and encapsulation with one example. What is the difference between them?

PCS,

3 12635

What are the different forms of polymorphism??

Mantaq, NUC, PCS,

8 16259

all about pointers

2 6249

what is diff between .net 1.1 and .net 2.0

4 10638

What C++ libraries are you proficient with?

Google,

1 9141

Which algorithm do you like the most? Why?

Google,

2 8666

Have you used MSVC? What do you think of it?

Google,

2 8772

What is design pattern?

Samsung,

2 8824

What are advantages and disadvantages of Design patterns?

IBM, Vodafone,

7 110611

Un-Answered Questions { C++ }

Explain mutable storage class specifier.

1091

When is the copy constructor called?

1145

Are vectors passed by reference c++?

992

Why iomanip is used in c++?

1134

Which bit wise operator is suitable for checking whether a particular bit is on or off?

1033

Explain about templates of C++.

1156

What are structures and unions?

1009

What is an overflow error?

1106

what is data abstraction in C++?

1084

What is setfill c++?

1159

What's the order in which the objects in an array are destructed?

1416

What does new in c++ do?

1027

How many different levels of pointers are there?

1215

What is the difference between while and do while loop?

1162

What is capacity in vector in c++?

1017

For More Un-Answered { C++ } Questions Click Here